chore(release): 2.3.0

feat: log unhandled errors and pretty dev output (#120)

.ai/architecture.md

@@ -41,8 +41,8 @@ provider records преобразуются перед чистыми domain cal
 
 Nest DTO/metadata → `npm run openapi:generate` → игнорируемый Git `openapi.json`
 для публичных consumers.
-Problem Details фильтруются общей HTTP boundary; StructuredLogger добавляет
-request context и ограничивает поля событий. Jest unit tests, изолированные
+Problem Details фильтруются общей HTTP boundary; native Pino добавляет request
+context, StructuredLogger ограничивает поля событий. Jest unit tests, изолированные
 SQLite/HTTP suites и OpenAPI parity доказывают разные части поведения.
 Локальные источники выбираются через [Источники](../AGENTS.md#источники).
 
@@ -160,8 +160,11 @@ HTTP/e2e naming и расположение — в [Testing](conventions/testing
 
 `*.module.ts` задаёт DI boundary; `*.api.ts` перечисляет используемые другими
 модулями providers, функции и типы. Внешний production import идёт через этот
-API или файл Nest module. Чистый `integrations/tbank/decimal.ts` — отдельный
-публичный вход для protobuf conversion: импорт арифметики не загружает DI/Prisma.
+API или файл Nest module. Чистые `integrations/tbank/decimal.ts`,
+`integrations/tbank/tbank-protocol.ts`, `integrations/tbank/tbank-error-code.ts` и
+`modules/investments/operations/domain/operations-sync-plan.ts` — отдельные
+публичные входы для protobuf conversion, protocol/error vocabulary и interval
+rules: импорт этих значений и расчётов не загружает DI/Prisma.
 Внутри модуля используй прямые локальные импорты.
 Tests могут импортировать внутренний owner для проверки поведения и mocks.
 Новый export требует текущего потребителя; controller и persistence остаются
@@ -233,8 +236,8 @@ protobuf units/nano conversion — T-Bank integration. Domain используе
 Общий выбор symbolic values и числовых policies —
 [Domain values](conventions/engineering.md#domain-values).
 Сохраняй strict TS и explicit boundary types. Для недоверенного input выбирай
-`unknown` + runtime narrowing; отключённый lint `no-explicit-any` не делает
-`any` нормой domain/application model. `declare` допустим для заполняемых извне
+`unknown` + runtime narrowing; ESLint запрещает explicit `any`
+в domain/application model, тестах и конфигурации TypeScript. `declare` допустим для заполняемых извне
 DTO fields, не для сокрытия неинициализированного owned state.
 
 OpenAPI enum metadata и runtime validation должны читать тот же vocabulary,
@@ -244,11 +247,17 @@ OpenAPI enum metadata и runtime validation должны читать тот ж
 сохраняй; generated Prisma/protocol code вручную не меняй.
 
 `@typescript-eslint/no-magic-numbers` включён как error; базовое ESLint rule
-отключено в пользу TS-версии. Исключения для очевидных чисел и их bigint форм,
-индексов, default values, enum/type declarations и readonly properties заданы
-в ESLint config. Test fixtures/expected values остаются inline, остальные lint
-правила продолжают действовать. Numeric policy получает предметное имя и единицы;
-semantic magic strings проверяются conventions/review без нового инструмента.
+отключено в пользу TS-версии. Общего списка `ignore` для чисел и bigint нет:
+значения, проверяемые правилом, получают предметные имена у владельца.
+Исключения для индексов, default values, enum/type declarations и readonly
+properties заданы в ESLint config. Test fixtures/expected values остаются inline,
+остальные lint правила продолжают действовать. Numeric policy получает предметное имя и единицы;
+Machine codes и protocol values задаются строковыми enum у владельца.
+`no-restricted-syntax` запрещает inline-коды и значения известных protocol families
+в production TS; `no-unsafe-enum-comparison` проверяет сравнения enum.
+Внешние открытые строки проверяются на boundary без cast и без потери unknown fallback.
+Tests сохраняют независимые literal wire assertions; обычный текст и env keys
+не считаются кодами. Новые словари требуют проверки владельца и расширения selectors.
 
 ## Logging
 
@@ -258,5 +267,8 @@ semantic magic strings проверяются conventions/review без ново
 ## Проверка
 
 `npm run typecheck:app`, `npm run lint`, targeted Jest по изменённому use case.
-Смысл boundaries проверяется review: backend не имеет отдельного автоматического
-FSD/DI architecture checker. Existing tests и build не доказывают правильный owner.
+ESLint проверяет прямые imports: domain не зависит от transport/persistence,
+controllers делегируют application, use cases не импортируют Prisma. Чистые
+protocol inputs разрешены; existing CRUD/transaction services сохраняют DB owner.
+Транзитивные зависимости, DI composition и смысл ownership проверяются review:
+backend не имеет полного FSD/DI graph checker. Tests/build не доказывают owner.

.ai/conventions/engineering.md

@@ -7,11 +7,19 @@
 checkout. Внешний API задаётся предоставленным публичным контрактом;
 исходники или инструкции его реализации не являются зависимостью разработки.
 При нехватке требования сообщи, какое решение не определено, до его реализации.
+При конфликте с общим шаблоном следуй местным правилам и явному запросу
+пользователя. Выбирай реализацию самостоятельно, но изменение финансовой
+логики, публичного контракта или утверждённой семантики возвращай владельцу
+на согласование до зависимой работы.
 
 Начни с результата и affected areas. До edits проследи flow/invariants, найди
 owner и 1–3 примера. Код показывает механизм; случайный аналог не меняет контракт.
-Работай напрямую; OpenSpec/SDD lifecycle — только по явному запросу.
-Перед Node-командами активируй местную `.nvmrc`: `nvm use --silent`.
+Выбери lightweight или SDD по Engineering Workflow из AGENTS; OpenSpec lifecycle
+начинай после явного решения Change Owner.
+Перед Node-командами активируй местную `.nvmrc`: если `nvm` не загружен в
+non-interactive shell, загрузи установленный `$HOME/.nvm/nvm.sh`; затем
+выполни `nvm use --silent` из backend. Если `nvm.sh` недоступен, остановись,
+не используй системный Node.
 Сохраняй чужие staged/unstaged/untracked изменения и read-only архивы.
 
 ## Change scope
@@ -29,7 +37,8 @@ owner и 1–3 примера. Код показывает механизм; с
 ## Domain values
 
 Finite business vocabulary принадлежит одному domain/module/entity owner.
-Переиспользуй его symbols; для нового словаря без аналога — `as const` + union.
+Переиспользуй его symbols; для machine codes и protocol values используй
+строковые `enum`, для структуры с разными payload — discriminated union.
 Сохраняй wire values; generated/external enums не переписывай вручную.
 Numeric policy называй по смыслу и единицам. Индексы, `Math.max(value, 0)` и
 обычные labels не выноси в constants без semantic benefit.
@@ -56,19 +65,33 @@ Peer-конфликт решай совместимыми версиями бе
 
 ## Проверки и завершение
 
-Code/dependency change: `npm ci`, полный `npm run verify` и дополнительные
-risk checks из местной testing convention. Targeted tests ускоряют итерацию,
-но не заменяют финальный gate. `lint:fix`/format — edits, не proof.
-Markdown-only: проверь новые/изменённые тексты, локальные ссылки/якоря, маршруты
-чтения и `git diff --check`; application build ради текста не нужен.
-Повтори routing по staged/unstaged/new files. Запиши краткие команды, результаты
-и ограничения. Зелёный lint не заменяет semantic/security review.
+| Когда | Что проверить |
+| --- | --- |
+| Окружение новое, изменились manifest/lockfile или Node, установка сомнительна | `npm ci` до Node-проверок; одна правка кода переустановки не требует. |
+| Итерация | Адресные тесты, typecheck и lint по затронутому поведению и риску. При изменении поведения добавь/обнови содержательную регрессию, если существующая проверка не ловит её; для косметики не создавай искусственный тест. |
+| Итоговый code/dependency diff | Перед объявлением готовности и передачей к интеграции выполни один полный `npm run verify` на итоговых входах. Дополнительные risk checks из testing convention и явно утверждённые task checks обязательны; CI проверяет независимо. |
+| Только Markdown | Проверь тексты, ссылки/якоря, маршруты чтения и `git diff --check`; application build не нужен. При изменении verification-контура проверь его работу. |
+
+Повтори routing по staged/unstaged/new files. В отчёте по задаче/PR запиши
+проверенные входы, команду, exit code, результат и ограничения. Повторяй
+проверку при изменении значимых входов (включая config, dependencies и
+generated artifacts), сомнении в evidence или явном запросе пользователя.
+`lint:fix`/format — edits, не proof; lint не заменяет semantic/security review.
 
 ## Git и релизы
 
-Работа — в `codex/<task>` от актуального `develop`, затем PR в `develop`.
+Работа — в ветке `<type>/<issue-number>-<slug>` от актуального `develop`,
+затем PR в `develop`; для cross-repo ссылки укажи owner/repo#number.
+Имя ветки и связь PR с реальной Issue проверяются вручную: commitlint
+проверяет синтаксис commit/PR title, но не существование и соответствие Issue.
 Сохраняй чужие изменения; перед commit просмотри staged paths и diff.
-Commits и PR titles — Conventional Commits; допустим `spec:`. Каждый commit
-содержит одну связанную задачу. Root другого checkout не управляет этим repo.
+Commits и PR titles — Conventional Commits с parser-recognized Issue reference; допустим
+`spec:`. Каждый commit содержит одну задачу. Исключения release и правила
+ссылки — в Engineering Workflow из AGENTS. Root другого checkout не управляет этим repo.
 Прямой push в `main`, force-push и перенос опубликованных тегов не входят в
-обычную работу. Перед release/hotfix прочитай местный README, раздел «Релизы».
+обычную работу. PR сливается squash или rebase-merge; merge-коммит не
+используется. `main` обновляется только fast-forward из `develop`, поэтому
+`origin/main` всегда предок `origin/develop`:
+`git merge-base --is-ancestor origin/main origin/develop`. Срочный fix —
+обычная ветка `fix/*` от `develop`; пути hotfix от `main` нет.
+Перед релизом прочитай местный README, раздел «Релизы».

.ai/conventions/error-handling.md

@@ -8,8 +8,8 @@ application/domain outcome → application mapping → HttpExceptionFilter
 ```
 
 Сохраняй принятый профиль RFC 9457: `status`, стабильный публичный `code`,
-для validation — `errors: [{ pointer, detail }]`. Точный контракт и известное
-расхождение validation описаны в [HTTP API](http-api.md#источник-контракта).
+для validation — `errors: [{ pointer, detail }]`. Точный контракт validation
+описан в [HTTP API](http-api.md#источник-контракта).
 Не добавляй `type/title/instance` как обязательные поля без contract change.
 
 Чистый domain не импортирует Nest HTTP exceptions. Существующий application

.ai/conventions/http-api.md

@@ -83,6 +83,6 @@ artifact отдельно; backend не читает их репозитории
 HTTP prefix — `/api/v1`; Swagger доступен согласно `src/config/swagger.config.ts`.
 Общий error response — `application/problem+json` со `status` и публичным `code`.
 Validation требует `400 / VALIDATION_ERROR` и `errors: [{ pointer, detail }]`.
-Известное ограничение: ValidationPipe сейчас формирует строковые сообщения,
-а filter ожидает структурированные field errors; schema parity не доказывает
-правильность `errors`. Изменение требует проверки реального HTTP pipeline.
+ValidationPipe сохраняет структурированные field errors без `target/value`,
+а filter формирует JSON pointers, включая вложенные поля. Schema parity не
+доказывает правильность `errors`; изменения проверяются через реальный HTTP pipeline.

.ai/conventions/integrations.md

@@ -22,7 +22,9 @@ RPC, credentials/access и resilience. Эти владельцы не объед
 
 Преобразование provider records происходит на boundary: например,
 `tbank-portfolio.mapper.ts` и `bond-money.mapper.ts`; protobuf decimal helper
-остаётся отдельным чистым входом integration. Domain получает внутренние
+остаётся отдельным чистым входом integration. `tbank-protocol.ts` и
+`tbank-error-code.ts` также импортируются напрямую: их enums и guards
+не должны загружать DI/Prisma через service exports. Domain получает внутренние
 значения и не импортирует gRPC/SDK types. Не добавляй новый adapter на каждый
 client или mapper для простого копирования полей. Даты/units/nano разбираются
 на границе клиента/его mapping, а не становятся моделью чистых расчётов.
@@ -41,6 +43,10 @@ CA mechanism. Точные параметры и ограничения прин
 [validated environment](../../src/config/env.validation.ts) и
 [TbankClient](../../src/integrations/tbank/tbank.client.ts).
 
+Все RPC, включая metadata, допускают один повтор временной upstream-ошибки.
+Переполнение локальной очереди не повторяется. Свечи загружаются по требуемому
+диапазону; prefetch портфеля и автоматический переход к `all` не поддерживаются.
+
 Эта queue/retry policy относится к T-Bank. MOEX/NCR HTTP clients используют
 собственный bounded timeout и безопасный unavailable outcome; не приписывай им
 gRPC retry policy. При изменении upstream сначала прочитай конкретный client.

.ai/conventions/observability.md

@@ -7,10 +7,12 @@
 - `info` — значимый lifecycle/outcome; `debug` — подробности успешного RPC;
   `warn` — восстановимая проблема/retry; `error` — окончательный сбой.
   Не добавляй log на каждый вход/выход функции или дубликат HTTP completion.
-- RequestContextService и request middleware владеют correlation: серверный
-  request ID возвращается как `X-Request-ID`, входящий client ID хранится отдельно.
+- Native `nestjs-pino` context и `pino-http` completion владеют correlation:
+  server request ID возвращается как `X-Request-ID`, client ID хранится отдельно.
+  Настройки принадлежат `common/logging/logging.module.ts`; второй AsyncLocalStorage
+  или HTTP completion middleware не нужен.
   Передавай существующий context, не создавай собственный UUID в каждом service.
-- Wrapper ограничивает поля, Pino redacts request secrets. Не логируй passwords,
+- StructuredLogger ограничивает поля, Pino redacts request secrets. Не логируй passwords,
   tokens, cookie, Authorization, credentials, connection generation, raw body
   или upstream error. Secret в `message/stack` не становится безопасным из-за
   allowlist; правила [Security](security-auth.md) обязательны для sensitive data.

.ai/conventions/security-auth.md

@@ -17,7 +17,9 @@ Source code конфигурации cookie —
 проверки browser/HTTP поведения, не только TypeScript.
 
 Refresh rotation атомарна: один победитель, проигравший/superseded token получает
-401, но сам по себе не отзывает session победителя. Не вводи replay history/grace
+401, но не меняет cookie и сам по себе не отзывает session победителя.
+Cookie очищает logout; межвкладочная синхронизация не требуется, допустим re-login.
+Не вводи Web Locks, replay history/grace
 или иной security contract без текущей задачи. Logout идемпотентен, отзывает
 сессию и очищает refresh cookie на HTTP-границе.
 

.ai/conventions/testing.md

@@ -41,9 +41,11 @@ Unit specs colocated в `src/**/*.spec.ts`; HTTP/integration — `test/`.
 Полный `npm run verify` включает lint, оба typecheck, Jest и build.
 `npm run test:openapi-contract` — отдельный required check при wire contract change.
 
-`npm run test:e2e` запускает все HTTP suites через изолированный SQLite runner;
+`npm run test:e2e` запускает функциональные HTTP suites через изолированный SQLite runner;
 `npm run test:sqlite` — только auth/cards. Каждая suite получает новую временную
 базу со штатными migrations. Прямой Jest без runner отклоняется до DB-запросов.
+Большой latency/load benchmark запускается отдельно через `npm run test:performance`:
+его абсолютный wall-clock budget не является merge gate на shared runner.
 `prisma.config.ts` исключает влияние унаследованного `RUST_LOG=warn/error`
 на fresh migration; точная Prisma version принадлежит manifest/lockfile. Подробности и регрессия запуска —
 [Backend README](../../README.md#реальная-sqlite-и-сохранность-данных).

.gitea/ISSUE_TEMPLATE/bug.md

@@ -0,0 +1,12 @@
+---
+name: Bug Report
+about: Неверное поведение
+---
+## Проблема и шаги воспроизведения
+
+## Факт / ожидание
+
+## Acceptance Criteria
+- [ ]
+
+## Окружение / ссылки (если применимо)

.gitea/ISSUE_TEMPLATE/engineering.md

@@ -0,0 +1,10 @@
+---
+name: Engineering Task
+about: CI, тесты, документация, процесс и прочее
+---
+## Контекст и результат
+
+## Scope / связанные Issues (если есть)
+
+## Acceptance Criteria
+- [ ]

.gitea/ISSUE_TEMPLATE/feature.md

@@ -0,0 +1,12 @@
+---
+name: Feature Request
+about: Новое наблюдаемое поведение
+---
+## Зачем и какой результат
+
+## Ожидаемое поведение
+
+## Acceptance Criteria
+- [ ]
+
+## Зависимости / связанные Issues (если есть)

.gitea/ISSUE_TEMPLATE/refactor.md

@@ -0,0 +1,12 @@
+---
+name: Refactoring / Technical Debt
+about: Улучшение без нового поведения
+---
+## Проблема и результат
+
+## Сохраняемые инварианты / границы
+
+## Acceptance Criteria
+- [ ]
+
+## Зависимости / ссылки (если есть)

.gitea/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,11 @@
+## Summary
+
+## Linked Issue
+Refs
+
+## Changes
+
+## Verification
+- Команда / результат / ограничения:
+
+## Breaking Changes (если есть)

.gitea/workflows/commits.yml

@@ -1,26 +0,0 @@
-name: Conventional commits
-
-on:
-  pull_request:
-    types: [opened, synchronize, reopened, edited]
-
-jobs:
-  commits:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: https://github.com/actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-          fetch-depth: 0
-      - uses: https://github.com/actions/setup-node@v4
-        with:
-          node-version-file: .nvmrc
-      - run: npm ci --ignore-scripts
-      - name: Check PR title and commits
-        env:
-          PR_TITLE: ${{ github.event.pull_request.title }}
-          BASE_SHA: ${{ github.event.pull_request.base.sha }}
-          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
-        run: |
-          printf '%s\n' "$PR_TITLE" | npm run commitlint -- --strict
-          npm run commitlint -- --strict --from "$BASE_SHA" --to "$HEAD_SHA"

.gitea/workflows/image.yml

@@ -28,9 +28,8 @@ jobs:
           docker version
           docker buildx version
       - run: npm ci
-      - run: npx --no-install prisma generate
       - run: npm run verify
-      - run: npm run test:e2e
+      - run: node test/sqlite.cjs --all
       - name: Login with dedicated Nexus writer
         env:
           REGISTRY_USERNAME: ${{ secrets.NEXUS_USERNAME }}

.gitea/workflows/security.yml

@@ -1,31 +0,0 @@
-name: Backend security
-
-on:
-  push:
-    branches:
-      - '**'
-  pull_request:
-  schedule:
-    - cron: '17 5 * * *'
-
-jobs:
-  security:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: https://github.com/actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - name: Record checked revision
-        run: git rev-parse HEAD
-      - name: Scan history with Gitleaks 8.30.1
-        run: |
-          curl --fail --location --silent --show-error https://github.com/gitleaks/gitleaks/releases/download/v8.30.1/gitleaks_8.30.1_linux_x64.tar.gz -o /tmp/gitleaks.tar.gz
-          echo '551f6fc83ea457d62a0d98237cbad105af8d557003051f41f3e7ca7b3f2470eb  /tmp/gitleaks.tar.gz' | sha256sum --check
-          mkdir -p /tmp/gitleaks-bin
-          tar -xzf /tmp/gitleaks.tar.gz -C /tmp/gitleaks-bin gitleaks
-          /tmp/gitleaks-bin/gitleaks git --log-opts=--all --redact=100 --no-banner
-      - uses: https://github.com/actions/setup-node@v4
-        with:
-          node-version-file: .nvmrc
-      - name: Audit runtime and development dependencies
-        run: npm audit --include=dev --audit-level=low

.gitea/workflows/verify.yml

@@ -2,11 +2,80 @@ name: Backend verify
 
 on:
   push:
-    branches: ['**']
+    branches: [develop, main]
   pull_request:
+    types: [opened, synchronize, reopened, edited]
+  schedule:
+    - cron: '47 5 * * *'
+
+# Gitea >= 1.26. A new revision supersedes only the same PR/branch/event.
+concurrency:
+  group: backend-verify-${{ gitea.event_name }}-${{ gitea.event.pull_request.number || gitea.ref }}
+  cancel-in-progress: true
 
 jobs:
+  commits:
+    if: gitea.event_name == 'pull_request'
+    timeout-minutes: 15
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: 0
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+      - run: npm ci --ignore-scripts
+      - name: Check PR title and commits
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}
+          BASE_SHA: ${{ github.event.pull_request.base.sha }}
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          printf '%s\n' "$PR_TITLE" | npm run commitlint -- --strict
+          if [[ "$PR_TITLE" =~ ^chore\(release\):\ [0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            npm run commitlint -- --strict --from "$HEAD_SHA^" --to "$HEAD_SHA"
+          else
+            npm run commitlint -- --strict --from "$BASE_SHA" --to "$HEAD_SHA"
+          fi
+
+  security:
+    needs: commits
+    if: >-
+      !cancelled() &&
+      gitea.event.action != 'edited' &&
+      (needs.commits.result == 'success' || needs.commits.result == 'skipped')
+    timeout-minutes: 15
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Record checked revision
+        run: git rev-parse HEAD
+      - name: Scan history with Gitleaks 8.30.1
+        run: |
+          curl --fail --location --silent --show-error https://github.com/gitleaks/gitleaks/releases/download/v8.30.1/gitleaks_8.30.1_linux_x64.tar.gz -o /tmp/gitleaks.tar.gz
+          echo '551f6fc83ea457d62a0d98237cbad105af8d557003051f41f3e7ca7b3f2470eb  /tmp/gitleaks.tar.gz' | sha256sum --check
+          mkdir -p /tmp/gitleaks-bin
+          tar -xzf /tmp/gitleaks.tar.gz -C /tmp/gitleaks-bin gitleaks
+          /tmp/gitleaks-bin/gitleaks git --log-opts=--all --redact=100 --no-banner
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+      - name: Audit runtime and development dependencies
+        run: |
+          npm audit --omit=dev --audit-level=low
+          npm audit --include=dev --audit-level=high --ignore-advisory=GHSA-hp3w-g68c-fv3c
+
   verify:
+    needs: [commits, security]
+    if: >-
+      !cancelled() && gitea.event.action != 'edited' &&
+      needs.security.result == 'success' &&
+      gitea.event_name != 'schedule'
+    timeout-minutes: 45
     runs-on: ubuntu-latest
     steps:
       - uses: https://github.com/actions/checkout@v4
@@ -18,12 +87,10 @@ jobs:
         with:
           node-version-file: .nvmrc
       - run: npm ci
-      - name: Generate Prisma client before typechecks
-        run: npx --no-install prisma generate
       - name: Run all backend gates
         run: npm run verify
       - name: Run isolated SQLite and runtime OpenAPI suites
-        run: npm run test:e2e
+        run: node test/sqlite.cjs --all
       - name: Analyze develop with SonarQube
         if: gitea.event_name == 'push' && gitea.ref == 'refs/heads/develop'
         # v2.3.0: same Docker-based scanner used for SonarQube 9.9.

.nvmrc

@@ -1 +1 @@
-24.21.0
+24.22.1

.prettierrc

@@ -1,4 +0,0 @@
-{
-  "singleQuote": true,
-  "trailingComma": "all"
-}

AGENTS.md

@@ -4,6 +4,9 @@
 только его файлы и предоставленные публичные контракты. Перед работой прочитай
 [порядок работы](.ai/conventions/engineering.md#граница-и-порядок-работы), затем
 объединяй triggers задачи и путей; читай активированные темы до решения.
+До edits найди/создай подходящую Gitea Issue, проверь AC и ветку; чтение
+допускается без Issue. Общий маршрут — [Engineering Workflow](https://git.personal.ksv741.ru/WealthLedger/main/src/commit/03b3b59e6ff2ba391f9dfc42a039a96d0d84c1c9/.ai/conventions/engineering-workflow.md)
+(main#28; после merge — актуальная версия `develop`).
 
 | Решение / сигнал | Читать |
 | --- | --- |

BACKEND_AUDIT.md

@@ -0,0 +1,673 @@
+# Аудит backend WealthLedger и план исправлений
+
+Дата аудита: 2026-09-27. Репозиторий: `/Users/ksv741/Project/vibe/WealthLedger/backend`.
+База: `516e43203eb3fee8e6a0c7018be2fee11f1b900c`, ветка `codex/investment-contracts`.
+При аудите рабочее дерево было чистым; production-код не изменялся.
+Этот документ сохраняет результаты аудита и задаёт проверяемый план исправлений.
+Само сохранение документа не означает выполнения исправлений.
+
+Номера строк относятся к указанному commit. Перед изменением повторно найти
+symbol и проверить актуальный flow: после предыдущих исправлений строки сдвинутся.
+Все относительные пути и ссылки относятся только к backend.
+
+## Общая оценка
+
+Backend имеет понятных владельцев ответственности: контроллеры тонкие,
+денежные расчёты преимущественно точные, транзакции и очереди сосредоточены
+у своих владельцев. Массовое дробление файлов не требуется.
+Наиболее проблемные области — обработка ошибок auth, проверка ответов MOEX,
+согласование состояния фоновой синхронизации и временных признаков кешированных данных.
+
+Изучены локальные [AGENTS.md](AGENTS.md), [порядок работы](.ai/conventions/engineering.md),
+[архитектура](.ai/architecture.md) и активированные темы HTTP, errors, data,
+testing, security, integrations и observability. Соседние репозитории не использовались.
+
+Инвентаризированы 135 production-файлов TypeScript, 16 004 строки, 17 Nest module-файлов.
+Generated Prisma, vendor protocols, миграции и тесты отделены от production-рейтинга.
+
+Приоритеты: **высокий** — существенный риск безопасности или искажения данных;
+**средний** — ограниченный дефект поведения, контракта или доказанная стоимость связности;
+**низкий** — локальное упрощение. Уверенность всех перечисленных находок высокая
+для описанного механизма; ограничения конкретного воспроизведения указаны отдельно.
+
+## План выполнения и границы
+
+1. Прочитать действующий backend AGENTS и активированные conventions; зафиксировать
+   текущие HEAD/status. Сохранить существующие staged/unstaged/untracked изменения.
+2. Работать по находкам A01–A10 и cleanup C01–C07 ниже, в порядке пакетов из таблицы.
+   Перед каждым исправлением перечитать владельца целиком, callers, связанные tests
+   и 1–3 релевантных примера. Если факт больше не воспроизводится, отметить это
+   с доказательством вместо механического применения рекомендации.
+3. Для дефекта сначала получить падающую проверку наблюдаемого результата на самой
+   дешёвой надёжной boundary. Для concurrency/atomicity использовать реальную
+   изолированную SQLite; mock race не доказывает DB-инвариант.
+4. Исправлять у существующего владельца минимальным связанным diff. Сохранять
+   precision, ownership, public error codes, transaction/fencing, cache isolation,
+   limiter и выполняющиеся promises. Предложения ниже задают результат, а не
+   обязательную форму реализации.
+5. После каждого пакета выполнить targeted checks; в конце — актуальные обязательные
+   gates по backend conventions. Перед каждой Node-командой выполнить `nvm use --silent`.
+6. Сохранить исходный снимок аудита; результаты реализации записывать в таблицу
+   «Статус исправлений». Для каждого ID указать diff/решение, команды и результат,
+   остаточный риск либо точную причину невыполнения.
+
+| Пакет | Пункты | Условие завершения |
+| --- | --- | --- |
+| 1. Auth и безопасные ошибки | A01, A02 | Отказы хранилища не маскируются; секреты не попадают в completion log |
+| 2. MOEX trust boundary | A03 | Malformed response не публикуется как полный результат; pagination завершается |
+| 3. Статус синхронизации | A04 | Screen учитывает состояние successor через владельца operations |
+| 4. Свечи | A05 | Force не теряется при coalescing; forced publication остаётся атомарной |
+| 5. Свежесть и время | A06, A07 | Stale-флаг актуален; wire timestamp совпадает с используемым при фильтрации |
+| 6. HTTP validation | A08 | Реальный pipeline возвращает структурированные field errors |
+| 7. Связность и удаление legacy | A09, A10, C01–C07 | Живые boundaries сохранены; лишние реализации и exports удалены |
+
+Пакеты независимы по цели, но могут пересекаться файлами и общими fixtures.
+Параллелить только области с непересекающимся владением файлами, затем выполнить
+общую проверку. A02 и A08 изменяют один HTTP filter и должны быть согласованы.
+
+В scope входят исправления подтверждённых находок и их regression tests.
+Гипотезы в конце документа не являются задачами на изменение кода.
+Новые зависимости, generic repositories, scheduler framework, интерфейсы ради
+паттерна, schema migrations и size-only splits для этих исправлений не требуются.
+Отдельную необходимость такого расширения следует доказать до реализации.
+Коммиты, push и PR выполняются только по отдельному запросу пользователя.
+
+## Подтверждённые находки
+
+### A01. Auth lifecycle смешивает invalid credentials и operational failure
+
+**Приоритет:** высокий. **Уверенность:** высокая.
+
+**Места и потребители:** [AuthService.logout, строки 104–126](src/modules/auth/application/auth.service.ts),
+[AuthController.logout, 95–104; refresh, 85–91](src/modules/auth/presentation/auth.controller.ts).
+
+Общий catch в logout подавляет JWT verification errors и отказ Prisma при записи
+`revokedAt`. Controller затем очищает cookie и возвращает 204, хотя серверная
+сессия осталась действительной. Сохранённая копия refresh token продолжает работать.
+Смежное проявление: refresh controller удаляет cookie при любой ошибке, включая
+временный отказ БД, без доказательства недействительности токена.
+
+**Доказательство:** inline fault injection на настоящих AuthService, JwtService
+и AuthController с синтетической сессией подтвердил:
+
+```text
+logoutResolved=true
+cookieCleared=true
+sessionNotRevoked=true
+sameRefreshTokenStillUsable=true
+unexpectedRefreshErrorPropagated=true
+validCookieRemoved=true
+```
+
+Это доказательство обработки injected boundary failure, а не реального отказа БД.
+[Auth HTTP suite](test/app.e2e-spec.ts) проверяет обычный logout, но не этот отказ.
+Нарушен [контракт отзыва сессии](.ai/conventions/security-auth.md): идемпотентность
+не превращает несостоявшуюся запись в успешную.
+
+**Минимальное действие:** ограничить подавление ошибок logout недействительным JWT;
+ошибки хранилища пробрасывать. При refresh очищать cookie только при установленном
+auth failure. Существующий AuthService.refresh уже отделяет verification от DB reads;
+BankCardsRepository.write также пробрасывает неизвестные ошибки.
+
+**Приёмка:**
+
+- Отсутствующий/недействительный/уже отозванный refresh сохраняет идемпотентный logout.
+- Ошибка записи revocation не возвращает фиктивный 204.
+- Успешный logout делает последующий refresh невозможным.
+- Временный отказ refresh не удаляет действующую cookie, повтор после восстановления возможен.
+- Проверены status/code/cookie через configured HTTP; успешный отзыв — с SQLite.
+
+**Риск:** сохранить существующую семантику недействительных токенов. Изменение
+access-JWT lifetime или введение replay history не входят в этот пункт.
+
+### A02. Многострочное сообщение исключения попадает в completion log
+
+**Приоритет:** высокий. **Уверенность:** высокая.
+
+**Места:** [HttpExceptionFilter, 30–37](src/common/filters/http-exception.filter.ts).
+**Потребители:** [RequestLoggingMiddleware, 43–57](src/common/logging/request-logging.middleware.ts),
+[StructuredLogger, 47–63](src/common/logging/structured-logger.service.ts).
+
+Фильтр удаляет только первую строку `exception.stack`. Остальные строки
+многострочного Error.message сохраняются. Поле stack разрешено logger allowlist;
+redaction HTTP body к нему не применяется.
+
+**Воспроизведение:** configured HTTP app; AuthService.login выбрасывает синтетический
+`Error('operation failed\npassword: SYNTHETIC_AUDIT_SECRET')`. Ответ остаётся
+`500 / INTERNAL_SERVER_ERROR`, но completion log содержит вторую строку сообщения.
+Реальные секреты не использовались. Существующий filter spec проверяет однострочное сообщение.
+Нарушены [observability](.ai/conventions/observability.md) и security rules.
+
+**Минимальное действие:** убрать передачу сырого stack через общую HTTP boundary,
+сохранив code/request context. Если stack необходим, нужна проверенная форма кадров
+без произвольного текста исключения; удаление только первой строки недостаточно.
+
+**Приёмка:** multiline synthetic secrets отсутствуют в response и в конечном
+payload logger, а status/code/correlation сохраняются. Проверить настоящий
+filter → middleware → logger, не только mock вызова filter.
+
+**Риск:** диагностическая подробность может уменьшиться; raw message возвращать нельзя.
+
+### A03. MOEX malformed response превращается в полный пустой прогноз
+
+**Приоритет:** высокий. **Уверенность:** высокая.
+
+**Место:** [MoexClient, 122–142 и 163–165](src/integrations/moex/moex.client.ts).
+Отсутствующий запрошенный ISS block преобразуется в `[]`. Неполный cursor может
+завершить чтение с частичными данными; cursor с нулевым pageSize может зациклить его.
+
+**Реальная цепочка:** [CatalogEnrichmentService, 444 и 509–548](src/modules/investments/instruments/application/catalog-enrichment.service.ts)
+публикует `bondEvents: []`; readMany считает существующий row complete;
+[UpcomingEventsService, 137–197](src/modules/investments/upcoming-events/upcoming-events.service.ts)
+строит пустые events/totals; [ForecastRepository, 124–150](src/modules/investments/portfolio/infrastructure/forecast.repository.ts)
+может заменить прежний непустой forecast. Владелец protocol validation — integration client.
+
+**Воспроизведение:** настоящий MoexClient с mock fetch HTTP 200 без coupons/offers
+вернул `[]`. Cursor `INDEX=0,TOTAL=1,PAGESIZE=0` дал пять запросов `start=0`;
+проба остановлена искусственной ошибкой. Timeout каждого fetch не ограничивает весь цикл.
+
+**Расхождение тестов:** [moex.client.spec, 97–107](src/integrations/moex/moex.client.spec.ts)
+считает отсутствующий block пустым результатом;
+[upcoming-events.e2e, 439–451](test/upcoming-events.e2e-spec.ts) обещает обратное,
+но подменяет весь клиент готовым rejection и не проверяет parser.
+
+**Минимальное действие:** различать отсутствующий/повреждённый block и корректный
+`data: []`; проверять структуру строк и cursor, положительный pageSize и строгое
+продвижение start. Нарушение протокола → `MOEX_UNAVAILABLE`, без частичного success.
+
+**Приёмка:**
+
+- Malformed block/cursor не меняет сохранённый полный календарь/forecast.
+- Корректный пустой block остаётся успешным пустым результатом.
+- Непродвигающаяся pagination завершается ошибкой, без бесконечных fetch.
+- Семантика HTTP 404 проверена отдельно и не изменена случайно.
+- Downstream regression использует настоящий MoexClient с mock fetch, а не mock rejection клиента.
+
+**Риск:** перепутать законное отсутствие данных с ошибкой protocol shape.
+
+### A04. Screen sync сообщает succeeded до завершения successor
+
+**Приоритет:** средний. **Уверенность:** высокая.
+
+**Места:** [TbankSyncService.status, 330–345](src/modules/investments/tbank-sync/tbank-sync.service.ts),
+[TbankSyncRepository.read, 70–80](src/modules/investments/tbank-sync/tbank-sync.repository.ts).
+[Operations repository, 441–445](src/modules/investments/operations/infrastructure/brokerage-operations.repository.ts)
+помечает объединяемую группу `superseded` и сохраняет successorId. Владелец операций
+умеет разрешать цепочку в observe, строки 564–590, но screen читает прямого child.
+
+**Сценарий:** две активные screen-группы на части января; третья объединяет интервалы.
+Screen вытесненной группы сообщает succeeded, хотя successor ещё running; его
+последующая ошибка также теряется.
+
+**Воспроизведение настоящего status с mocked persistence:**
+
+```text
+screenState=succeeded
+resource.availability=missing
+resource.sync.state=running
+actualOperationState=running
+```
+
+SQLite bridge покрыт [operations-sync e2e, 455–474](test/tbank-operations-sync.e2e-spec.ts),
+но существующая проверка наблюдает operations.observe, а не screen status.
+
+**Минимальное действие:** разрешать operations successors через существующего
+владельца перед агрегацией screen state/progress. Не копировать второй алгоритм
+разрешения цепочки в screen service.
+
+**Приёмка:** configured HTTP + SQLite bridge; задержанный successor → running,
+затем успех → succeeded или отказ → failed; progress согласован, чужая revision
+не видна. **Риск:** fencing, цепочки successors и корректный подсчёт progress.
+
+### A05. Force обновления свечей теряется при coalescing
+
+**Приоритет:** средний. **Уверенность:** высокая.
+
+**Места:** [CandleService.request/load, 326–365](src/modules/investments/instruments/application/candle.service.ts),
+[CandleRepository.reserve, 76–82](src/modules/investments/instruments/infrastructure/candle.repository.ts).
+Публичный caller: [TbankSyncService, 288–306](src/modules/investments/tbank-sync/tbank-sync.service.ts)
+вызывает candles.request с force=true; candleRange необязателен, ключ может совпасть
+с ordinary GET/prefetch.
+
+При launch=false service возвращает существующий id без сохранения новых force/priority.
+При присоединении cross-user observer требования также не повышаются.
+
+**Воспроизведение настоящего класса с mocked repository/upstream:** январь покрыт,
+ordinary period=all заблокирован перед загрузкой detail, затем приходит force all.
+После release единственный RPC идёт от `2026-02-01T00:00:00.000Z` до
+`2026-02-02T12:00:00.000Z`; январь не перечитан. Исправленные исторические значения
+остаются прежними. Existing candle suite отдельно проверяет force и coalescing.
+
+**Минимальное действие:** сохранить forced требование и выполнить полную reconciliation.
+Если gap-план уже начат, безопасно перепланировать или выполнить следующую forced
+попытку. Простого `force ||= true` после публикации первых окон недостаточно.
+Аналог повышения требований есть в CatalogDiscoveryService, но его алгоритм нельзя
+механически переносить на staged свечи.
+
+**Приёмка:** ordinary load + force того же scope действительно обновляют уже
+закрытую свечу. Возвращённый work ID завершается только после выполнения forced
+требования с актуальным диапазоном запроса. Проверить join до запуска и после
+публикации первого обычного окна, включая observer другого пользователя;
+экранный запрос получает экранный приоритет. Ошибка следующего forced окна сохраняет
+прежнюю историю и timestamps; user/revision fencing сохраняется.
+Proof атомарности — существующая SQLite boundary.
+
+**Риск:** высокий риск неверного локального исправления из-за staged/atomic publication.
+
+### A06. Payout snapshot замораживает positionIsStale
+
+**Приоритет:** средний. **Уверенность:** высокая.
+
+**Место:** [ForecastRepository.resolve, 132–137](src/modules/investments/portfolio/infrastructure/forecast.repository.ts).
+**Потребители:** [StockIncomeService, 67–87 и 161–163](src/modules/investments/instruments/stocks/application/stock-income.service.ts),
+[BondIncomeService, 180–182](src/modules/investments/instruments/bonds/application/bond-income.service.ts).
+
+Истечение 60-секундного portfolio TTL меняет isStale, но не source revision/timestamps.
+Repository возвращает прежний payload вместо нового candidate. Возможны одновременно
+`meta.freshness: stale` и `data.positionIsStale: false`.
+
+**Воспроизведение:** настоящий repository с mocked transaction; candidate false,
+затем true при тех же версиях → повторный результат false, всего одна запись.
+Pure payout tests принимают stale input, но не проверяют aging persisted forecast.
+
+**Минимальное действие:** вычислять возраст сохранённой позиции при выдаче по её
+positionAt и действующей freshness policy. Учитывать именно позицию сохранённого
+fallback, а не случайно подставлять свежесть более нового несовместимого портфеля.
+Не сравнивать весь candidate без разбора: текущий calculatedAt у events вызовет
+запись на каждом чтении. Не менять financial revision только из-за хода времени.
+
+**Приёмка:** controllable clock, TTL истёк без изменения источников, sync=observe:
+stale=true, суммы и source timestamps прежние, новых RPC нет; fallback остаётся
+согласованным. **Риск:** смешение возраста сохранённой и текущей позиции.
+
+### A07. Timestamp операций расходится между persistence и wire
+
+**Приоритет:** средний. **Уверенность:** высокая.
+
+**Место:** [brokerage-operation.mapper, 85–90](src/modules/investments/operations/infrastructure/brokerage-operation.mapper.ts)
+игнорирует nanos; [repository, 653–657 и publish](src/modules/investments/operations/infrastructure/brokerage-operations.repository.ts)
+учитывает миллисекунды. Consumers mapper: BrokerageOperationsService, обычный ledger
+и income reads (строки 359 и 619 на базе аудита).
+
+**Воспроизведение:** seconds=1768000000, nanos=600000000 → persistence
+`2026-01-09T23:06:40.600Z`, wire `2026-01-09T23:06:40.000Z`.
+Запрос from=`…40.500Z` возвращает строку с видимым временем раньше from.
+Existing mapper specs проверяют money/quantity, но не это соответствие.
+
+**Минимальное действие:** согласовать конвертацию protobuf timestamp; при возможности
+использовать уже сохранённый occurredAt для wire. Предотвратить дальнейшее расхождение
+реализаций без создания универсальной библиотеки дат.
+
+**Приёмка:** subsecond mapper case и HTTP boundary внутри секунды; порядок/cursor,
+обычный ledger и income используют согласованное время. **Риск:** исправляется
+публичное значение timestamp; формат и точность Money сохраняются.
+
+### A08. Configured validation response теряет ошибки полей
+
+**Приоритет:** средний. **Уверенность:** высокая.
+
+**Места:** [configureApp, 29](src/main.ts),
+[HttpExceptionFilter, 44–48 и 70–78](src/common/filters/http-exception.filter.ts).
+ValidationPipe выдаёт message:string[], filter приводит его к ValidationError[]
+и ищет constraints. children вложенных ошибок также не обходятся.
+
+**Configured HTTP reproduction:** invalid email и отсутствующий password:
+
+```json
+{"status":400,"code":"VALIDATION_ERROR","errors":[]}
+```
+
+Ожидаемый [HTTP contract](.ai/conventions/http-api.md) требует pointer/detail.
+Conventions уже фиксируют это известное расхождение. OpenAPI parity проверяет
+schema, но не наблюдаемый response pipeline.
+
+**Минимальное действие:** согласовать exceptionFactory и filter, сформировать
+структурированные ошибки, включая вложенные поля, без target/value исходного DTO.
+
+**Приёмка:** реальные requests credentials и nested Money дают непустые корректные
+pointer/detail; status/code/content-type сохраняются; неизвестные исключения
+по-прежнему безопасны. Проверить согласование с A02 и публичной metadata.
+**Риск:** public error shape и корректность вложенных путей.
+
+### A09. Planner зависит от service barrel и образует runtime import cycle
+
+**Приоритет:** средний. **Уверенность:** высокая.
+
+**Места:** [investment-sync-plan, 3–6](src/modules/investments/investment-sync-plan.ts)
+→ [operations.api](src/modules/investments/operations/operations.api.ts)
+→ operations services → investment-sync-plan.
+
+Алгоритму нужны interval rules, но barrel загружает services, TbankClient и Prisma.
+[Planner spec, строка 1](src/modules/investments/investment-sync-plan.spec.ts) уже
+вынужден mock Prisma. Это доказанная стоимость связности; production crash из-за
+цикла не обнаружен. Type-only цикл T-Bank records — отдельный безвредный случай.
+
+**Минимальное действие:** предоставить interval rules чистый публичный вход,
+аналогичный разрешённому integrations/tbank/decimal.ts; service API оставить отдельно.
+Не заменять cycle на forwardRef и не вводить новый DI слой.
+
+**Приёмка:** planner импортируется/тестируется без Prisma mock; cycle устранён,
+interval semantics и DI initialization сохранены. **Риск:** низкий, import/export surface.
+
+### A10. Неиспользуемый legacy T-Bank access flow
+
+**Приоритет:** низкий. **Уверенность:** высокая.
+
+**Место:** [TbankAccessService, 255–330](src/integrations/tbank/tbank-access.service.ts).
+listSupportedAccounts/withSupportedAccounts/withConnection/withAccount/
+withAccountForConnection/private connection вызываются только внутри собственной
+цепочки и tests. Проверены production consumers, DI и decorators.
+
+Legacy flow поддерживает generation=hash(ciphertext), тогда как живой persisted
+flow использует DB revision, local и tokenForAttempt. Поддерживаются две модели
+без production-потребности; около 76 строк, context types и TbankClient dependency.
+
+**Минимальное действие:** повторно проверить callers на актуальном HEAD, удалить
+legacy-цепочку, неиспользуемые context exports и зависимость; отдельно проверить
+оставшихся consumers accessibleTbankAccount до его удаления.
+
+**Приёмка:** нет мёртвой цепочки, живые access/invalid-token/revision/fencing cases
+сохранены. Перенести полезные security assertions, если они были только в удаляемых
+specs. **Риск:** удалить общее правило или полезную проверку вместе с legacy.
+
+## Локальные упрощения
+
+Все пункты: низкий приоритет, высокая уверенность. Перед удалением повторить поиск
+callers; отсутствие production callers в базе аудита не гарантирует его на новом HEAD.
+
+| ID | Место и доказательство | Минимальное действие и приёмка |
+| --- | --- | --- |
+| C01 | [portfolio.service, 515–522](src/modules/investments/portfolio/application/portfolio.service.ts): локальный decimalFromString повторяет common parser без validation; callers position/value | Импортировать существующий common owner; удалить дубликат. Exact-money tests и typecheck. Текущая ошибка сумм не доказана; проверить допустимые входы. |
+| C02 | [tbank.api](src/integrations/tbank/tbank.api.ts): TbankSyncAttempt импортируют напрямую семь внешних файлов sync/instruments; enrichment также обходит API для market types | Экспортировать используемые типы, перенаправить imports через API. TbankCoupon уже экспортируется. Typecheck и поиск обходов; runtime-риск минимален. |
+| C03 | [auth.service, 190–192](src/modules/auth/application/auth.service.ts): normalizeEmail возвращает аргумент; register/login вызывают его, реальная нормализация в CredentialsDto | Удалить no-op, сохранить DTO transform. Existing HTTP case/whitespace tests; дополнительную нормализацию без необходимости не вводить. |
+| C04 | [bank-card.calculations, 56–76](src/modules/banking/bank-cards/domain/bank-card.calculations.ts): string period используется только tests; production summary передаёт from/to | Сузить API до рабочего диапазона; перевести полезные unit cases. Проверить границы месяца/range. |
+| C05 | [instrument-market, 39–51](src/modules/investments/instruments/application/instrument-market.ts): optional без consumers; [stock-position wrapper](src/modules/investments/instruments/stocks/application/stock-position.ts) нужен только своему spec | Удалить optional, перенаправить полезные wrapper tests на instrumentPosition. Сохранить fractional/mixed/offset holdings cases. |
+| C06 | [portfolio.api, 2](src/modules/investments/portfolio/portfolio.api.ts): totalsByCurrency не имеет внешнего production consumer; внутренний использует mapper напрямую | Удалить только лишний export, mapper сохранить; typecheck. |
+| C07 | [auth.controller.spec, 9–20](src/modules/auth/presentation/auth.controller.spec.ts): проверяет HTTP_CODE_METADATA через prototype; те же 200 проверяются configured HTTP suite | Удалить дублирующий wiring spec только при сохранении реальных HTTP status/cookie assertions. |
+
+## Карта ответственности и проверенные сценарии
+
+| Область / владелец | Интерфейс и consumers | Состояние, зависимости, инварианты и эффекты |
+| --- | --- | --- |
+| App/config/common/Prisma | Composition root, configureApp, Money/decimal, logging | Env validation, HTTP pipeline, DB lifecycle, request context; общая арифметика без Nest/Prisma |
+| Auth | Auth HTTP; guard/AccessPayload API для protected controllers | User/Session, bcrypt/JWT, refresh hash/CAS; cookies у controller |
+| Bank cards/operations/categories | BankCardsController → профильные services | Ownership, archive/version/replay/tombstones; refund budget и перевод в общей transaction boundary |
+| Bank summary | Controller → use case → repository → pure calculation | Согласованное чтение и BigInt-сводка по периоду |
+| Brokerage accounts | HTTP/read API для screen → service → PortfolioService | Собственной persistence нет; missing membership отличается от confirmed empty |
+| Portfolio/forecast | HTTP и API для instruments/events/accounts | Private user/revision/account snapshots; mapping/decimal; aggregate completeness; atomic dependency version checks |
+| Operations | HTTP/API для income/screen | Local journal, signed cursor binding; durable work/staging, intervals, recovery, atomic reconciliation |
+| Income analytics | HTTP/read API → Operations API | Period roles/completeness, grouping и точные signed totals по валютам; своей DB нет |
+| Upcoming events | HTTP/read API → portfolio/calendars → forecast | Events по positions; missing calendar не равен пустому; redemption исключён из income totals |
+| Catalog discovery/enrichment | Stock/bond services и public source APIs | Shared identity/aliases/source rows; private work, TTL, batching, coalescing и generation-fenced publication |
+| Candles | Market services/screen → CandleService/Repository | Shared candles/coverage; mutable tail, gaps, windows, очередь и staged force replacement |
+| Stock/bond position/income | Controllers → application services | UID/type matching, exact weighted cost, mixed currencies, payout estimates; Portfolio/Catalog/Forecast APIs |
+| T-Bank connection | Guarded GET/PUT/DELETE | Проверка токена до replacement, AES-GCM, новая revision/cascade; failed validation сохраняет connection |
+| T-Bank client/access/membership/metadata | Integration API для business modules | gRPC/TLS, единые limiter/retry/deadline; credentials, account access, membership и publication fencing |
+| Screen sync | POST descriptor / GET status | Orchestration через APIs; durable children/attempts; passive observation |
+| MOEX/NCR | Integration APIs → enrichment | ISS parser/pagination; NCR strict registry parser/exact ISIN/shared cache |
+
+Прослежены auth/session flows; создание/изменение карт, операций, переводов,
+возвратов и summary; ledger→sync→staging→publication; portfolio→mapping→snapshot;
+payouts/events→forecast; catalog/candles и screen orchestration.
+
+Повторной регистрации владельцев caches/queues и циклов Nest modules не обнаружено.
+InstrumentSourcesModule позволяет portfolio пользоваться источниками без DI-цикла
+с InstrumentsModule. Type-only цикл T-Bank records не является finding.
+
+## Размеры production-файлов
+
+Количество строк включает comments/blank lines. Размер — основание для чтения,
+а не самостоятельный дефект. Обязательные splits не обоснованы.
+
+| Файл | Строк | Решение и причина |
+| --- | ---: | --- |
+| [brokerage-operations.repository](src/modules/investments/operations/infrastructure/brokerage-operations.repository.ts) | 924 | Оставить: overlap groups, staging, recovery и publication держат общий transactional invariant |
+| [catalog-enrichment.service](src/modules/investments/instruments/application/catalog-enrichment.service.ts) | 665 | Упростить локально: protocol boundary/imports; сохранить producers, batching, completions вместе |
+| [brokerage-operations.service](src/modules/investments/operations/application/brokerage-operations.service.ts) | 636 | Оставить: ledger/income имеют различную completeness; generic builder добавит скрытые режимы |
+| [tbank-sync.service](src/modules/investments/tbank-sync/tbank-sync.service.ts) | 595 | Упростить: разрешение successors вернуть operations owner, generic job framework не нужен |
+| [tbank.client](src/integrations/tbank/tbank.client.ts) | 560 | Оставить: records/RPC methods и единый limiter/retry owner |
+| [portfolio.service](src/modules/investments/portfolio/application/portfolio.service.ts) | 522 | Упростить: удалить duplicate parser, scheduling state не разрывать |
+| [candle.service](src/modules/investments/instruments/application/candle.service.ts) | 481 | Оставить: исправить force join, сохранить queue/publication invariant |
+| [catalog-discovery.repository](src/modules/investments/instruments/infrastructure/catalog-discovery.repository.ts) | 480 | Оставить: identity/aliases/source publication и CAS связны |
+| [catalog-discovery.service](src/modules/investments/instruments/application/catalog-discovery.service.ts) | 390 | Оставить: search/detail и producer lifecycle имеют одного owner |
+| [bank-operations.service](src/modules/banking/bank-cards/application/bank-operations.service.ts) | 343 | Оставить: разрыв validation/refund/transfer writes повышает риск |
+| [tbank-access.service](src/integrations/tbank/tbank-access.service.ts) | 331 | Упростить удалением legacy flow |
+| [investment-sync-plan](src/modules/investments/investment-sync-plan.ts) | 327 | Упростить зависимость: убрать service barrel из алгоритма |
+| [instrument-metadata.repository](src/integrations/tbank/instrument-metadata.repository.ts) | 320 | Оставить: identity, batching и publication согласованы |
+| [income-analytics.service](src/modules/investments/income/income-analytics.service.ts) | 318 | Оставить: связные projections, выгода дополнительных моделей не доказана |
+| [candle.repository](src/modules/investments/instruments/infrastructure/candle.repository.ts) | 306 | Оставить: reconciliation, coverage, fencing и stage cleanup |
+| [upcoming-events.service](src/modules/investments/upcoming-events/upcoming-events.service.ts) | 297 | Оставить: один сценарий, основной дефект у MOEX boundary |
+| [brokerage-operations-sync.service](src/modules/investments/operations/application/brokerage-operations-sync.service.ts) | 294 | Оставить: связный владелец durable work execution |
+
+Отдельные категории: 37 unit specs / 3319 строк; 21 HTTP/SQLite specs / 7878 строк;
+10 test support/fixtures / 1993 строки; 6 vendor proto / 3588 строк;
+5 SQL migrations / 345 строк. Generated Prisma и build artifacts не ранжировались.
+
+## Удачные решения, которые требуется сохранить
+
+- BigInt/decimal и string Money; разные валюты не складываются неявно.
+- Refresh CAS, ownership queries, версии операций, replay fingerprints/tombstones.
+- Network calls отделены от DB transactions.
+- Revision/attempt fencing, late-result discard, staging перед force reconciliation.
+- Missing/partial/confirmed empty/saved complete различаются явно.
+- Concrete providers, компактные плоские модули и разрешённый прямой Prisma
+  в связных CRUD/transaction services не являются автоматическими дефектами.
+- SQLite behavior tests проверяют реальные денежные границы, races и rollback.
+
+## Выполненные проверки и пределы доказательства
+
+Перед успешными Node-командами загружалась `~/.nvm/nvm.sh`, затем `nvm use --silent`.
+Первый вызов nvm без загрузки shell function завершился command not found;
+после загрузки проверок это ограничение не осталось.
+
+| Команда / проверка | Результат аудита |
+| --- | --- |
+| git status, git rev-parse HEAD, git diff --check | Чистое дерево, неизменный commit, diff errors отсутствуют |
+| npm run lint | Успешно |
+| npm run typecheck:app; npm run typecheck:test | Успешно |
+| npm test -- --runInBand | 37 suites / 200 tests passed |
+| Build в npm run test:e2e | Prisma generation и Nest build успешны |
+| Полный e2e в sandbox | listen EPERM на localhost; не засчитан |
+| LOG_LEVEL=error node test/sqlite.cjs --all, с разрешением localhost | all-accounts: 18 passed; auth-suite затем завершилась native SIGABRT |
+| node test/sqlite.cjs tbank-screen-sync.e2e-spec.ts tbank-operations-persistence.e2e-spec.ts tbank-candles-persistence.e2e-spec.ts tbank-metadata-persistence.e2e-spec.ts tbank-local-reads.e2e-spec.ts openapi-contract.e2e-spec.ts | Первые три: 27 + 5 + 9 passed; metadata native abort; последующие не достигнуты |
+| node test/sqlite.cjs openapi-contract.e2e-spec.ts, отдельно | 3 tests passed |
+| Inline reproductions | Подтверждены описанные случаи; validation/logging через configureApp, остальные с указанными mocked boundaries |
+
+Native abort произошёл в `node::RemoveEnvironmentCleanupHook` / `better_sqlite3.node`
+на Node 24.21.0. Причина не установлена; связывать его с конкретной source-находкой
+нельзя. Полный e2e gate не подтверждён. При реализации сначала повторить в штатном
+окружении; если проблема остаётся, диагностировать отдельно и явно сообщить,
+не отключая падающие suites и не выдавая неполную проверку за зелёную.
+
+Логи текущей сессии (временные файлы, могут исчезнуть):
+`/tmp/wealthledger-audit-e2e.log`, `/tmp/wealthledger-audit-targeted-e2e.log`,
+`/tmp/wealthledger-audit-openapi.log`. Документ не зависит от сохранности этих файлов.
+
+**Проверено:** все production-модули, composition/API, основные consumers,
+значимые flows, связанные tests кандидатов. Все production auth/banking,
+integrations/sync/operations и остальные investment slices прочитаны.
+
+**Частично проверено:** весь набор HTTP fixtures и integration suites не проходил
+одинаково глубокий построчный аудит; реальное выполнение e2e ограничено указанным
+native abort. Schema прочитана; история миграций не проходила полный compatibility audit.
+
+**Не проверено:** clean npm ci, полный verify с coverage как единая команда,
+durability/restart/backup, container/deployment, production performance,
+реальные внешние API и полная сверка vendor proto с upstream.
+
+### Финальная проверка реализации
+
+Использовать актуальные scripts/conventions backend. На базе аудита для code changes
+требуются npm ci, npm run verify, relevant SQLite/HTTP checks; для этих HTTP изменений
+также OpenAPI generation/parity. Полный npm run test:e2e нужен для итоговой проверки
+совокупных изменений. Перед Node — nvm use --silent.
+
+Автоисправления lint/format не являются доказательством. Не запускать миграции,
+reset/drop или tests на пользовательской БД. Штатный SQLite runner создаёт временные
+базы и защищает от использования внешнего DATABASE_URL.
+
+По завершении повторить routing по staged/unstaged/new files, выполнить Boy Scout
+и semantic review: callers, owners, money/access/atomicity/error contracts,
+generation/cache/async lifecycle. Указать точные команды, outcomes и ограничения.
+
+## Неподтверждённые гипотезы — вне scope исправлений
+
+- Logout/refresh interleaving и browser cookie overwrite требуют явных ordering
+  semantics и отдельного HTTP/browser proof.
+- N+1 в карточных views виден, но измеренная latency/timeout проблема не установлена.
+- JSON casts внутренних сохранённых payload сами по себе не доказывают небезопасную boundary.
+- Cash/accrued-interest valuation: локального контракта недостаточно для обвинения в ошибке.
+- Native SQLite abort требует отдельной диагностики runtime/dependency lifecycle.
+
+## Статус исправлений
+
+Начало исправлений: HEAD `516e43203eb3fee8e6a0c7018be2fee11f1b900c`,
+ветка `codex/investment-contracts`; `git status --short`: только
+`?? BACKEND_AUDIT.md`, staged/unstaged tracked changes отсутствовали.
+Исходные разделы аудита сохранены. `npm ci` успешно: 1065 packages, 44s;
+manifest/lockfile не менялись. Перед Node-командами загружается `~/.nvm/nvm.sh`
+и выполняется `nvm use --silent`.
+
+Все A01–A10 и C01–C07 повторно подтверждены и реализованы в порядке пакетов.
+Статусы ниже разделяют готовность исправления и полноту проверки: native abort
+не засчитывается как успешный behavioral test. Неподтвердившихся и уже исправленных
+на исходном HEAD пунктов не обнаружено.
+
+| ID | Статус | Изменение / доказательство | Проверки и ограничения |
+| --- | --- | --- | --- |
+| A01 | Исправлено и проверено | Logout подавляет только JWT verification failure; refresh удаляет cookie только при UnauthorizedException. Configured HTTP red: logout 204 вместо 500, refresh удалил cookie при отказе БД. | `node test/sqlite.cjs app.e2e-spec.ts`: regression воспроизведена на временной SQLite; macOS green повтор и первый полный e2e столкнулись с native SIGABRT. Итоговый Linux e2e: auth 12/12 passed, включая revocation failure и сохранение cookie для retry. |
+| A02 | Исправлено и проверено | Удалены raw stack и его неиспользуемый transport/allowlist; regression проверяет multiline synthetic secret в конечном Pino payload и correlation. | Targeted filter/logging: 3 suites / 4 tests passed, unit red → green; macOS configured HTTP runner завершился native SIGABRT; итоговый Linux auth 12/12 passed, включая настоящий filter → middleware → Pino payload. |
+| A03 | Исправлено и проверено | MoexClient отклоняет отсутствующий/повреждённый block, неверную ширину row, malformed/nonprogressing cursor. Пустые блоки и 404 сохранены. | Unit red 12 failures → 21 passed; `node test/sqlite.cjs upcoming-events.e2e-spec.ts`: downstream red 2 failures → 18 passed, настоящий client + mock fetch сохраняют calendar/forecast payload/revisions/timestamps. Typecheck и scoped lint passed. |
+| A04 | Исправлено и проверено | Screen status разрешает superseded child через operations.observe перед агрегацией state/progress; attempt/revision fencing сохранён. | `node test/sqlite.cjs tbank-screen-sync.e2e-spec.ts`: HTTP/SQLite red succeeded вместо running → 29 passed; successor success/failure, progress, чужой user и удалённая revision. |
+| A05 | Исправлено и проверено | Каждый join повышает force/priority при более сильном требовании; идентичный join не меняет updatedAt. Load фиксирует force/now на проход, при новой forced потребности выполняет полную reconciliation. Финальная публикация и observers сериализованы с reservations; screen priority=0. | Service unit red → green (полный исторический диапазон и более поздний now); `node test/sqlite.cjs tbank-candles-persistence.e2e-spec.ts`: 14 passed на финальном коде, same/cross-user join до загрузки и после обычного окна, rollback второго forced окна, timestamps и fencing. Native abort в первом финальном запуске; единственный повтор без изменений прошёл. |
+| A06 | Исправлено и проверено | ForecastService вычисляет возвращаемый positionIsStale из сохранённого positionAt через существующую portfolio TTL policy; не меняет финансовый snapshot. | `node test/sqlite.cjs upcoming-events.e2e-spec.ts`: red stock/bond false на TTL → 20 passed; TTL−1/TTL, observe без RPC, прежние суммы/revisions/timestamps, fallback при несовместимом свежем candidate. Review дополнительно воспроизвёл meta.freshness=fresh для старого fallback (2 red); freshForMs теперь учитывает сохранённый stale flag, repeat 20 passed, stateVersion рассчитывается штатно. |
+| A07 | Исправлено и проверено | Одна operationTimestamp conversion у mapper для stage/publish; ledger/income wire используют сохранённый occurredAt. Missing seconds по-прежнему отклоняется. | Unit red .600→.000 → 9 passed; `node test/sqlite.cjs tbank-ledger-local.e2e-spec.ts`: HTTP red → 11 passed (from=.500, cursor .800/.600, income timestamp/exact total). Оба typecheck/lint passed. На macOS operations-persistence завершилась native SIGABRT и не засчитана. Итоговый Linux полный e2e: ledger 11/11 и operations-persistence 5/5 passed. |
+| A08 | Исправлено и проверено | Global/screen ValidationPipe сохраняют structured errors без target/value; filter обходит children и экранирует JSON pointers. Удалён descriptorErrors; OpenAPI errors.items согласован с object shape. | Nested Money HTTP red errors:[] → bank22 / screen29 passed; escaped pointer и отсутствие дублей/secret проверены. Unit7 и scoped lint passed. Metadata red items:string → финальный OpenAPI parity 3 passed. На macOS auth suite native SIGABRT; итоговый Linux auth 12/12 passed, включая credential field errors без input leak. |
+| A09 | Исправлено и проверено | Planner импортирует существующий чистый operations/domain/operations-sync-plan как явно документированный публичный вход; service barrel больше не экспортирует runtime interval rules. | Planner и CandleService tests выполняются без Prisma mock; targeted пакет 7 suites / 49 tests passed. DI подтверждается configured HTTP и итоговым build. |
+| A10 | Исправлено и проверено | Удалены шесть legacy methods, context types, TbankClient constructor dependency и accessibleTbankAccount без живых callers; legacy-only spec удалён. | Поиск src/test не находит legacy symbols; 5 unit suites / 11 tests, оба typecheck, scoped lint/build; connection HTTP/SQLite4 passed: missing/invalid/unsupported/cross-user, replacement/deletion, revision/fencing. Token error/crypto assertions сохранены. MacOS metadata-persistence15 passed, operations-sync/catalog-discovery native SIGABRT. Итоговый Linux e2e: metadata15, operations-sync17 и catalog-discovery10 passed. |
+| C01 | Исправлено и проверено | PortfolioService использует common decimalFromString; локальный parser удалён. Входы из money/formatDecimal уже canonical; текущая ошибка сумм не заявляется. | Exact-money portfolio tests в targeted49 passed; итоговые types/verify ниже. |
+| C02 | Исправлено и проверено | TbankSyncAttempt/TbankLastPrice экспортируются type-only через tbank.api; семь production consumers используют API, TbankCoupon переиспользован. | Поиск прямых imports tbank-access.service/tbank-market.types в src/modules пуст; оба typecheck и scoped lint passed. |
+| C03 | Исправлено и проверено | Удалён no-op normalizeEmail; CredentialsDto transform trim/lowercase сохранён. | Auth unit passed; реальные case/whitespace HTTP assertions сохранены. После macOS native SIGABRT полный Linux auth gate прошёл: 12/12. |
+| C04 | Исправлено и проверено | bankSummary принимает только рабочий диапазон from/to; строковый month overload удалён, полезные unit cases переведены на диапазоны. | Targeted49 passed: month start/end, outside range, signed64/BigInt суммы и refunds. |
+| C05 | Исправлено и проверено | Удалены optional без callers и stockPosition wrapper; spec перенесён к instrumentPosition, проверяет напрямую владельца. | Targeted49 passed: fractional/large quantity, weighted costs, mixed/unknown currencies, no position и offset long/short. |
+| C06 | Исправлено и проверено | Удалён неиспользуемый внешний totalsByCurrency export; живой mapper и внутренний caller сохранены. | Поиск imports подтверждает единственный внутренний caller; exact-money targeted tests passed, итоговый typecheck ниже. |
+| C07 | Исправлено и проверено | Удалён HTTP_CODE_METADATA wiring spec; реальные register/login/refresh status200 и logout/cookie assertions сохранены в app.e2e. | Проверены callers/оставшиеся HTTP assertions; полный Linux auth gate прошёл: 12/12. Предыдущий macOS native SIGABRT остаётся отдельным ограничением среды. |
+
+### Gates первого прогона (macOS)
+
+Все команды выполнены из backend на Node `v24.21.0` после `nvm use --silent`.
+Проверки данных использовали штатный runner, fresh temporary SQLite и штатные
+migrations; рабочая БД не использовалась. Для localhost/Prisma cache запуски
+получили разрешение вне sandbox; native abort повторялся и там.
+
+| Команда | Итог |
+| --- | --- |
+| `npm ci` | PASS; manifest и lockfile без изменений. |
+| `npm run verify` | PASS: lint, app/test typecheck, 36 suites / 209 unit tests с coverage, build. |
+| `npm run openapi:generate` | PASS; актуальный игнорируемый `openapi.json` сформирован. |
+| `npm run test:openapi-contract` | PASS: 1 suite / 3 tests, включая object shape validation errors. |
+| `npx prisma validate` | PASS. Schema и migrations не менялись. |
+| `npm run test:durability -- /tmp/wealthledger-fix-baseline-current-runtime-fjftdF` | PASS. Baseline `0862d56`, до последней T-Bank migration, отдельно установлен и собран на текущем Node; результат `/var/folders/j_/h2ft23gd3qq35ps3v5bcftfm0000gn/T/wealthledger-bank-durability-SIeCq0`. |
+| `LOG_LEVEL=error npm run test:e2e` | INCOMPLETE, exit 1: all-accounts 18/18 passed, затем app.e2e native SIGABRT до Jest summary. Остальные suites общий gate не выполнил. |
+| `node test/sqlite.cjs tbank-candles-persistence.e2e-spec.ts` | PASS на финальном коде: 14/14 после одного native abort и повтора без edits. |
+| `node test/sqlite.cjs tbank-metadata-persistence.e2e-spec.ts` | PASS на финальном коде: 15/15. |
+| `node test/sqlite.cjs tbank-operations-sync.e2e-spec.ts` | INCOMPLETE: native SIGABRT до summary. |
+| `node test/sqlite.cjs tbank-operations-persistence.e2e-spec.ts` | INCOMPLETE: native SIGABRT до summary. |
+| `node test/sqlite.cjs tbank-catalog-discovery.e2e-spec.ts` | INCOMPLETE: native SIGABRT до summary. |
+| `git diff --check` | PASS. |
+
+Логи итоговых gates: `/tmp/wealthledger-fix-verify.log`,
+`/tmp/wealthledger-fix-openapi-generate.log`, `/tmp/wealthledger-fix-openapi-contract.log`,
+`/tmp/wealthledger-fix-prisma-validate.log`, `/tmp/wealthledger-fix-durability.log`,
+`/tmp/wealthledger-fix-final-e2e.log`. Дополнительные SQLite логи:
+`/tmp/wealthledger-fix-a05-latest-sqlite-retry.log`,
+`/tmp/wealthledger-fix-final-metadata-persistence.log`,
+`/tmp/wealthledger-final-operations-sync.log`,
+`/tmp/wealthledger-final-operations-persistence.log`,
+`/tmp/wealthledger-fix-final-catalog-discovery.log`.
+
+Native failure: assertion `(env) != nullptr` в `node::RemoveEnvironmentCleanupHook`,
+stack содержит destructor из `better_sqlite3.node`. Это конкретное ограничение
+текущего native runtime, уже наблюдавшееся при исходном аудите; его первопричина
+в рамках исправлений не установлена. Тесты не отключались, runner/dependencies
+не изменялись. Эти macOS запуски остаются INCOMPLETE. Полный Linux прогон ниже
+закрыл e2e gate и auth/operations/catalog acceptance; локальный native abort
+на macOS при этом не исправлен.
+
+### Повторная полная проверка (Linux, 2026-09-27)
+
+**PASS: 21 e2e suites / 262 tests, exit 0**, ни одного skipped/disabled test.
+Выполнена вся штатная `npm run test:e2e`: build и `node test/sqlite.cjs --all`.
+Каждая suite получила отдельную temporary SQLite со всеми пятью migrations.
+Закрыты прежде неполные auth12, operations-persistence5, operations-sync17,
+catalog-discovery10; также прошли candles14, forecast/upcoming20, screen29,
+OpenAPI3 и большой read-baseline с 300 000 операций / 1 000 000 свечей.
+
+Перед повтором зафиксирован тот же HEAD и hashes всех tracked/untracked files;
+до завершения тестов ни один исходник, тест, config или audit не менялся.
+Поэтому предыдущие `verify` (209 unit tests), OpenAPI и durability сохраняют
+актуальность. В этом повторе изменён только статус данного документа.
+
+MacOS `LOG_LEVEL=error node test/sqlite.cjs app.e2e-spec.ts` снова завершился
+native SIGABRT. Для Linux использован существующий Dockerfile target
+`development`, Node `v24.21.0` (проверен против `.nvmrc`) и неизменённый lockfile:
+SHA-256 `f986979b7922d684fead3a4d32532d11f1e469cec0e35669509343be41cbb2cd`.
+Image `wealthledger-backend:audit-verification-20260927`,
+ID `sha256:69264cf3dba23566d99fded450104bbe56f92755604e88232beb97825155ae73`.
+Сборка выполнила `npm ci`; зависимости и runner не подменялись. Test/scripts
+подключались read-only, внешняя сеть отключена, host ports не публиковались;
+одноразовый контейнер удалён после завершения, рабочая БД не подключалась.
+
+Команды воспроизведения из backend (на host предварительно `source ~/.nvm/nvm.sh`
+и `nvm use --silent`; внутри image закреплён тот же Node):
+
+```bash
+docker build --target development --tag wealthledger-backend:audit-verification-20260927 .
+docker run --rm --network none \
+  --mount type=bind,source=/Users/ksv741/Project/vibe/WealthLedger/backend/test,target=/app/test,readonly \
+  --mount type=bind,source=/Users/ksv741/Project/vibe/WealthLedger/backend/scripts,target=/app/scripts,readonly \
+  -e LOG_LEVEL=error wealthledger-backend:audit-verification-20260927 npm run test:e2e
+```
+
+Логи: `/tmp/wealthledger-recheck-auth.log` (macOS abort),
+`/tmp/wealthledger-recheck-linux-build.log` (Linux image build),
+`/tmp/wealthledger-recheck-linux-e2e.log` (полный PASS).
+
+Read-only диагностика локализовала macOS crash в GC finalizer Statement/Database
+вложенного `better-sqlite3 12.11.1`, используемого Prisma adapter 7.10.0.
+Node 24.21 ObjectWrap destructor вызывает RemoveEnvironmentCleanupHook, который
+падает на `env != nullptr`. Связь с Jest VM context и происхождением native
+binary остаётся гипотезой, а не доказанной первопричиной. Ошибка application
+lifecycle не обнаружена: close/disconnect ожидаются. Linux PASS доказывает
+поведение backend в этом окружении, но не устранение native crash на macOS.
+
+### Semantic / Boy Scout review и состояние дерева
+
+Повторный routing по staged/unstaged/new files активировал Architecture,
+HTTP/errors, Data, Testing, Security, Integrations и Observability. Проверены
+owners/callers и связанная документация; независимый review охватил auth/logging,
+candle coalescing/publication, forecast fallback и cleanup. После устранения
+найденной при review stale metadata у старого forecast fallback оставшихся
+semantic замечаний нет. Проверены точная денежная арифметика, ownership,
+transactions, generation fencing, сохранение cache/pending promises и отсутствие
+новых дублирующих helpers.
+
+На момент завершения проверки, до запроса публикации, HEAD оставался
+`516e43203eb3fee8e6a0c7018be2fee11f1b900c`, ветка
+`codex/investment-contracts`; staged files отсутствуют. Все изменения локальные,
+без commit/push/PR. Новые untracked files: исходный `BACKEND_AUDIT.md`,
+`src/modules/investments/instruments/application/candle.service.spec.ts` и
+`src/modules/investments/instruments/application/instrument-position.spec.ts`.
+Остальные изменения — tracked source/tests и три связанных convention-файла.
+Новые зависимости, scripts, migrations и разделение production-файлов не добавлены.
+Исходный текст до раздела «Статус исправлений» побайтово совпадает со снимком
+`/tmp/wealthledger-backend-audit-before-fixes.md`.
+
+### Подготовка публикации
+
+После успешной полной проверки пользователь разрешил commit, PR и merge.
+Ветка публикации — `codex/backend-audit-fixes` от актуального `origin/develop`
+`5d3835e`; его tree совпадает с исходным HEAD проверки, поэтому исходники и
+результаты gates не изменились. Pre-commit review не обнаружил посторонних
+файлов, секретов или незакрытых semantic findings. PR направляется в `develop`;
+merge выполняется после обязательных `verify`, `security`, `commits`.

CHANGELOG.md

@@ -1,5 +1,174 @@
 # Changelog
 
+## [2.3.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v2.2.0...v2.3.0) (2026-10-24)
+
+### Features
+
+* log unhandled errors and pretty dev output (WealthLedger/backend[#120](https://git.personal.ksv741.ru/WealthLedger/backend/issues/120)) ([#126](https://git.personal.ksv741.ru/WealthLedger/backend/issues/126)) ([966a1f7](https://git.personal.ksv741.ru/WealthLedger/backend/commit/966a1f793aa2087cce3e47750e0017f78315bd64))
+
+### Bug Fixes
+
+* persist refresh cookie across browser restarts (WealthLedger/backend[#123](https://git.personal.ksv741.ru/WealthLedger/backend/issues/123)) ([d1f6969](https://git.personal.ksv741.ru/WealthLedger/backend/commit/d1f6969dc7c22ae3cf7396bccdbf0cea2f61db2e))
+
+### Maintenance
+
+* **deps:** update non-major dependencies [#11](https://git.personal.ksv741.ru/WealthLedger/backend/issues/11) ([449cfcd](https://git.personal.ksv741.ru/WealthLedger/backend/commit/449cfcd6c5a91307012bb3a640c8255ba243cbf5))
+
+## [2.2.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v2.1.0...v2.2.0) (2026-10-18)
+
+### Features
+
+* unify income payment cards and drop period comparisons (WealthLedger/main[#33](https://git.personal.ksv741.ru/WealthLedger/backend/issues/33)) ([#83](https://git.personal.ksv741.ru/WealthLedger/backend/issues/83)) ([31b0e15](https://git.personal.ksv741.ru/WealthLedger/backend/commit/31b0e1557978019a9293e5fd3efeee319194cddd))
+
+### Bug Fixes
+
+* align password policy to 8-72 printable ASCII on register (WealthLedger/backend[#60](https://git.personal.ksv741.ru/WealthLedger/backend/issues/60)) ([#109](https://git.personal.ksv741.ru/WealthLedger/backend/issues/109)) ([e03fad6](https://git.personal.ksv741.ru/WealthLedger/backend/commit/e03fad622bfec0fa7e42d536f65e361d319a1ac9))
+* restore screener OpenAPI constraints (WealthLedger/backend[#70](https://git.personal.ksv741.ru/WealthLedger/backend/issues/70)) ([#95](https://git.personal.ksv741.ru/WealthLedger/backend/issues/95)) ([2ad3517](https://git.personal.ksv741.ru/WealthLedger/backend/commit/2ad3517d87bffa8af9285d72fd6f78b96b3eed9f))
+* separate T-Bank RPC network time from queue wait (WealthLedger/backend[#81](https://git.personal.ksv741.ru/WealthLedger/backend/issues/81)) ([#94](https://git.personal.ksv741.ru/WealthLedger/backend/issues/94)) ([0d7839c](https://git.personal.ksv741.ru/WealthLedger/backend/commit/0d7839cf79669768bba55f420ed43304545ac8d9))
+* skip hourly terms overlapped by a long walk (WealthLedger/backend[#54](https://git.personal.ksv741.ru/WealthLedger/backend/issues/54)) ([6975853](https://git.personal.ksv741.ru/WealthLedger/backend/commit/6975853656698b61781ca056f35c0d68e47ea32a))
+* surface durable hourly attempt in accounts and income meta (WealthLedger/backend[#58](https://git.personal.ksv741.ru/WealthLedger/backend/issues/58)) ([14bcb9d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/14bcb9da5ff081710d672d140175d348a03a2fe5))
+* translate permanent invalid-token errors on online entrypoints (WealthLedger/backend[#59](https://git.personal.ksv741.ru/WealthLedger/backend/issues/59)) ([#110](https://git.personal.ksv741.ru/WealthLedger/backend/issues/110)) ([8a6f60d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/8a6f60d9651fc7c474dd9b3690314505e18c4fa0))
+
+### Performance
+
+* batch bank operation page relations (WealthLedger/backend[#68](https://git.personal.ksv741.ru/WealthLedger/backend/issues/68)) ([285dd08](https://git.personal.ksv741.ru/WealthLedger/backend/commit/285dd08472d9acb66fab8d46d511d9ce607b110f))
+* start bond search prices with details (WealthLedger/backend[#71](https://git.personal.ksv741.ru/WealthLedger/backend/issues/71)) ([#89](https://git.personal.ksv741.ru/WealthLedger/backend/issues/89)) ([da2e1d0](https://git.personal.ksv741.ru/WealthLedger/backend/commit/da2e1d0781d23f4ab1c38e7bf3cad2e254d026d5))
+
+### Refactoring
+
+* extract shared public instrument projection ([#69](https://git.personal.ksv741.ru/WealthLedger/backend/issues/69)) ([#84](https://git.personal.ksv741.ru/WealthLedger/backend/issues/84)) ([9b7e5e1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/9b7e5e1215b7c1c5320effb6ba5b2c2a8b0cd604))
+* remove unreachable catalog producer and sync orchestration (WealthLedger/backend[#62](https://git.personal.ksv741.ru/WealthLedger/backend/issues/62)) ([#98](https://git.personal.ksv741.ru/WealthLedger/backend/issues/98)) ([96d4de4](https://git.personal.ksv741.ru/WealthLedger/backend/commit/96d4de4195b105d64ac6ffaf8d3d8aab4142ece4))
+
+### CI
+
+* validate edited PR titles (WealthLedger/backend[#74](https://git.personal.ksv741.ru/WealthLedger/backend/issues/74)) ([bbb5aff](https://git.personal.ksv741.ru/WealthLedger/backend/commit/bbb5afff842720374feecfcd74eea83283e0b2ae))
+
+### Tests
+
+* await portfolio publication done instead of polling ticks (WealthLedger/backend[#63](https://git.personal.ksv741.ru/WealthLedger/backend/issues/63)) ([#103](https://git.personal.ksv741.ru/WealthLedger/backend/issues/103)) ([7023021](https://git.personal.ksv741.ru/WealthLedger/backend/commit/702302126b81335959be2e66b4b5ad38e5806b70))
+* cover auth token, cookie and expiry boundaries (WealthLedger/backend[#61](https://git.personal.ksv741.ru/WealthLedger/backend/issues/61)) ([#113](https://git.personal.ksv741.ru/WealthLedger/backend/issues/113)) ([32622c1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/32622c1dad9649842d8cb78d8e964da33e5df459))
+* isolate HTTP suites from scheduler and bank-card case order (WealthLedger/backend[#65](https://git.personal.ksv741.ru/WealthLedger/backend/issues/65)) ([#100](https://git.personal.ksv741.ru/WealthLedger/backend/issues/100)) ([9e4f9d9](https://git.personal.ksv741.ru/WealthLedger/backend/commit/9e4f9d9cab12aa714449b99280894a521c3514b6))
+* replace late portfolio sleep with started and done barriers (WealthLedger/backend[#63](https://git.personal.ksv741.ru/WealthLedger/backend/issues/63)) ([#101](https://git.personal.ksv741.ru/WealthLedger/backend/issues/101)) ([7bc7d8d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/7bc7d8ddecc6cb9f387d00be68f61eb99d57d6fc))
+* replace metadata sleeps with upstream start barriers (WealthLedger/backend[#63](https://git.personal.ksv741.ru/WealthLedger/backend/issues/63)) ([#102](https://git.personal.ksv741.ru/WealthLedger/backend/issues/102)) ([ec6d9a2](https://git.personal.ksv741.ru/WealthLedger/backend/commit/ec6d9a2639f1845674bf7ce5fc357f2f7b7f5dfb))
+* slim sqlite runner regression workload (WealthLedger/backend[#72](https://git.personal.ksv741.ru/WealthLedger/backend/issues/72)) ([1033d21](https://git.personal.ksv741.ru/WealthLedger/backend/commit/1033d2114e99232a90c5d5c321749a9c6e3fbff0))
+
+### Maintenance
+
+* adopt linear git model in backend docs ([#111](https://git.personal.ksv741.ru/WealthLedger/backend/issues/111)) ([4f485ab](https://git.personal.ksv741.ru/WealthLedger/backend/commit/4f485ab0e9f0f9d52ae446e51966525473948b0e))
+* align SQLite driver version (WealthLedger/backend[#67](https://git.personal.ksv741.ru/WealthLedger/backend/issues/67)) ([203cc72](https://git.personal.ksv741.ru/WealthLedger/backend/commit/203cc72cb2d1aac34f39c5ba528820b511666f17))
+* drop unused direct source-map-support dependency (WealthLedger/backend[#4](https://git.personal.ksv741.ru/WealthLedger/backend/issues/4)) ([#96](https://git.personal.ksv741.ru/WealthLedger/backend/issues/96)) ([c789e33](https://git.personal.ksv741.ru/WealthLedger/backend/commit/c789e33c41281f2fc3de8851f21ae897a81e2b5d))
+* make OpenAPI export atomic and add read-only check (WealthLedger/backend[#3](https://git.personal.ksv741.ru/WealthLedger/backend/issues/3)) ([#97](https://git.personal.ksv741.ru/WealthLedger/backend/issues/97)) ([a93f2d5](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a93f2d55e7a31515ed1cc056cd57101f2b315405))
+* unify verification preparation (WealthLedger/backend[#66](https://git.personal.ksv741.ru/WealthLedger/backend/issues/66)) ([b90cedd](https://git.personal.ksv741.ru/WealthLedger/backend/commit/b90cedd580321fb560a4ad0d9f9f5ba03303248e))
+
+## [2.1.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v2.0.0...v2.1.0) (2026-10-12)
+
+### Features
+
+* add hourly portfolio sync history ([0057925](https://git.personal.ksv741.ru/WealthLedger/backend/commit/0057925888dde874830149865fc5e13920ac5783))
+* add stock screener ([7d10ef8](https://git.personal.ksv741.ru/WealthLedger/backend/commit/7d10ef8adfce76ad2ed6368e1022fbd3f6847a23))
+* reconcile hourly investment resource states ([323b83b](https://git.personal.ksv741.ru/WealthLedger/backend/commit/323b83b5827d1191fbc14cfdf1d0e62f249fc78d))
+
+### Bug Fixes
+
+* align backend workflow rules (WealthLedger/main[#27](https://git.personal.ksv741.ru/WealthLedger/backend/issues/27)) ([c7d0600](https://git.personal.ksv741.ru/WealthLedger/backend/commit/c7d060023b612af9e1dd4c2a2fb2d5d1bf173784))
+* bound hourly step awaits by the per-step wait limit ([#56](https://git.personal.ksv741.ru/WealthLedger/backend/issues/56)) ([52fa3a3](https://git.personal.ksv741.ru/WealthLedger/backend/commit/52fa3a36baa5ab236a7ebd64ef1b4f447c91e129))
+* keep candle retries read-only ([947ffef](https://git.personal.ksv741.ru/WealthLedger/backend/commit/947ffefa9b8cad7f19355c187f2bd50c9739a822))
+* restore terminal hourly lifecycle after persistence failure ([#56](https://git.personal.ksv741.ru/WealthLedger/backend/issues/56)) ([fa57a20](https://git.personal.ksv741.ru/WealthLedger/backend/commit/fa57a201fdd8127774aee9af553da75a75add07c))
+* unblock backend dependency audit ([85858a1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/85858a160f00dd428c80b8fa1824c1779245fdfe))
+
+### Documentation
+
+* clarify backend verification policy ([d7895f2](https://git.personal.ksv741.ru/WealthLedger/backend/commit/d7895f287ee802e7b13df7a2a4c6dba0b711e5a9))
+* pin backend workflow reference (WealthLedger/main[#27](https://git.personal.ksv741.ru/WealthLedger/backend/issues/27)) ([c5248db](https://git.personal.ksv741.ru/WealthLedger/backend/commit/c5248dbefc4b11a9f417bc835041a4294bd61047))
+
+### CI
+
+* skip checks on PR metadata edits ([0ad84ff](https://git.personal.ksv741.ru/WealthLedger/backend/commit/0ad84ff4f0b4712abc7e69dc299856f14af6eadd))
+
+### Tests
+
+* align all accounts metadata ([db375cb](https://git.personal.ksv741.ru/WealthLedger/backend/commit/db375cbee7d8f1eff48822b8e3c74898f40e8886))
+* align resource availability metadata ([bc631e7](https://git.personal.ksv741.ru/WealthLedger/backend/commit/bc631e72de0d9b0ff7b261b1ea644a73c2943d2a))
+* align upcoming events with local reads ([966b2a5](https://git.personal.ksv741.ru/WealthLedger/backend/commit/966b2a5836cdaf5b761e3c76568ff30a90ba1f4c))
+* extend ledger sqlite timeout ([4870d49](https://git.personal.ksv741.ru/WealthLedger/backend/commit/4870d4950303ad1de743e19b665b2fbdc05b781a))
+* increase ledger request timeout ([2facd86](https://git.personal.ksv741.ru/WealthLedger/backend/commit/2facd8675c74a97d92e0e8f44ed4a93aabb47674))
+
+### Maintenance
+
+* align backend engineering workflow (WealthLedger/main[#27](https://git.personal.ksv741.ru/WealthLedger/backend/issues/27)) ([a31e8d2](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a31e8d2c4d85a21cdd5efdcc9f5fe503f210804b))
+* prune obsolete eslint suppressions ([a46a411](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a46a4112cbcc72b1c3ff17cac4ac8bebcf579bca))
+
+## [2.0.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v1.0.0...v2.0.0) (2026-10-07)
+
+### ⚠ BREAKING CHANGES
+
+* remove investment stateVersion, queued sync state,
+  and tbank-sync status progress/resources. Consumers must observe
+  resources through sync=observe with the updated frontend contract.
+
+### Bug Fixes
+
+* **deps:** resolve npm audit advisories ([15a3d5f](https://git.personal.ksv741.ru/WealthLedger/backend/commit/15a3d5f331a0368032a747b4acd60db824127d99))
+* **deps:** restore backend security gate ([30e96e5](https://git.personal.ksv741.ru/WealthLedger/backend/commit/30e96e51e2622e3168f9137769d0343777243dcf))
+* harden auth and investment synchronization ([4796d9d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/4796d9d3f0160d96004a982f6c2526f199de4b9f))
+* **investments:** align roles and date contracts ([516e432](https://git.personal.ksv741.ru/WealthLedger/backend/commit/516e43203eb3fee8e6a0c7018be2fee11f1b900c))
+* resolve build imports before linting ([b244330](https://git.personal.ksv741.ru/WealthLedger/backend/commit/b24433092bd7deeb12589ee4c1fbc7f9e6b2a8b0))
+* resolve build imports before linting ([7d2262f](https://git.personal.ksv741.ru/WealthLedger/backend/commit/7d2262fb439298e73d2651aabae7c6dc6e2107d5))
+
+### Performance
+
+* group catalog source reads by identity ([6cd9c2d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/6cd9c2dd28f7f65eebb4dbfc0b459c52b0e8fe35))
+* group catalog source reads by identity ([e76eb54](https://git.personal.ksv741.ru/WealthLedger/backend/commit/e76eb545d7d2bbd763e696c947da9e0cd34e1ecd))
+* **income:** compute Moscow dates once ([a7619d5](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a7619d5c8fbb1a741727a0864dbb627ce2a190be))
+
+### Refactoring
+
+* centralize provider projections ([7fe88a1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/7fe88a12c7cd3c5eb16a1912c5bd55d171a64c95))
+* clarify nullable card metadata ([190eb90](https://git.personal.ksv741.ru/WealthLedger/backend/commit/190eb90ffe0b55a0e71047e9778aa77e167841a1))
+* enforce enum machine codes ([33592c1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/33592c1d5ff582ce57b596ae4e2324b1cea2b0f4))
+* enforce enum machine codes ([2d14081](https://git.personal.ksv741.ru/WealthLedger/backend/commit/2d14081d27935dc85da466e5d9713d2f703ca673))
+* isolate operation ranges and intents ([a13cf84](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a13cf84eadb0b36bd0c364a1d6f10831a8fdc44c))
+* replace ignored numeric literals with constants ([b78c215](https://git.personal.ksv741.ru/WealthLedger/backend/commit/b78c215ff13e908621e6970cfdcdd4f483e45d2a))
+* replace ignored numeric literals with constants ([9cc9fbd](https://git.personal.ksv741.ru/WealthLedger/backend/commit/9cc9fbdcff91f1a58c78ab83eea5fc0bc80106c7))
+* share authentication result type ([fb2e851](https://git.personal.ksv741.ru/WealthLedger/backend/commit/fb2e851e7e3f58c915ba1086212aa7957c3f9ed3))
+* simplify investment data flow ([1be6db6](https://git.personal.ksv741.ru/WealthLedger/backend/commit/1be6db65d70f6a96629988289500098b2728b2eb))
+* simplify runtime coordination [#7](https://git.personal.ksv741.ru/WealthLedger/backend/issues/7) ([d698ed9](https://git.personal.ksv741.ru/WealthLedger/backend/commit/d698ed9425a5da49846ffe4e91a396e3f2d91f72))
+
+### CI
+
+* reduce duplicate actions and serialize checks ([53b2794](https://git.personal.ksv741.ru/WealthLedger/backend/commit/53b27949631cadda10f988ff1920ac813d175ccc))
+
+### Tests
+
+* separate performance budget from e2e gate ([01e2de6](https://git.personal.ksv741.ru/WealthLedger/backend/commit/01e2de6a041e75da739b8288d055b1dce82d38a2))
+
+### Styles
+
+* align multiline ternary operators ([183b7f1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/183b7f1efdafb77f2eb5afb82160f79feb642887))
+* align multiline ternary operators ([0303e60](https://git.personal.ksv741.ru/WealthLedger/backend/commit/0303e60b64c507b03fba91f9987f024cf28c95cc))
+
+### Maintenance
+
+* guard backend responsibility boundaries ([14a204d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/14a204de0d32ad78193c614bef28513d1f97c593))
+* strengthen backend eslint profile ([a970eaa](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a970eaaf7a5549d1c51844ee6fc06c1aaf5afa56))
+* strengthen backend eslint profile ([9b3558f](https://git.personal.ksv741.ru/WealthLedger/backend/commit/9b3558f96c88ff625deae83c07d2087c2ceabfe9))
+
+## [1.0.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v0.2.3...v1.0.0) (2026-09-26)
+
+### ⚠ BREAKING CHANGES
+
+* investment reads return data/meta resource envelopes and locally
+  persisted snapshots; consumers must use the matching OpenAPI contract and explicit
+  synchronization endpoints.
+
+### Features
+
+* persist T-Bank data and synchronize reads ([d6e6c4a](https://git.personal.ksv741.ru/WealthLedger/backend/commit/d6e6c4ace553572ff9e9f635b7a4d21c8afbf97f))
+
+### Tests
+
+* prove reads finish before source synchronization ([e423213](https://git.personal.ksv741.ru/WealthLedger/backend/commit/e4232138d04ad6a2aa8100a7d36fdcb2d7663fa8))
+
 ## [0.2.3](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v0.2.2...v0.2.3) (2026-09-19)
 
 ### Bug Fixes

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:24.21.0-bookworm-slim AS base
+FROM node:24.22.1-bookworm-slim AS base
 WORKDIR /app
 
 FROM base AS dependencies
@@ -19,7 +19,8 @@ EXPOSE 3000
 CMD ["npm", "run", "start:dev"]
 
 FROM dependencies AS build
-RUN npm run build && npm prune --omit=dev --omit=optional
+# The client is already generated at the shared dependencies stage (same revision).
+RUN npx --no-install nest build && npm prune --omit=dev --omit=optional
 
 FROM base AS production
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates=20250419~deb12u1 openssl=3.0.20-1~deb12u2 && rm -rf /var/lib/apt/lists/* \

README.md

@@ -14,6 +14,7 @@ cp .env.example .env
 nvm use --silent
 npm ci
 npx prisma migrate deploy
+npx prisma generate
 npm run start:dev
 ```
 
@@ -60,12 +61,15 @@ Compose topology принадлежит workspace, эксплуатационн
 npm run verify
 ```
 
-Он запускает zero-warning lint,
+Он запускает генерацию Prisma client, zero-warning lint,
 application/test typechecks, Jest с покрытием и build. `npm run lint:fix` — отдельная
 записывающая команда. `npm run test:cov` также доступен отдельно; общего числового
-threshold нет. `npm run test:e2e` отдельно проверяет все HTTP suites на новых базах
-и соответствие генерируемого OpenAPI настроенному приложению. Для полной backend-проверки
-выполните обе команды.
+threshold нет. `npm run test:e2e` отдельно проверяет функциональные HTTP suites
+на новых базах и соответствие генерируемого OpenAPI настроенному приложению.
+Для полной backend-проверки выполните обе команды. Тяжёлый synthetic benchmark
+с 300 000 операций и 1 000 000 свечей запускается отдельно командой
+`npm run test:performance`: его wall-clock budget зависит от выделенного runner CPU
+и не является функциональным merge gate.
 
 Nest 12 поставляется как ESM. Скрипты Jest включают `--experimental-vm-modules`,
 включая watch/coverage/debug; SQLite runner включает тот же флаг. TypeScript 6
@@ -74,17 +78,40 @@ TypeScript 7 требует поддержки со стороны `ts-jest` и
 
 ### CI и обновления зависимостей
 
-`.gitea/workflows/verify.yml` запускает `npm ci`, генерацию Prisma client,
-`npm run verify` и `npm run test:e2e` на push и PR. Используется только checkout
+Единый `.gitea/workflows/verify.yml` запускает `commits → security → verify`
+последовательно на PR; на push в `develop`/`main` — `security → verify`.
+Рабочие ветки проверяются после открытия PR, без дублирующего push-запуска.
+Изменение заголовка PR повторяет только проверку Conventional Commits; `security`
+и `verify` на metadata-only событии не запускаются.
+Новый запуск отменяет устаревший для того же PR/ветки и типа события
+(требуется Gitea 1.26+). Ежедневно в 05:47 UTC выполняется только `security`.
+Job `verify` запускает `npm ci` и `npm run verify` (генерация Prisma client
+внутри gate, один Nest build), затем функциональный `node test/sqlite.cjs --all`
+на уже собранных артефактах. Используется только checkout
 backend и его зависимости; OpenAPI генерируется во время проверки, SHA записывается в лог.
 Успешный unit gate не заменяет SQLite/e2e; ошибка любой suite завершает job с FAIL.
 
-`security.yml` сканирует всю Git-историю Gitleaks 8.30.1 с полностью скрытыми
-значениями и выполняет `npm audit --include=dev --audit-level=low` при push,
-PR и ежедневно. `.gitleaksignore` перечисляет только проверенные исторические
+Job `security` сканирует всю Git-историю Gitleaks 8.30.1 с полностью скрытыми
+значениями, блокирует любой runtime advisory через
+`npm audit --omit=dev --audit-level=low` и high/critical findings полного дерева
+через `npm audit --include=dev --audit-level=high`. Moderate advisory
+`sprintf-js` остаётся только в Jest coverage tooling; исправленной версии пока
+нет, а предложенный npm downgrade `ts-jest` несовместим с текущим test stack.
+`.gitleaksignore` перечисляет только проверенные исторические
 совпадения: детерминированные fixtures, placeholder и badge из Nest starter.
 Новые коммиты этими исключениями не покрываются.
 
+Имена jobs `commits`, `security`, `verify` сохранены, но Gitea включает имя
+workflow в статус. При внедрении администратор должен заменить required checks
+для защищённых веток на `Backend verify / commits (pull_request)`,
+`Backend verify / security (pull_request)` и
+`Backend verify / verify (pull_request)`, удалив старые имена и push-статусы,
+если они требовались. Все три PR-проверки должны оставаться обязательными.
+Публикация образов по тегам остаётся в `image.yml`.
+Последовательность jobs ограничивает один запуск; для ограничения нагрузки всего сервера настройте
+`runner.capacity: 1` у общего runner и учтите остальные зарегистрированные
+runners. Конфигурация runner управляется вне этого репозитория.
+
 Renovate группирует minor/patch updates, а major требует согласования в
 Dependency Dashboard. Автоматический merge не включён. Прямые зависимости
 фиксируются точными версиями: `.npmrc` задаёт `save-exact=true` для npm install,
@@ -105,6 +132,38 @@ Required checks настраиваются отдельно в Gitea: налич
 runtime-валидацию. В обычном коде нужны инициализация или сужение типа
 после проверки значения.
 
+## ESLint
+
+`npm run lint` проверяет весь authored TypeScript и JavaScript, включая scripts
+и configs. `npm run lint:fix` (также `npm run format`) применяет безопасные
+автоисправления. Форматирование принадлежит ESLint Stylistic: два пробела,
+одинарные кавычки и точки с запятой; Prettier не используется.
+
+Профиль: ESLint recommended, typescript-eslint recommendedTypeChecked,
+Node, NestJS typed, Jest, import-x с TypeScript resolver, SonarJS, RegExp,
+Security, Perfectionist recommended-natural и Stylistic customize.
+NestJS проверяется в production TS, Jest — в specs/e2e; generated Prisma,
+dist и coverage исключены. DI imports сохраняют runtime metadata.
+
+Исключения конфигурации: private backend не публикуется в npm;
+TS imports разрешает import-x вместо Node resolver; IsIn проверяет domain
+unions. Автосортировка объектов, классов, модулей и декораторов отключена,
+поскольку порядок может влиять на runtime. Остальные точечные исключения
+объясняют false positives непосредственно в коде.
+
+`eslint-suppressions.json` — штатный ESLint baseline только для существующих
+SonarJS cognitive-complexity, no-nested-conditional и no-nested-template-literals.
+Это отложенный refactor, а не исправленные нарушения. Baseline ограничен
+файлами и количеством сообщений; новые файлы и превышение количества блокируют
+lint. Он не защищает от усложнения уже учтённой функции при прежнем количестве
+сообщений — это остаётся предметом review. При сокращении долга обновляйте
+baseline командой `npx eslint . --prune-suppressions`; не пересоздавайте его
+для обхода новых ошибок. Security, TypeScript и Jest в baseline не включены.
+
+Рост baseline — изменение quality gate: он требует отдельного обоснования
+и review затронутого поведения. При рефакторинге сохраняйте или сокращайте
+baseline; прежнее число сообщений не доказывает прежнюю сложность функции.
+
 ## SonarQube
 
 Проект `wealthledger-backend` на `https://sonarqube.personal.ksv741.ru`
@@ -159,7 +218,10 @@ nvm use --silent
 npm run openapi:generate
 ```
 
-Команда собирает backend и записывает `openapi.json` в корень репозитория.
+Команда собирает backend и записывает `openapi.json` в корень репозитория
+атомарно: через временный файл и rename, без частичной записи при сбое.
+`npm run openapi:check` только сравнивает runtime schema с файлом и завершается
+с ошибкой при расхождении, не перезаписывая его.
 Сервер и HTTP-порт не запускаются; Nest preview читает metadata без создания
 провайдеров и подключения к БД/T-Bank. Настроенный `.env` и реальные секреты
 не нужны. `openapi.json` исключён из Git и каждый раз создаётся из DTO/Swagger
@@ -192,10 +254,14 @@ breaking changes относительно предыдущего выпуска.
 настраивается отдельно. История migrations применяется штатным `migrate deploy`.
 
 Регрессия самого запуска: `node test/sqlite-regression.cjs`. Она выполняет
-три последовательных и два параллельных полных e2e, проверяет уникальность DB,
-сохранность вымышленного внешнего файла, отказ migration и SIGINT/SIGTERM cleanup.
+три последовательных и два параллельных запуска двух обычных e2e suites,
+проверяет уникальность DB, сохранность вымышленного внешнего файла, отказ migration
+и SIGINT/SIGTERM cleanup. Полный e2e набор остаётся в `npm run test:e2e`.
 Логи остаются в каталоге из вывода. Для одной suite:
-`node test/sqlite.cjs app.e2e-spec.ts`.
+`node test/sqlite.cjs app.e2e-spec.ts`. Crash-регрессия в
+`tbank-operations-sync.e2e-spec.ts` загружает классы из `dist/`, поэтому перед
+адресным запуском этой suite выполните `npm run build`, иначе child/dist может
+расходиться с parent/src.
 
 | Риск | Проверка реальной DB |
 | --- | --- |
@@ -239,35 +305,59 @@ Durability оставляет временные DB, логи и `result.json`
 ## Релизы
 
 Репозиторий выпускается независимо. `develop` — интеграция, `main` — принятые
-релизы. Работа: `codex/<task>` от актуального `develop`, PR в `develop`.
-Обычные PR допускают squash; release и обратная синхронизация сохраняют историю.
-Commits и PR titles — Conventional Commits, включая `spec:`. Версии вручную не повышай.
+релизы. Обычная работа: issue-linked ветка от актуального `develop`, PR в `develop`;
+общие правила — в Engineering Workflow по ссылке из AGENTS.
+PR сливается squash или rebase-merge; merge-коммит не используется. `main`
+обновляется только fast-forward из `develop`, поэтому история линейна:
 
-1. Получи `main`, `develop` и теги: `git fetch origin --tags`. Убедись, что
-   `develop` содержит последний релиз. Создай `release/<name>` от проверенного
-   `develop`; `nvm use --silent`, `npm ci`. Hotfix начинается от `main` в
-   `release/hotfix-<name>` и проходит тот же процесс.
+```text
+<type>/<issue>-<slug> --squash--> develop --ff-only--> main --> tag vX.Y.Z
+```
+
+Инвариант: `origin/main` всегда предок `origin/develop`. Проверка:
+
+```bash
+git fetch -q origin
+git merge-base --is-ancestor origin/main origin/develop && echo ok || echo BROKEN
+```
+
+Commits и PR titles — Conventional Commits со ссылкой на Issue (кроме release),
+включая `spec:`. Версии вручную не повышай.
+
+1. Получи `main`, `develop` и теги: `git fetch origin --tags`. Проверь
+   инвариант. Создай `release/X.Y.Z` от проверенного `develop`;
+   `nvm use --silent`, `npm ci`.
 2. На чистой ветке выполни `npm run release:preview`, просмотри версию/changelog,
    затем `npm run release:prepare`. Команда создаёт `chore(release): X.Y.Z`,
    обновляет manifest/lockfile/CHANGELOG; тег и push не выполняет. Не обходи
    guards ветки, чистого дерева, отсутствующих тегов или уже подготовленной версии.
 3. Проверь diff и штатные gates этого репозитория. Отправь только release-ветку,
-   открой PR в `main` с заголовком `chore(release): X.Y.Z`. После зелёных
-   `verify`, `security`, `commits` выполни fast-forward-only merge. Если `main`
-   изменился, согласуй историю и повтори проверки кандидата.
-4. Получи удалённый `main`, сравни его HEAD с проверенным release SHA и версией
+   открой PR в **`develop`** с заголовком `chore(release): X.Y.Z`. После зелёных
+   `verify`, `security`, `commits` выполни fast-forward-only merge. Если
+   `develop` изменился, обнови release-ветку и повтори проверки кандидата.
+4. Открой PR `develop → main` с тем же заголовком и слей fast-forward-only.
+5. Получи удалённый `main`, сравни его HEAD с проверенным release SHA и версией
    manifest/lockfile. Создай аннотированный `vX.Y.Z` именно на этом SHA:
    `git tag -a vX.Y.Z <release-sha> -m "Release X.Y.Z"`, затем отправь только
    `git push origin refs/tags/vX.Y.Z`. Не запускай release-it повторно на `main`.
-5. Верни release-коммит через PR `main → develop` без squash/rebase; проверь,
-   что `develop` содержит тег. Опубликованные теги не перемещай. При сбое после
-   merge создай отсутствующий тег без нового bump; до merge исправь и проверь
-   существующий кандидат без повторного повышения версии.
+Обратная синхронизация не нужна: release-коммит попал в `develop` на шаге 3.
+Опубликованные теги не перемещай. При сбое после merge создай отсутствующий тег
+без нового bump; до merge исправь и проверь существующий кандидат без
+повторного повышения версии.
+
+Freeze релиза не поддерживается: пока открыт релизный PR, `develop` не двигают.
+Срочный fix — обычная ветка `fix/*` от `develop` с последующим релизом;
+пути от `main` нет, он сделал бы `main` не-предком `develop`. Исключение
+требует явного решения: `release/hotfix-<name>` от `main`, PR в `main`, тег,
+затем merge `main → develop` для восстановления инварианта.
 
 `feat:` повышает minor, `fix:`/`perf:` и прочие разрешённые типы — patch;
 `!`/`BREAKING CHANGE:` — major, включая версии до 1.0. `chore(release):`
 исключён из рекомендации и changelog. Конфигурация — `.release-it.json`.
 В Gitea для `main`/`develop` должны быть запрещены прямой/force push и обход
-администратором, обязательны `verify`, `security`, `commits`; теги `v*` защищены.
+администратором, включена блокировка устаревшей ветки, обязательны `verify`,
+`security`, `commits`; теги `v*` защищены. Линейность обеспечивают merge styles
+репозитория: merge-коммиты и rebase `--no-ff` выключены, доступны squash,
+rebase-merge и fast-forward-only; стиль по умолчанию — squash.
 Workflow сам не включает эти настройки. Отдельное review approval для одного
 владельца не требуется. Npm publishing, deploy и Gitea Releases не включены.

commitlint.config.cjs

@@ -1,4 +1,12 @@
 module.exports = {
-  extends: ["@commitlint/config-conventional"],
-  rules: { "type-enum": [2, "always", ["feat", "fix", "perf", "docs", "spec", "refactor", "build", "ci", "test", "style", "chore", "revert"]] },
+  extends: ['@commitlint/config-conventional'],
+  defaultIgnores: false,
+  ignores: [
+    (message) => /^chore\(release\): \d+\.\d+\.\d+$/.test(message.trim()),
+    (message) => /^Merge pull request ['"].+['"] \(#\d+\) from .+ into .+$/.test(message.trim()),
+  ],
+  rules: {
+    'type-enum': [2, 'always', ['feat', 'fix', 'perf', 'docs', 'spec', 'refactor', 'build', 'ci', 'test', 'style', 'chore', 'revert']],
+    'references-empty': [2, 'never'],
+  },
 };

eslint-suppressions.json

@@ -0,0 +1,169 @@
+{
+  "src/common/decimal.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/integrations/tbank/instrument-metadata.repository.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/integrations/tbank/instrument-metadata.service.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    }
+  },
+  "src/integrations/tbank/tbank.client.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    }
+  },
+  "src/modules/banking/bank-cards/application/bank-operations.service.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    }
+  },
+  "src/modules/banking/bank-cards/infrastructure/bank-cards.repository.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/income/income-analytics.service.ts": {
+    "sonarjs/no-nested-template-literals": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/income/income-period.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/instruments/application/candle.service.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 3
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 4
+    },
+    "sonarjs/no-nested-template-literals": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/instruments/application/catalog-discovery.service.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/instruments/application/catalog-enrichment.service.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/instruments/bonds/application/bond-income.service.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 2
+    }
+  },
+  "src/modules/investments/instruments/bonds/application/bond.spec.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/instruments/infrastructure/candle.repository.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 2
+    }
+  },
+  "src/modules/investments/instruments/infrastructure/catalog-discovery.repository.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 2
+    }
+  },
+  "src/modules/investments/instruments/stocks/application/stock-income.service.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/investment-sync-plan.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 4
+    }
+  },
+  "src/modules/investments/operations/application/brokerage-operations.service.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 2
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 9
+    }
+  },
+  "src/modules/investments/operations/domain/operations-sync-plan.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/operations/infrastructure/brokerage-operation.mapper.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 2
+    }
+  },
+  "src/modules/investments/operations/infrastructure/brokerage-operations.repository.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 3
+    },
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/portfolio/application/forecast.service.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/tbank-sync/tbank-screen.ts": {
+    "sonarjs/cognitive-complexity": {
+      "count": 1
+    }
+  },
+  "src/modules/investments/tbank-sync/tbank-sync.service.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 6
+    }
+  },
+  "test/bank-cards-durability.cjs": {
+    "sonarjs/no-nested-template-literals": {
+      "count": 1
+    }
+  },
+  "test/sqlite-regression.cjs": {
+    "sonarjs/no-nested-conditional": {
+      "count": 2
+    }
+  },
+  "test/sqlite.cjs": {
+    "sonarjs/no-nested-conditional": {
+      "count": 2
+    }
+  },
+  "test/tbank-ledger-local.e2e-spec.ts": {
+    "sonarjs/no-nested-conditional": {
+      "count": 1
+    },
+    "sonarjs/no-nested-template-literals": {
+      "count": 3
+    }
+  }
+}

eslint.config.mjs

@@ -1,59 +1,94 @@
 // @ts-check
+import nest from '@darraghor/eslint-plugin-nestjs-typed';
 import eslint from '@eslint/js';
-import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended';
+import stylistic from '@stylistic/eslint-plugin';
+import { createTypeScriptImportResolver } from 'eslint-import-resolver-typescript';
+import { importX } from 'eslint-plugin-import-x';
+import jest from 'eslint-plugin-jest';
+import node from 'eslint-plugin-n';
+import perfectionist from 'eslint-plugin-perfectionist';
+import regexp from 'eslint-plugin-regexp';
+import security from 'eslint-plugin-security';
+import sonarjs from 'eslint-plugin-sonarjs';
+import { defineConfig, globalIgnores } from 'eslint/config';
 import globals from 'globals';
 import tseslint from 'typescript-eslint';
 
-export default tseslint.config(
+const tests = ['**/*.spec.ts', 'test/**/*.ts'];
+const prismaImports = [
+  '@prisma/*', '**/generated/prisma/**', '**/prisma.service',
+];
+
+export default defineConfig(
+  globalIgnores(['dist/**', 'dist-dev/**', 'build/**', 'generated/**', 'coverage/**', 'node_modules/**']),
   {
-    ignores: ['eslint.config.mjs', 'dist/', 'generated/'],
-  },
-  eslint.configs.recommended,
-  ...tseslint.configs.recommendedTypeChecked,
-  eslintPluginPrettierRecommended,
-  {
-    languageOptions: {
-      globals: {
-        ...globals.node,
-        ...globals.jest,
-      },
-      sourceType: 'commonjs',
-      parserOptions: {
-        projectService: true,
-        tsconfigRootDir: import.meta.dirname,
-      },
+    files: ['**/*.{ts,js,cjs,mjs}'],
+    extends: [
+      eslint.configs.recommended,
+      node.configs['flat/recommended'],
+      importX.flatConfigs.recommended,
+      sonarjs.configs.recommended,
+      regexp.configs['flat/recommended'],
+      security.configs.recommended,
+      perfectionist.configs['recommended-natural'],
+      stylistic.configs.customize({ indent: 2, quotes: 'single', semi: true, jsx: false }),
+    ],
+    languageOptions: { globals: globals.node },
+    linterOptions: { reportUnusedDisableDirectives: 'error' },
+    settings: {
+      'import-x/resolver-next': [createTypeScriptImportResolver()],
+      'node': { tryExtensions: ['.ts', '.js', '.json', '.node'], version: '24.22.1' },
+    },
+    rules: {
+      'curly': ['error', 'multi-line'],
+      // This private application is deployed as a whole, never published to npm.
+      'n/no-unpublished-import': 'off',
+      'n/no-unpublished-require': 'off',
+      // Decorator execution and object insertion order can be observable at runtime.
+      'perfectionist/sort-decorators': 'off',
+      'perfectionist/sort-objects': 'off',
+      'perfectionist/sort-modules': 'off',
+      'perfectionist/sort-classes': 'off',
+      '@stylistic/brace-style': ['error', '1tbs', { allowSingleLine: false }],
+      '@stylistic/arrow-parens': ['error', 'always'],
+      '@stylistic/operator-linebreak': [
+        'error',
+        'after',
+        { overrides: { '?': 'before', ':': 'before' } },
+      ],
+      'import-x/no-duplicates': ['error', { 'prefer-inline': true }],
     },
   },
   {
+    files: ['**/*.mjs'],
+    extends: [node.configs['flat/recommended-module']],
+  },
+  {
+    files: ['scripts/generate-openapi.cjs', 'test/fixtures/tbank-sync-crash.cjs', 'test/runtime-check.cjs'],
     rules: {
+      // These scripts run after build; lint validates their source paths before dist exists.
+      'n/no-missing-require': ['error', {
+        resolverConfig: {
+          alias: { '../dist': import.meta.dirname, '../../dist': import.meta.dirname },
+          extensionAlias: { '.js': ['.ts', '.js'] },
+        },
+      }],
+    },
+  },
+  {
+    files: ['**/*.ts'],
+    extends: [tseslint.configs.recommendedTypeChecked, importX.flatConfigs.typescript],
+    languageOptions: {
+      sourceType: 'module',
+      parserOptions: { projectService: true, tsconfigRootDir: import.meta.dirname },
+    },
+    rules: {
+      // TypeScript resolves source imports; import-x checks them with the TS resolver.
+      'n/no-missing-import': 'off',
       'no-magic-numbers': 'off',
       '@typescript-eslint/no-magic-numbers': [
         'error',
         {
-          ignore: [
-            -60,
-            -24,
-            -10,
-            -2,
-            -1,
-            0,
-            1,
-            2,
-            10,
-            24,
-            60,
-            '-60n',
-            '-24n',
-            '-10n',
-            '-2n',
-            '-1n',
-            '0n',
-            '1n',
-            '2n',
-            '10n',
-            '24n',
-            '60n',
-          ],
           ignoreArrayIndexes: true,
           ignoreDefaultValues: true,
           ignoreEnums: true,
@@ -63,24 +98,117 @@ export default tseslint.config(
           enforceConst: true,
         },
       ],
-      '@typescript-eslint/no-explicit-any': 'off',
       '@typescript-eslint/no-non-null-assertion': 'error',
-      'no-restricted-syntax': [
-        'error',
-        {
-          selector:
-            'PropertyDefinition[definite=true], VariableDeclarator[definite=true]',
-          message:
-            'Definite assignment assertions are forbidden. Initialize owned values; use declare only for externally populated DTO fields.',
-        },
-      ],
-      '@typescript-eslint/no-floating-promises': 'warn',
-      '@typescript-eslint/no-unsafe-argument': 'warn',
-      'prettier/prettier': ['error', { endOfLine: 'auto' }],
+      'no-restricted-syntax': ['error', {
+        selector: 'PropertyDefinition[definite=true], VariableDeclarator[definite=true]',
+        message: 'Definite assignment assertions are forbidden. Initialize owned values; use declare only for externally populated DTO fields.',
+      }],
     },
   },
   {
-    files: ['**/*.spec.ts', 'test/**/*.ts'],
-    rules: { '@typescript-eslint/no-magic-numbers': 'off' },
+    files: ['src/**/*.ts'],
+    ignores: tests,
+    extends: [nest.configs.flatRecommended],
+    rules: {
+      // Domain string unions are validated with IsIn rather than runtime TS enums.
+      '@darraghor/nestjs-typed/validated-non-primitive-property-needs-type-decorator': ['error', { additionalTypeDecorators: ['IsIn'] }],
+    },
+  },
+  {
+    files: tests,
+    extends: [jest.configs['flat/recommended']],
+    rules: {
+      '@typescript-eslint/no-magic-numbers': 'off',
+      'jest/expect-expect': ['error', { assertFunctionNames: ['expect', '**.expect'] }],
+    },
+  },
+  {
+    files: ['src/modules/**/domain/**/*.ts'],
+    ignores: tests,
+    rules: {
+      'no-restricted-imports': ['error', {
+        patterns: [{
+          group: [
+            '@nestjs/*', ...prismaImports, '**/*.dto', '**/*.repository',
+            '**/*.client', '**/application/**', '**/infrastructure/**',
+          ],
+          message: 'Domain uses pure rules and value types, not transport or persistence.',
+        }],
+      }],
+    },
+  },
+  {
+    files: ['src/**/*.controller.ts'],
+    ignores: tests,
+    rules: {
+      'no-restricted-imports': ['error', {
+        patterns: [
+          {
+            group: [...prismaImports, '**/*.repository', '**/*.client'],
+            message: 'Controllers delegate to application services or use cases.',
+          },
+          {
+            group: ['**'],
+            importNamePattern: '(?:Client|Repository|PrismaService)$',
+            message: 'Use application orchestration rather than data providers in controllers.',
+          },
+        ],
+      }],
+    },
+  },
+  {
+    files: ['src/**/*.use-case.ts'],
+    ignores: tests,
+    rules: {
+      'no-restricted-imports': ['error', {
+        patterns: [{
+          group: prismaImports,
+          message: 'Use cases obtain data through concrete repositories.',
+        }],
+      }],
+    },
+  },
+  {
+    files: [
+      'src/**/*.ts',
+    ],
+    ignores: [
+      '**/*.spec.ts',
+      'test/**/*.ts',
+    ],
+    rules: {
+      'no-restricted-syntax': [
+        'error',
+        {
+          selector: 'Literal[value=/^(?:(?:INSTRUMENT_ID_TYPE|INSTRUMENT_TYPE|OPERATION_STATE|OPERATION_TYPE|ACCOUNT_STATUS|ACCOUNT_TYPE|CANDLE_INTERVAL|COUPON_TYPE|BANK|INVALID)_[A-Z0-9]+(?:_[A-Z0-9]+)*|[A-Z][A-Z0-9_]*_(?:ERROR|UNAVAILABLE|NOT_FOUND|NOT_CONNECTED|CONFLICT|AMBIGUOUS|REGISTERED)|P[0-9]{4}|UNAUTHORIZED|FORBIDDEN|BAD_REQUEST|NOT_FOUND|UNSUPPORTED_MEDIA_TYPE)$/]:not(TSEnumMember > Literal)',
+          message: 'Use the owning enum member for machine codes and protocol values.',
+        },
+        {
+          selector: 'TemplateElement[value.cooked=/^(?:(?:INSTRUMENT_ID_TYPE|INSTRUMENT_TYPE|OPERATION_STATE|OPERATION_TYPE|ACCOUNT_STATUS|ACCOUNT_TYPE|CANDLE_INTERVAL|COUPON_TYPE|BANK|INVALID)_[A-Z0-9]+(?:_[A-Z0-9]+)*|[A-Z][A-Z0-9_]*_(?:ERROR|UNAVAILABLE|NOT_FOUND|NOT_CONNECTED|CONFLICT|AMBIGUOUS|REGISTERED)|P[0-9]{4}|UNAUTHORIZED|FORBIDDEN|BAD_REQUEST|NOT_FOUND|UNSUPPORTED_MEDIA_TYPE)$/]:not(TSEnumMember TemplateElement)',
+          message: 'Use the owning enum member instead of a template machine code.',
+        },
+        {
+          selector: 'Property:matches([key.name=/^(code|errorCode|idType|instrumentKind)$/], [key.value=/^(code|errorCode|idType|instrumentKind)$/]) > Literal.value[value=type(string)]',
+          message: 'Use an enum member instead of an inline code or protocol value.',
+        },
+        {
+          selector: 'Property:matches([key.name=/^(code|errorCode|idType|instrumentKind)$/], [key.value=/^(code|errorCode|idType|instrumentKind)$/]) > TemplateLiteral.value',
+          message: 'Use an enum member instead of constructing a code or protocol value.',
+        },
+        {
+          selector: 'Property[computed=false][key.name=/^(OPERATION_TYPE|ACCOUNT_TYPE)_/]',
+          message: 'Use a computed enum member as the protocol mapping key.',
+        },
+        {
+          selector: 'BinaryExpression:has(> :matches(MemberExpression[property.name=/^(code|errorCode)$/], Identifier[name=/^(code|errorCode)$/])) > Literal[value=type(string)]',
+          message: 'Compare codes with their enum members, not string literals.',
+        },
+        {
+          selector: 'PropertyDefinition[definite=true], VariableDeclarator[definite=true]',
+          message: 'Definite assignment assertions are forbidden. Initialize owned values; use declare only for externally populated DTO fields.',
+        },
+      ],
+      '@typescript-eslint/no-unsafe-enum-comparison': 'error',
+    },
   },
 );

package.json

@@ -1,24 +1,25 @@
 {
   "name": "wealth-ledger-backend",
-  "version": "0.2.3",
+  "version": "2.3.0",
   "description": "",
   "author": "",
   "private": true,
   "license": "UNLICENSED",
   "engines": {
-    "node": "v24.21.0"
+    "node": "v24.22.1"
   },
   "scripts": {
     "build": "prisma generate && nest build",
     "openapi:generate": "npm run build && node scripts/generate-openapi.cjs",
-    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
+    "openapi:check": "npm run build && node scripts/generate-openapi.cjs --check",
+    "format": "npm run lint:fix",
     "start": "nest start",
     "start:dev": "NODE_ENV=development nest start --watch --path tsconfig.dev.json",
-    "start:debug": "nest start --debug --watch --path tsconfig.dev.json",
+    "start:debug": "NODE_ENV=development nest start --debug --watch --path tsconfig.dev.json",
     "start:prod": "node dist/src/main.js",
     "lint": "npm run lint:check",
-    "lint:check": "eslint \"{src,apps,libs,test}/**/*.ts\" --max-warnings=0",
-    "lint:fix": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "lint:check": "eslint . --max-warnings=0",
+    "lint:fix": "eslint . --fix --max-warnings=0",
     "typecheck:app": "tsc --project tsconfig.typecheck.app.json",
     "typecheck:test": "tsc --project tsconfig.typecheck.test.json",
     "test": "node --experimental-vm-modules node_modules/jest/bin/jest.js",
@@ -26,84 +27,107 @@
     "test:cov": "npm test -- --coverage",
     "test:debug": "node --experimental-vm-modules --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
     "test:e2e": "npm run build && node test/sqlite.cjs --all",
+    "test:performance": "npm run build && node test/sqlite.cjs tbank-read-baseline.e2e-spec.ts",
     "test:sqlite": "node test/sqlite.cjs",
     "test:container": "node test/container-smoke.cjs",
     "test:durability": "node test/bank-cards-durability.cjs",
     "test:openapi-contract": "npm run build && node test/sqlite.cjs openapi-contract.e2e-spec.ts",
-    "verify": "npm run lint && npm run typecheck:app && npm run typecheck:test && npm run test:cov -- --runInBand && npm run build",
+    "verify": "prisma generate && npm run lint && npm run test:lint && npm run typecheck:app && npm run typecheck:test && npm run test:cov -- --runInBand && nest build",
     "release:preview": "release-it --dry-run --ci",
     "release:prepare": "release-it --ci",
-    "commitlint": "commitlint"
+    "commitlint": "commitlint",
+    "test:lint": "node --test test/eslint-config.cjs"
   },
   "dependencies": {
-    "@grpc/grpc-js": "1.14.4",
+    "@grpc/grpc-js": "1.14.6",
     "@grpc/proto-loader": "0.8.1",
-    "@nestjs/common": "12.0.1",
-    "@nestjs/config": "12.0.0",
-    "@nestjs/core": "12.0.1",
-    "@nestjs/jwt": "12.0.1",
+    "@nestjs/common": "12.2.0",
+    "@nestjs/config": "12.0.1",
+    "@nestjs/core": "12.2.0",
+    "@nestjs/jwt": "12.0.3",
     "@nestjs/passport": "12.0.0",
-    "@nestjs/platform-express": "12.0.1",
-    "@nestjs/swagger": "12.0.1",
-    "@prisma/adapter-better-sqlite3": "7.10.0",
-    "@prisma/client": "7.10.0",
+    "@nestjs/platform-express": "12.2.0",
+    "@nestjs/swagger": "12.0.4",
+    "@prisma/adapter-better-sqlite3": "7.10.1",
+    "@prisma/client": "7.10.1",
     "bcrypt": "6.0.0",
-    "better-sqlite3": "13.0.3",
+    "better-sqlite3": "12.11.1",
     "cheerio": "1.2.0",
     "class-transformer": "0.5.1",
     "class-validator": "0.15.1",
     "cookie-parser": "1.4.7",
-    "lru-cache": "11.5.2",
-    "nestjs-pino": "5.1.0",
+    "dotenv": "17.4.2",
+    "lru-cache": "11.5.3",
+    "nestjs-pino": "5.3.1",
     "passport": "0.7.0",
     "passport-jwt": "4.0.1",
     "pino-http": "11.0.0",
-    "prisma": "7.10.0",
+    "prisma": "7.10.1",
     "reflect-metadata": "0.2.2",
     "rxjs": "7.8.2"
   },
   "devDependencies": {
-    "@commitlint/cli": "21.2.2",
-    "@commitlint/config-conventional": "21.2.2",
-    "@eslint/eslintrc": "3.3.7",
+    "@commitlint/cli": "21.2.4",
+    "@commitlint/config-conventional": "21.2.4",
+    "@darraghor/eslint-plugin-nestjs-typed": "7.5.8",
     "@eslint/js": "10.0.1",
-    "@nestjs/cli": "12.0.0",
-    "@nestjs/schematics": "12.0.1",
-    "@nestjs/testing": "12.0.1",
-    "@release-it/conventional-changelog": "12.0.0",
+    "@nestjs/cli": "12.0.10",
+    "@nestjs/schematics": "12.0.10",
+    "@nestjs/testing": "12.2.0",
+    "@release-it/conventional-changelog": "12.0.2",
+    "@stylistic/eslint-plugin": "5.10.0",
     "@types/bcrypt": "6.0.0",
     "@types/cookie-parser": "1.4.10",
     "@types/express": "5.0.6",
     "@types/jest": "30.0.0",
-    "@types/node": "24.13.4",
+    "@types/node": "24.19.2",
     "@types/passport-jwt": "4.0.1",
     "@types/supertest": "7.2.1",
-    "conventional-changelog-conventionalcommits": "10.4.0",
-    "eslint": "10.10.0",
-    "eslint-config-prettier": "10.1.8",
-    "eslint-plugin-prettier": "5.5.6",
-    "globals": "17.12.0",
-    "jest": "30.5.1",
-    "prettier": "3.9.6",
-    "release-it": "21.0.2",
-    "source-map-support": "0.5.21",
-    "supertest": "7.2.2",
-    "ts-jest": "29.4.12",
+    "conventional-changelog-conventionalcommits": "10.4.1",
+    "eslint": "10.13.0",
+    "eslint-import-resolver-typescript": "4.4.5",
+    "eslint-plugin-import-x": "4.17.1",
+    "eslint-plugin-jest": "29.17.0",
+    "eslint-plugin-n": "18.5.0",
+    "eslint-plugin-perfectionist": "5.13.0",
+    "eslint-plugin-regexp": "3.3.1",
+    "eslint-plugin-security": "4.2.0",
+    "eslint-plugin-sonarjs": "4.2.2",
+    "globals": "17.13.0",
+    "jest": "30.5.2",
+    "pino-pretty": "13.2.0",
+    "release-it": "21.1.1",
+    "supertest": "7.3.1",
+    "ts-jest": "29.4.15",
     "ts-loader": "9.6.2",
     "ts-node": "10.9.2",
     "tsconfig-paths": "4.2.0",
     "typescript": "6.0.3",
-    "typescript-eslint": "8.70.0"
+    "typescript-eslint": "8.72.0"
   },
   "overrides": {
+    "proxy-addr": "2.0.8",
+    "express": {
+      "body-parser": "2.4.0"
+    },
     "@nestjs/platform-express": {
-      "multer": "2.3.0"
+      "multer": "2.5.0"
+    },
+    "ajv": {
+      "fast-uri": "3.1.9"
     },
     "@prisma/config@7.10.0": {
       "deepmerge-ts": "8.0.2"
     },
+    "release-it": {
+      "basic-ftp": "6.2.3",
+      "undici": "7.30.1"
+    },
+    "socks": {
+      "ip-address": "10.7.4"
+    },
     "prisma": {
-      "mysql2": "3.24.4"
+      "mysql2": "3.24.6"
     }
   },
   "jest": {
@@ -130,7 +154,6 @@
     "better-sqlite3@12.11.1": true,
     "fsevents@2.3.3": true,
     "protobufjs@7.6.5": true,
-    "unrs-resolver@1.12.2": true,
-    "better-sqlite3@13.0.3": true
+    "unrs-resolver@1.12.2": true
   }
 }

prisma/migrations/20260924170000_persist_tbank_data/migration.sql

@@ -0,0 +1,239 @@
+PRAGMA foreign_keys=OFF;
+BEGIN IMMEDIATE;
+
+-- CreateTable
+CREATE TABLE "TbankAccount" (
+    "userId" TEXT NOT NULL,
+    "revision" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "type" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "openedOn" TEXT,
+    "upstreamOrder" INTEGER NOT NULL,
+    "operationsRevision" INTEGER NOT NULL DEFAULT 0,
+    "historyFrom" DATETIME,
+    "historyBoundary" TEXT NOT NULL DEFAULT 'unknown',
+
+    PRIMARY KEY ("userId", "revision", "accountId"),
+    CONSTRAINT "TbankAccount_userId_revision_fkey" FOREIGN KEY ("userId", "revision") REFERENCES "TbankConnection" ("userId", "revision") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateTable
+CREATE TABLE "TbankPortfolio" (
+    "userId" TEXT NOT NULL,
+    "revision" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "payload" JSONB NOT NULL,
+    "mappingVersion" INTEGER NOT NULL DEFAULT 1,
+    "fetchedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("userId", "revision", "accountId"),
+    CONSTRAINT "TbankPortfolio_userId_revision_accountId_fkey" FOREIGN KEY ("userId", "revision", "accountId") REFERENCES "TbankAccount" ("userId", "revision", "accountId") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateTable
+CREATE TABLE "TbankOperation" (
+    "userId" TEXT NOT NULL,
+    "revision" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "brokerOperationId" TEXT NOT NULL,
+    "occurredAt" DATETIME NOT NULL,
+    "instrumentUid" TEXT,
+    "category" TEXT NOT NULL,
+    "payload" JSONB NOT NULL,
+    "mappingVersion" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("userId", "revision", "accountId", "brokerOperationId"),
+    CONSTRAINT "TbankOperation_userId_revision_accountId_fkey" FOREIGN KEY ("userId", "revision", "accountId") REFERENCES "TbankAccount" ("userId", "revision", "accountId") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateTable
+CREATE TABLE "TbankOperationCoverage" (
+    "userId" TEXT NOT NULL,
+    "revision" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "instrumentPredicate" TEXT NOT NULL DEFAULT '',
+    "from" DATETIME NOT NULL,
+    "to" DATETIME NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+    "asOf" DATETIME NOT NULL,
+
+    PRIMARY KEY ("userId", "revision", "accountId", "instrumentPredicate", "from", "to"),
+    CONSTRAINT "TbankOperationCoverage_userId_revision_accountId_fkey" FOREIGN KEY ("userId", "revision", "accountId") REFERENCES "TbankAccount" ("userId", "revision", "accountId") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateTable
+CREATE TABLE "TbankForecast" (
+    "userId" TEXT NOT NULL,
+    "revision" TEXT NOT NULL,
+    "scopeKey" TEXT NOT NULL,
+    "membershipRevision" INTEGER NOT NULL,
+    "payload" JSONB NOT NULL,
+    "dependencyRevisions" JSONB NOT NULL,
+    "sourceTimestamps" JSONB NOT NULL,
+    "calculatedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("userId", "revision", "scopeKey"),
+    CONSTRAINT "TbankForecast_userId_revision_fkey" FOREIGN KEY ("userId", "revision") REFERENCES "TbankConnection" ("userId", "revision") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateTable
+CREATE TABLE "TbankInstrument" (
+    "provider" TEXT NOT NULL,
+    "uid" TEXT NOT NULL,
+    "figi" TEXT,
+    "ticker" TEXT,
+    "instrumentType" TEXT NOT NULL,
+    "metadata" JSONB NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("provider", "uid")
+);
+
+-- CreateTable
+CREATE TABLE "TbankCatalogDiscovery" (
+    "provider" TEXT NOT NULL,
+    "instrumentType" TEXT NOT NULL,
+    "query" TEXT NOT NULL,
+    "instrumentUids" JSONB NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("provider", "instrumentType", "query")
+);
+
+-- CreateTable
+CREATE TABLE "TbankInstrumentLookup" (
+    "provider" TEXT NOT NULL,
+    "identifierType" TEXT NOT NULL,
+    "identifier" TEXT NOT NULL,
+    "matchedUids" JSONB NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("provider", "identifierType", "identifier")
+);
+
+-- CreateTable
+CREATE TABLE "TbankInstrumentSource" (
+    "provider" TEXT NOT NULL,
+    "instrumentUid" TEXT NOT NULL,
+    "source" TEXT NOT NULL,
+    "kind" TEXT NOT NULL,
+    "rangeKey" TEXT NOT NULL,
+    "payload" JSONB NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("provider", "instrumentUid", "source", "kind", "rangeKey"),
+    CONSTRAINT "TbankInstrumentSource_provider_instrumentUid_fkey" FOREIGN KEY ("provider", "instrumentUid") REFERENCES "TbankInstrument" ("provider", "uid") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateTable
+CREATE TABLE "TbankCandle" (
+    "provider" TEXT NOT NULL,
+    "instrumentUid" TEXT NOT NULL,
+    "interval" TEXT NOT NULL,
+    "time" DATETIME NOT NULL,
+    "close" TEXT NOT NULL,
+    "payload" JSONB NOT NULL,
+    "isComplete" BOOLEAN NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+
+    PRIMARY KEY ("provider", "instrumentUid", "interval", "time"),
+    CONSTRAINT "TbankCandle_provider_instrumentUid_fkey" FOREIGN KEY ("provider", "instrumentUid") REFERENCES "TbankInstrument" ("provider", "uid") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateTable
+CREATE TABLE "TbankCandleCoverage" (
+    "provider" TEXT NOT NULL,
+    "instrumentUid" TEXT NOT NULL,
+    "interval" TEXT NOT NULL,
+    "from" DATETIME NOT NULL,
+    "to" DATETIME NOT NULL,
+    "isComplete" BOOLEAN NOT NULL,
+    "fetchedAt" DATETIME NOT NULL,
+    "dataRevision" INTEGER NOT NULL DEFAULT 1,
+
+    PRIMARY KEY ("provider", "instrumentUid", "interval", "from", "to"),
+    CONSTRAINT "TbankCandleCoverage_provider_instrumentUid_fkey" FOREIGN KEY ("provider", "instrumentUid") REFERENCES "TbankInstrument" ("provider", "uid") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateTable
+CREATE TABLE "TbankSyncWork" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "userId" TEXT NOT NULL,
+    "revision" TEXT NOT NULL,
+    "scopeKey" TEXT NOT NULL,
+    "intent" JSONB NOT NULL,
+    "state" TEXT NOT NULL,
+    "attemptId" TEXT NOT NULL,
+    "processRunId" TEXT NOT NULL,
+    "priority" INTEGER NOT NULL,
+    "progress" JSONB NOT NULL,
+    "errorCode" TEXT,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" DATETIME NOT NULL,
+    CONSTRAINT "TbankSyncWork_userId_revision_fkey" FOREIGN KEY ("userId", "revision") REFERENCES "TbankConnection" ("userId", "revision") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateTable
+CREATE TABLE "TbankSyncStage" (
+    "workId" TEXT NOT NULL,
+    "attemptId" TEXT NOT NULL,
+    "sourceKey" TEXT NOT NULL,
+    "itemKey" TEXT NOT NULL,
+    "payload" JSONB NOT NULL,
+
+    PRIMARY KEY ("workId", "attemptId", "sourceKey", "itemKey"),
+    CONSTRAINT "TbankSyncStage_workId_attemptId_fkey" FOREIGN KEY ("workId", "attemptId") REFERENCES "TbankSyncWork" ("id", "attemptId") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- RedefineTables
+CREATE TABLE "new_TbankConnection" (
+    "userId" TEXT NOT NULL,
+    "encryptedToken" TEXT NOT NULL,
+    "connectedAt" DATETIME NOT NULL,
+    "revision" TEXT NOT NULL,
+    "invalidToken" BOOLEAN NOT NULL DEFAULT false,
+    "membershipAt" DATETIME,
+    "membershipRevision" INTEGER NOT NULL DEFAULT 0,
+    CONSTRAINT "TbankConnection_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+-- Preserve credentials and assign an opaque revision to each existing connection.
+INSERT INTO "new_TbankConnection" ("connectedAt", "encryptedToken", "userId", "revision") SELECT "connectedAt", "encryptedToken", "userId", lower(hex(randomblob(16))) FROM "TbankConnection";
+DROP TABLE "TbankConnection";
+ALTER TABLE "new_TbankConnection" RENAME TO "TbankConnection";
+CREATE UNIQUE INDEX "TbankConnection_userId_key" ON "TbankConnection"("userId");
+CREATE UNIQUE INDEX "TbankConnection_userId_revision_key" ON "TbankConnection"("userId", "revision");
+
+-- CreateIndex
+CREATE INDEX "TbankOperation_userId_revision_accountId_occurredAt_brokerOperationId_idx" ON "TbankOperation"("userId", "revision", "accountId", "occurredAt", "brokerOperationId");
+
+-- CreateIndex
+CREATE INDEX "TbankOperation_userId_revision_accountId_instrumentUid_occurredAt_idx" ON "TbankOperation"("userId", "revision", "accountId", "instrumentUid", "occurredAt");
+
+-- CreateIndex
+CREATE INDEX "TbankOperation_userId_revision_accountId_category_occurredAt_idx" ON "TbankOperation"("userId", "revision", "accountId", "category", "occurredAt");
+
+-- CreateIndex
+CREATE INDEX "TbankInstrument_provider_figi_idx" ON "TbankInstrument"("provider", "figi");
+
+-- CreateIndex
+CREATE INDEX "TbankInstrument_provider_ticker_instrumentType_idx" ON "TbankInstrument"("provider", "ticker", "instrumentType");
+
+-- CreateIndex
+CREATE INDEX "TbankSyncWork_userId_revision_state_priority_idx" ON "TbankSyncWork"("userId", "revision", "state", "priority");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "TbankSyncWork_userId_revision_scopeKey_key" ON "TbankSyncWork"("userId", "revision", "scopeKey");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "TbankSyncWork_id_attemptId_key" ON "TbankSyncWork"("id", "attemptId");
+
+
+COMMIT;
+PRAGMA foreign_keys=ON;

prisma/migrations/20261007181218_add_portfolio_value_history/migration.sql

@@ -0,0 +1,27 @@
+-- CreateTable
+CREATE TABLE "TbankPortfolioValueHistory" (
+    "userId" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "deletedAt" DATETIME,
+    "updatedAt" DATETIME NOT NULL,
+
+    PRIMARY KEY ("userId", "accountId"),
+    CONSTRAINT "TbankPortfolioValueHistory_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateTable
+CREATE TABLE "TbankPortfolioValuePoint" (
+    "userId" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "attemptId" TEXT NOT NULL,
+    "currency" TEXT NOT NULL,
+    "value" TEXT NOT NULL,
+    "capturedAt" DATETIME NOT NULL,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    PRIMARY KEY ("userId", "accountId", "attemptId", "currency"),
+    CONSTRAINT "TbankPortfolioValuePoint_userId_accountId_fkey" FOREIGN KEY ("userId", "accountId") REFERENCES "TbankPortfolioValueHistory" ("userId", "accountId") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+
+-- CreateIndex
+CREATE INDEX "TbankPortfolioValuePoint_userId_accountId_capturedAt_idx" ON "TbankPortfolioValuePoint"("userId", "accountId", "capturedAt");

prisma/schema.prisma

@@ -17,6 +17,7 @@ model User {
   bankCardOperations BankCardOperation[]
   sessions        Session[]
   tbankConnection TbankConnection?
+  tbankValueHistory TbankPortfolioValueHistory[]
   createdAt       DateTime         @default(now())
   updatedAt       DateTime         @updatedAt
 }
@@ -25,7 +26,240 @@ model TbankConnection {
   userId         String   @unique
   encryptedToken String
   connectedAt    DateTime
+  revision       String   @default(uuid())
+  invalidToken   Boolean  @default(false)
+  membershipAt   DateTime?
+  membershipRevision Int @default(0)
   user           User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  accounts       TbankAccount[]
+  forecasts      TbankForecast[]
+  work           TbankSyncWork[]
+
+  @@unique([userId, revision])
+}
+
+model TbankAccount {
+  userId String
+  revision String
+  accountId String
+  type String
+  name String
+  openedOn String?
+  upstreamOrder Int
+  operationsRevision Int @default(0)
+  historyFrom DateTime?
+  historyBoundary String @default("unknown")
+  connection TbankConnection @relation(fields: [userId, revision], references: [userId, revision], onDelete: Cascade, onUpdate: Restrict)
+  portfolio TbankPortfolio?
+  operations TbankOperation[]
+  coverage TbankOperationCoverage[]
+
+  @@id([userId, revision, accountId])
+}
+
+model TbankPortfolio {
+  userId String
+  revision String
+  accountId String
+  payload Json
+  mappingVersion Int @default(1)
+  fetchedAt DateTime
+  dataRevision Int @default(1)
+  account TbankAccount @relation(fields: [userId, revision, accountId], references: [userId, revision, accountId], onDelete: Cascade, onUpdate: Restrict)
+
+  @@id([userId, revision, accountId])
+}
+
+// Account valuation history survives connection replacement and stays hidden
+// until the current connection confirms the account again.
+model TbankPortfolioValueHistory {
+  userId String
+  accountId String
+  deletedAt DateTime?
+  updatedAt DateTime @updatedAt
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+  points TbankPortfolioValuePoint[]
+
+  @@id([userId, accountId])
+}
+
+// One row per currency of a fully valued successful portfolio attempt.
+model TbankPortfolioValuePoint {
+  userId String
+  accountId String
+  attemptId String
+  currency String
+  value String
+  capturedAt DateTime
+  createdAt DateTime @default(now())
+  history TbankPortfolioValueHistory @relation(fields: [userId, accountId], references: [userId, accountId], onDelete: Cascade, onUpdate: Restrict)
+
+  @@id([userId, accountId, attemptId, currency])
+  @@index([userId, accountId, capturedAt])
+}
+
+model TbankOperation {
+  userId String
+  revision String
+  accountId String
+  brokerOperationId String
+  occurredAt DateTime
+  instrumentUid String?
+  category String
+  payload Json
+  mappingVersion Int @default(1)
+  account TbankAccount @relation(fields: [userId, revision, accountId], references: [userId, revision, accountId], onDelete: Cascade, onUpdate: Restrict)
+
+  @@id([userId, revision, accountId, brokerOperationId])
+  @@index([userId, revision, accountId, occurredAt, brokerOperationId])
+  @@index([userId, revision, accountId, instrumentUid, occurredAt])
+  @@index([userId, revision, accountId, category, occurredAt])
+}
+
+model TbankOperationCoverage {
+  userId String
+  revision String
+  accountId String
+  instrumentPredicate String @default("")
+  from DateTime
+  to DateTime
+  fetchedAt DateTime
+  asOf DateTime
+  account TbankAccount @relation(fields: [userId, revision, accountId], references: [userId, revision, accountId], onDelete: Cascade, onUpdate: Restrict)
+
+  @@id([userId, revision, accountId, instrumentPredicate, from, to])
+}
+
+model TbankForecast {
+  userId String
+  revision String
+  scopeKey String
+  membershipRevision Int
+  payload Json
+  dependencyRevisions Json
+  sourceTimestamps Json
+  calculatedAt DateTime
+  dataRevision Int @default(1)
+  connection TbankConnection @relation(fields: [userId, revision], references: [userId, revision], onDelete: Cascade, onUpdate: Restrict)
+
+  @@id([userId, revision, scopeKey])
+}
+
+model TbankInstrument {
+  provider String
+  uid String
+  figi String?
+  ticker String?
+  instrumentType String
+  metadata Json
+  fetchedAt DateTime
+  dataRevision Int @default(1)
+  sources TbankInstrumentSource[]
+  candles TbankCandle[]
+  candleCoverage TbankCandleCoverage[]
+
+  @@id([provider, uid])
+  @@index([provider, figi])
+  @@index([provider, ticker, instrumentType])
+}
+
+model TbankCatalogDiscovery {
+  provider String
+  instrumentType String
+  query String
+  instrumentUids Json
+  fetchedAt DateTime
+  dataRevision Int @default(1)
+
+  @@id([provider, instrumentType, query])
+}
+
+// Empty and ambiguous successful UID/FIGI/ticker lookups are distinct from failures.
+model TbankInstrumentLookup {
+  provider String
+  identifierType String
+  identifier String
+  matchedUids Json
+  fetchedAt DateTime
+  dataRevision Int @default(1)
+
+  @@id([provider, identifierType, identifier])
+}
+
+// Source records contain no holdings, personal estimates or credentials errors.
+model TbankInstrumentSource {
+  provider String
+  instrumentUid String
+  source String
+  kind String
+  rangeKey String
+  payload Json
+  fetchedAt DateTime
+  dataRevision Int @default(1)
+  instrument TbankInstrument @relation(fields: [provider, instrumentUid], references: [provider, uid], onDelete: Cascade)
+
+  @@id([provider, instrumentUid, source, kind, rangeKey])
+}
+
+model TbankCandle {
+  provider String
+  instrumentUid String
+  interval String
+  time DateTime
+  close String
+  payload Json
+  isComplete Boolean
+  fetchedAt DateTime
+  instrument TbankInstrument @relation(fields: [provider, instrumentUid], references: [provider, uid], onDelete: Cascade)
+
+  @@id([provider, instrumentUid, interval, time])
+}
+
+model TbankCandleCoverage {
+  provider String
+  instrumentUid String
+  interval String
+  from DateTime
+  to DateTime
+  isComplete Boolean
+  fetchedAt DateTime
+  dataRevision Int @default(1)
+  instrument TbankInstrument @relation(fields: [provider, instrumentUid], references: [provider, uid], onDelete: Cascade)
+
+  @@id([provider, instrumentUid, interval, from, to])
+}
+
+model TbankSyncWork {
+  id String @id
+  userId String
+  revision String
+  scopeKey String
+  intent Json
+  state String
+  attemptId String
+  processRunId String
+  priority Int
+  progress Json
+  errorCode String?
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+  connection TbankConnection @relation(fields: [userId, revision], references: [userId, revision], onDelete: Cascade, onUpdate: Restrict)
+  staged TbankSyncStage[]
+
+  @@unique([userId, revision, scopeKey])
+  @@index([userId, revision, state, priority])
+  @@unique([id, attemptId])
+}
+
+model TbankSyncStage {
+  workId String
+  attemptId String
+  sourceKey String
+  itemKey String
+  payload Json
+  work TbankSyncWork @relation(fields: [workId, attemptId], references: [id, attemptId], onDelete: Cascade, onUpdate: Restrict)
+
+  @@id([workId, attemptId, sourceKey, itemKey])
 }
 
 model Session {

scripts/check-release.cjs

@@ -1,10 +1,11 @@
-const assert = require("node:assert/strict");
-const { execFileSync } = require("node:child_process");
-const { version } = require("../package.json");
-const git = (...args) => execFileSync("git", args, { encoding: "utf8" }).trim();
+const assert = require('node:assert/strict');
+const { execFileSync } = require('node:child_process');
 
-assert.equal(git("status", "--porcelain"), "", "Commit all changes before preparing a release");
-const tags = git("tag", "--merged", "HEAD", "--list", "v[0-9]*", "--sort=-version:refname")
-  .split("\n").filter(tag => /^v\d+\.\d+\.\d+$/.test(tag));
-assert.equal(version, tags[0]?.slice(1) ?? "0.0.0",
-  "Version is already prepared or release tags are missing. Fetch tags; finish the existing release before preparing another.");
+const { version } = require('../package.json');
+// eslint-disable-next-line sonarjs/no-os-command-from-path -- Developer-only command uses the operator PATH and fixed executable/arguments; no request input.
+const git = (...args) => execFileSync('git', args, { encoding: 'utf8' }).trim();
+
+const tags = git('tag', '--merged', 'HEAD', '--list', 'v[0-9]*', '--sort=-version:refname')
+  .split('\n').filter((tag) => /^v\d+\.\d+\.\d+$/.test(tag));
+assert.equal(version, tags[0]?.slice(1) ?? '0.0.0',
+  'Version is already prepared or release tags are missing. Fetch tags; finish the existing release before preparing another.');

scripts/generate-openapi.cjs

@@ -1,5 +1,10 @@
 const { randomBytes } = require('node:crypto');
-const { writeFile } = require('node:fs/promises');
+const { readFile, rename, rm, writeFile } = require('node:fs/promises');
+const { resolve } = require('node:path');
+
+// Relative to the working directory, as before: the contract test runs the script in a temporary directory.
+const target = resolve(process.cwd(), 'openapi.json');
+const checkOnly = process.argv.includes('--check');
 
 // Schema generation needs no deployment configuration or real credentials.
 Object.assign(process.env, {
@@ -15,26 +20,52 @@ Object.assign(process.env, {
 });
 
 const { NestFactory } = require('@nestjs/core');
+
 const { AppModule } = require('../dist/src/app.module.js');
 const { API_PREFIX, createOpenApiDocument } = require('../dist/src/openapi.js');
 
-async function generate() {
+async function render() {
   const app = await NestFactory.create(AppModule, {
     preview: true,
     logger: false,
   });
   try {
     app.setGlobalPrefix(API_PREFIX);
-    await writeFile(
-      'openapi.json',
-      JSON.stringify(createOpenApiDocument(app), null, 2) + '\n',
-    );
+    return JSON.stringify(createOpenApiDocument(app), null, 2) + '\n';
   } finally {
     await app.close();
   }
 }
 
-generate().catch((error) => {
-  console.error(error);
-  process.exitCode = 1;
-});
+// Read-only: compares the runtime document with the committed artifact and never writes.
+async function check(content) {
+  const current = await readFile(target, 'utf8').catch(() => null);
+  if (current !== content) {
+    console.error(
+      'openapi.json is out of date with the runtime schema. Run `npm run openapi:generate`.',
+    );
+    process.exitCode = 1;
+    return;
+  }
+  console.log('openapi.json matches the runtime schema.');
+}
+
+// Atomic update: write a sibling temp file, then rename over the target, so a failed run never leaves partial output.
+async function update(content) {
+  const temp = `${target}.${process.pid}.tmp`;
+  try {
+    // eslint-disable-next-line security/detect-non-literal-fs-filename -- Operator-selected working directory and fixed artifact name; no request input.
+    await writeFile(temp, content);
+    // eslint-disable-next-line security/detect-non-literal-fs-filename -- Operator-selected working directory and fixed artifact name; no request input.
+    await rename(temp, target);
+  } finally {
+    await rm(temp, { force: true });
+  }
+}
+
+render()
+  .then((content) => (checkOnly ? check(content) : update(content)))
+  .catch((error) => {
+    console.error(error);
+    process.exitCode = 1;
+  });

src/app.module.ts

@@ -1,9 +1,8 @@
 import { Module } from '@nestjs/common';
-import { ConfigModule, ConfigService } from '@nestjs/config';
-import { LoggerModule } from 'nestjs-pino';
-import { randomUUID } from 'node:crypto';
+import { ConfigModule } from '@nestjs/config';
+
 import { LoggingModule } from './common/logging/logging.module';
-import { Environment, validateEnv } from './config/env.validation';
+import { validateEnv } from './config/env.validation';
 import { AuthModule } from './modules/auth/auth.module';
 import { BankCardsModule } from './modules/banking/bank-cards/bank-cards.module';
 import { BrokerageAccountsModule } from './modules/investments/brokerage-accounts/brokerage-accounts.module';
@@ -12,6 +11,7 @@ import { InstrumentsModule } from './modules/investments/instruments/instruments
 import { OperationsModule } from './modules/investments/operations/operations.module';
 import { PortfolioModule } from './modules/investments/portfolio/portfolio.module';
 import { TbankConnectionModule } from './modules/investments/tbank-connection/tbank-connection.module';
+import { TbankSyncModule } from './modules/investments/tbank-sync/tbank-sync.module';
 import { UpcomingEventsModule } from './modules/investments/upcoming-events/upcoming-events.module';
 import { PrismaModule } from './prisma/prisma.module';
 
@@ -21,38 +21,6 @@ import { PrismaModule } from './prisma/prisma.module';
       isGlobal: true,
       validate: validateEnv,
     }),
-    LoggerModule.forRootAsync({
-      inject: [ConfigService],
-      useFactory: (config: ConfigService<Environment, true>) => ({
-        pinoHttp: {
-          level: config.getOrThrow('LOG_LEVEL'),
-          messageKey: 'message',
-          autoLogging: false,
-          genReqId: (request: unknown, response) => {
-            const existingId = (request as { id?: unknown }).id;
-            const requestId =
-              typeof existingId === 'string' ? existingId : randomUUID();
-            response.setHeader('X-Request-ID', requestId);
-            return requestId;
-          },
-          redact: [
-            'req.headers.authorization',
-            'req.headers.cookie',
-            'req.body',
-          ],
-          serializers: {
-            req: (request: unknown) => {
-              const value = request as { id?: unknown; method?: unknown };
-              return {
-                id: typeof value.id === 'string' ? value.id : undefined,
-                method:
-                  typeof value.method === 'string' ? value.method : undefined,
-              };
-            },
-          },
-        },
-      }),
-    }),
     LoggingModule,
     PrismaModule,
     AuthModule,
@@ -64,6 +32,7 @@ import { PrismaModule } from './prisma/prisma.module';
     UpcomingEventsModule,
     InstrumentsModule,
     TbankConnectionModule,
+    TbankSyncModule,
   ],
 })
 export class AppModule {}

src/common/decimal.ts

@@ -1,12 +1,30 @@
-export type Decimal = { value: bigint; scale: number };
+export const DECIMAL_RADIX = 10n;
+
+const SIGN_LENGTH = 1;
+const NEGATIVE_SIGN = -1n;
+const POSITIVE_SIGN = 1n;
+const ZERO_UNITS = 0n;
+const EQUAL = 0;
+const GREATER_THAN = 1;
+const LESS_THAN = -1;
+const INTEGER_SCALE = 0;
+const MIN_WHOLE_DIGITS = 1;
+const DIGITS_START = 0;
+const PREVIOUS_DIGIT_OFFSET = 1;
+const DIGIT_STEP = 1;
+const ROUNDING_DIVISOR = 2n;
+
+export type Decimal = { scale: number; value: bigint };
 
 export function decimalFromString(value: string): Decimal {
-  if (!/^-?(?:0|[1-9]\d*)(?:\.\d+)?$/.test(value))
+  // eslint-disable-next-line security/detect-unsafe-regex -- Anchored decimal grammar: the literal decimal point separates disjoint digit runs; backtracking is linear.
+  if (!/^-?(?:0|[1-9]\d*)(?:\.\d+)?$/.test(value)) {
     throw new Error('Invalid decimal string');
+  }
   const negative = value.startsWith('-');
-  const [whole, fraction = ''] = (negative ? value.slice(1) : value).split('.');
+  const [whole, fraction = ''] = (negative ? value.slice(SIGN_LENGTH) : value).split('.');
   return {
-    value: (negative ? -1n : 1n) * BigInt(`${whole}${fraction}`),
+    value: (negative ? NEGATIVE_SIGN : POSITIVE_SIGN) * BigInt(`${whole}${fraction}`),
     scale: fraction.length,
   };
 }
@@ -15,8 +33,8 @@ export function add(left: Decimal, right: Decimal): Decimal {
   const scale = Math.max(left.scale, right.scale);
   return {
     value:
-      left.value * 10n ** BigInt(scale - left.scale) +
-      right.value * 10n ** BigInt(scale - right.scale),
+      left.value * DECIMAL_RADIX ** BigInt(scale - left.scale) +
+      right.value * DECIMAL_RADIX ** BigInt(scale - right.scale),
     scale,
   };
 }
@@ -30,33 +48,37 @@ export function multiply(left: Decimal, right: Decimal): Decimal {
 }
 
 export function isZero(value: Decimal): boolean {
-  return value.value === 0n;
+  return value.value === ZERO_UNITS;
 }
 
 export function compare(left: Decimal, right: Decimal): number {
   const difference = subtract(left, right).value;
-  return difference === 0n ? 0 : difference > 0n ? 1 : -1;
+  return difference === ZERO_UNITS ? EQUAL : difference > ZERO_UNITS ? GREATER_THAN : LESS_THAN;
 }
 
 export function formatDecimal({ value, scale }: Decimal): string {
-  if (value === 0n) return '0';
-  const sign = value < 0n ? '-' : '';
-  if (scale === 0) return `${sign}${value < 0n ? -value : value}`;
-  const digits = (value < 0n ? -value : value)
+  if (value === ZERO_UNITS) return '0';
+  const sign = value < ZERO_UNITS ? '-' : '';
+  if (scale === INTEGER_SCALE) return `${sign}${value < ZERO_UNITS ? -value : value}`;
+  const digits = (value < ZERO_UNITS ? -value : value)
     .toString()
-    .padStart(scale + 1, '0');
-  const whole = digits.slice(0, -scale) || '0';
-  const fraction = digits.slice(-scale).replace(/0+$/, '');
-  return `${sign}${whole}${fraction ? `.${fraction}` : ''}`;
+    .padStart(scale + MIN_WHOLE_DIGITS, '0');
+  const whole = digits.slice(DIGITS_START, -scale) || '0';
+  const rawFraction = digits.slice(-scale);
+  let fractionEnd = rawFraction.length;
+  while (rawFraction.charAt(fractionEnd - PREVIOUS_DIGIT_OFFSET) === '0') fractionEnd -= DIGIT_STEP;
+  const fraction = rawFraction.slice(DIGITS_START, fractionEnd);
+  const fractionalPart = fraction ? '.' + fraction : '';
+  return `${sign}${whole}${fractionalPart}`;
 }
 
 // Round half away from zero; callers choose presentation precision explicitly.
 export function divide(left: Decimal, right: Decimal, scale: number): Decimal {
-  if (right.value === 0n) throw new Error('Division by zero');
-  const numerator = left.value * 10n ** BigInt(right.scale + scale);
-  const denominator = right.value * 10n ** BigInt(left.scale);
-  const sign = numerator < 0n !== denominator < 0n ? -1n : 1n;
-  const n = numerator < 0n ? -numerator : numerator;
-  const d = denominator < 0n ? -denominator : denominator;
-  return { value: sign * ((n + d / 2n) / d), scale };
+  if (right.value === ZERO_UNITS) throw new Error('Division by zero');
+  const numerator = left.value * DECIMAL_RADIX ** BigInt(right.scale + scale);
+  const denominator = right.value * DECIMAL_RADIX ** BigInt(left.scale);
+  const sign = (numerator < ZERO_UNITS) !== (denominator < ZERO_UNITS) ? NEGATIVE_SIGN : POSITIVE_SIGN;
+  const n = numerator < ZERO_UNITS ? -numerator : numerator;
+  const d = denominator < ZERO_UNITS ? -denominator : denominator;
+  return { value: sign * ((n + d / ROUNDING_DIVISOR) / d), scale };
 }

src/common/decorators/api-safe-error-response.decorator.ts

@@ -1,23 +1,32 @@
-import { HttpStatus, applyDecorators } from '@nestjs/common';
+import { applyDecorators, HttpStatus } from '@nestjs/common';
 import {
   ApiExtraModels,
   ApiProperty,
+  ApiPropertyOptional,
   ApiResponse,
   getSchemaPath,
 } from '@nestjs/swagger';
 
+import { HttpErrorCode } from '../error-code';
+
 export class ProblemDetailsDto {
   @ApiProperty({ example: 401 })
   declare status: number;
 
-  @ApiProperty({ example: 'UNAUTHORIZED' })
+  @ApiProperty({ example: HttpErrorCode.Unauthorized })
   declare code: string;
 
-  @ApiProperty({
-    required: false,
+  // eslint-disable-next-line @darraghor/nestjs-typed/api-property-returning-array-should-set-array -- Raw OpenAPI items schema already declares type: array.
+  @ApiPropertyOptional({
+    type: 'array',
+    items: {
+      type: 'object',
+      required: ['pointer', 'detail'],
+      properties: { pointer: { type: 'string' }, detail: { type: 'string' } },
+    },
     example: [{ pointer: '#/email', detail: 'must be a valid email address' }],
   })
-  errors?: { pointer: string; detail: string }[];
+  errors?: { detail: string; pointer: string }[];
 }
 
 function problemResponse(status: number, description: string) {
@@ -32,7 +41,7 @@ function problemResponse(status: number, description: string) {
   });
 }
 
-export function ApiProblemResponses(): MethodDecorator & ClassDecorator {
+export function ApiProblemResponses(): ClassDecorator & MethodDecorator {
   return applyDecorators(
     ApiExtraModels(ProblemDetailsDto),
     problemResponse(HttpStatus.BAD_REQUEST, 'Invalid request'),

src/common/dto-validation.spec.ts

@@ -1,15 +1,17 @@
 import { BadRequestException, ValidationPipe } from '@nestjs/common';
-import { CredentialsDto } from '../modules/auth/presentation/auth.dto';
+
+import { LoginDto, RegisterDto } from '../modules/auth/presentation/auth.dto';
 import {
   CreateBankCardDto,
   UpdateBankCardDto,
 } from '../modules/banking/bank-cards/presentation/bank-card.dto';
 
 describe('DTO validation', () => {
-  const pipe = new ValidationPipe({ transform: true, whitelist: true });
+  const pipe = new ValidationPipe({
+    forbidUnknownValues: true, transform: true, whitelist: true });
 
   it('requires credentials and normalizes a valid email', async () => {
-    const metadata = { type: 'body' as const, metatype: CredentialsDto };
+    const metadata = { type: 'body' as const, metatype: RegisterDto };
     await expect(pipe.transform({}, metadata)).rejects.toBeInstanceOf(
       BadRequestException,
     );
@@ -27,6 +29,59 @@ describe('DTO validation', () => {
     });
   });
 
+  // Test intent: register accepts 8..72 printable ASCII characters only (bcrypt
+  // reads 72 bytes, so non-ASCII could be silently truncated); login only caps
+  // bytes so accounts created under the older policy can still sign in.
+  describe('password policy', () => {
+    const register = { type: 'body' as const, metatype: RegisterDto };
+    const login = { type: 'body' as const, metatype: LoginDto };
+    const body = (password: string) => ({ email: 'user@example.com', password });
+    const accepts = (value: unknown, metadata: typeof login | typeof register) =>
+      pipe.transform(value, metadata).then(
+        () => true,
+        (error: unknown) => {
+          if (!(error instanceof BadRequestException)) throw error;
+          return false;
+        },
+      );
+
+    it.each([
+      ['7 chars', 'a'.repeat(7), false],
+      ['8 chars', 'a'.repeat(8), true],
+      ['72 chars', 'a'.repeat(72), true],
+      ['73 chars', 'a'.repeat(73), false],
+      ['all printable symbols and space', 'Aa1 !~"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}', true],
+      ['Cyrillic, 8+ chars', 'пароль-пароль', false],
+      ['emoji', 'passw😀rd', false],
+      ['tab', 'pass\tword1', false],
+      ['newline', 'password1\n', false],
+      ['DEL', 'password\x7f1', false],
+      ['non-string', 12345678, false],
+    ])('register: %s', async (_, password, accepted) => {
+      await expect(accepts(body(password as string), register)).resolves.toBe(accepted);
+    });
+
+    it('register keeps raw whitespace untouched', async () => {
+      const password = '  spaced pass  ';
+      await expect(pipe.transform(body(password), register)).resolves.toEqual(
+        body(password),
+      );
+    });
+
+    it.each([
+      ['legacy Cyrillic password', 'пароль-пароль', true],
+      ['short legacy password', 'short', true],
+      ['72 bytes', 'a'.repeat(72), true],
+      ['73 bytes', 'a'.repeat(73), false],
+      ['36 Cyrillic letters = 72 bytes', 'я'.repeat(36), true],
+      ['37 Cyrillic letters = 74 bytes', 'я'.repeat(37), false],
+      ['empty', '', false],
+      ['non-string', 12345678, false],
+    ])('login: %s', async (_, password, accepted) => {
+      await expect(accepts(body(password as string), login)).resolves.toBe(accepted);
+    });
+  });
+
   it('requires and validates nested money in a new card', async () => {
     const metadata = { type: 'body' as const, metatype: CreateBankCardDto };
     const card = {

src/common/error-code.ts

@@ -0,0 +1,8 @@
+export enum HttpErrorCode {
+  BadRequest = 'BAD_REQUEST',
+  InternalServerError = 'INTERNAL_SERVER_ERROR',
+  NotFound = 'NOT_FOUND',
+  Unauthorized = 'UNAUTHORIZED',
+  UnsupportedMediaType = 'UNSUPPORTED_MEDIA_TYPE',
+  ValidationError = 'VALIDATION_ERROR',
+}

src/common/filters/http-exception.filter.spec.ts

@@ -1,20 +1,29 @@
-import { ArgumentsHost } from '@nestjs/common';
+import { ArgumentsHost, BadRequestException } from '@nestjs/common';
+
+import { StructuredLogger } from '../logging/structured-logger.service';
 import { HttpExceptionFilter } from './http-exception.filter';
 
 describe('HttpExceptionFilter', () => {
-  it('does not expose internal error details', () => {
+  const setup = () => {
     const status = jest.fn().mockReturnThis();
     const type = jest.fn().mockReturnThis();
     const json = jest.fn();
     const locals: Record<string, unknown> = {};
-    const filter = new HttpExceptionFilter();
+    const logger = { event: jest.fn() };
+    const filter = new HttpExceptionFilter(logger as unknown as StructuredLogger);
     const host = {
       switchToHttp: () => ({
         getResponse: () => ({ status, type, json, locals }),
       }),
     } as unknown as ArgumentsHost;
+    return { filter, host, status, type, json, locals, logger };
+  };
 
-    filter.catch(new Error('database password: secret'), host);
+  it('logs unhandled errors with name and stack frames but never the message', () => {
+    const { filter, host, status, type, json, locals, logger } = setup();
+    const error = new Error('operation failed\npassword: SYNTHETIC_AUDIT_SECRET');
+
+    filter.catch(error, host);
 
     expect(status).toHaveBeenCalledWith(500);
     expect(type).toHaveBeenCalledWith('application/problem+json');
@@ -23,7 +32,29 @@ describe('HttpExceptionFilter', () => {
       code: 'INTERNAL_SERVER_ERROR',
     });
     expect(locals.publicErrorCode).toBe('INTERNAL_SERVER_ERROR');
-    expect(typeof locals.errorStack).toBe('string');
-    expect(locals.errorStack).not.toContain('database password: secret');
+    expect(logger.event).toHaveBeenCalledTimes(1);
+    const [level, event, fields] = logger.event.mock.calls[0] as [string, string, Record<string, unknown>];
+    expect(level).toBe('error');
+    expect(event).toBe('http.request.unhandled');
+    expect(fields).toMatchObject({ code: 'INTERNAL_SERVER_ERROR', errorName: 'Error' });
+    expect(JSON.stringify(fields)).not.toContain('SYNTHETIC_AUDIT_SECRET');
+    expect(String(fields['errorStack']).split('\n').every((line) => line.startsWith('    at '))).toBe(true);
+  });
+
+  it('logs field pointers without values for validation errors', () => {
+    const { filter, host, status, logger, locals } = setup();
+    const exception = new BadRequestException({
+      message: [
+        { property: 'amount', constraints: { isPositive: 'amount must be positive' }, value: -42 },
+        { property: 'amount', constraints: { min: 'amount too small' }, value: -42 },
+      ],
+    });
+
+    filter.catch(exception, host);
+
+    expect(status).toHaveBeenCalledWith(400);
+    expect(locals.invalidFields).toBe('#/amount');
+    expect(logger.event).not.toHaveBeenCalled();
+    expect(JSON.stringify(locals)).not.toContain('-42');
   });
 });

src/common/filters/http-exception.filter.ts

@@ -1,3 +1,5 @@
+import type { Response } from 'express';
+
 import {
   ArgumentsHost,
   Catch,
@@ -6,10 +8,14 @@ import {
   HttpStatus,
   ValidationError,
 } from '@nestjs/common';
-import type { Response } from 'express';
+
+import { HttpErrorCode } from '../error-code';
+import { StructuredLogger } from '../logging/structured-logger.service';
 
 @Catch()
 export class HttpExceptionFilter implements ExceptionFilter {
+  constructor(private readonly logger: StructuredLogger) {}
+
   catch(exception: unknown, host: ArgumentsHost): void {
     const context = host.switchToHttp();
     const response = context.getResponse<Response>();
@@ -24,17 +30,22 @@ export class HttpExceptionFilter implements ExceptionFilter {
       (payload as { message?: unknown })?.message,
     );
     const code = isValidation
-      ? 'VALIDATION_ERROR'
+      ? HttpErrorCode.ValidationError
       : this.codeFor(status, payload);
-    (response.locals ??= {}).publicErrorCode = code;
-    if (
-      status >= Number(HttpStatus.INTERNAL_SERVER_ERROR) &&
-      exception instanceof Error
-    )
-      response.locals.errorStack = exception.stack
-        ?.split('\n')
-        .slice(1)
-        .join('\n');
+    response.locals ??= {};
+    response.locals.publicErrorCode = code;
+    if (isValidation) {
+      response.locals.invalidFields = [
+        ...new Set(
+          this.validationErrors(
+            (payload as { message: ValidationError[] }).message,
+          ).map((error) => error.pointer),
+        ),
+      ].join(',');
+    }
+    if (!(exception instanceof HttpException)) {
+      this.logUnhandled(exception, code);
+    }
     response
       .status(status)
       .type('application/problem+json')
@@ -51,30 +62,51 @@ export class HttpExceptionFilter implements ExceptionFilter {
       });
   }
 
+  // ponytail: stack содержит текст message в первой строке; оставляем только кадры, message не пишем.
+  private logUnhandled(exception: unknown, code: string): void {
+    const error = exception instanceof Error ? exception : undefined;
+    const frames = (error?.stack ?? '')
+      .split('\n')
+      .filter((line) => line.startsWith('    at '))
+      .join('\n');
+    this.logger.event('error', 'http.request.unhandled', {
+      code,
+      errorName: error?.name ?? typeof exception,
+      errorStack: frames,
+    });
+  }
+
   private codeFor(status: number, payload: unknown): string {
     if (typeof payload === 'object' && payload !== null && 'code' in payload) {
       const code = (payload as { code?: unknown }).code;
       if (typeof code === 'string') return code;
     }
     return (
+      // eslint-disable-next-line security/detect-object-injection -- The lookup key is a numeric HTTP status, never a property name from the request.
       {
-        400: 'BAD_REQUEST',
-        401: 'UNAUTHORIZED',
-        404: 'NOT_FOUND',
-        415: 'UNSUPPORTED_MEDIA_TYPE',
-        500: 'INTERNAL_SERVER_ERROR',
-      }[status] ?? 'INTERNAL_SERVER_ERROR'
+        400: HttpErrorCode.BadRequest,
+        401: HttpErrorCode.Unauthorized,
+        404: HttpErrorCode.NotFound,
+        415: HttpErrorCode.UnsupportedMediaType,
+        500: HttpErrorCode.InternalServerError,
+      }[status] ?? HttpErrorCode.InternalServerError
     );
   }
 
   private validationErrors(
     errors: ValidationError[],
-  ): { pointer: string; detail: string }[] {
-    return errors.flatMap((error) =>
-      Object.values(error.constraints ?? {}).map((detail) => ({
-        pointer: `#/${error.property}`,
-        detail,
-      })),
-    );
+    prefix = '#',
+  ): { detail: string; pointer: string }[] {
+    return errors.flatMap((error) => {
+      if (!error || typeof error.property !== 'string') return [];
+      const pointer = `${prefix}/${error.property.replaceAll('~', '~0').replaceAll('/', '~1')}`;
+      return [
+        ...Object.values(error.constraints ?? {}).map((detail) => ({
+          pointer,
+          detail,
+        })),
+        ...this.validationErrors(error.children ?? [], pointer),
+      ];
+    });
   }
 }

src/common/logging/logging.module.ts

@@ -1,15 +1,71 @@
+import type { Request, Response } from 'express';
+import type { Options } from 'pino-http';
+
 import { Global, Module } from '@nestjs/common';
-import { RequestContextService } from './request-context.service';
-import { RequestLoggingMiddleware } from './request-logging.middleware';
+import { ConfigService } from '@nestjs/config';
+import { LoggerModule } from 'nestjs-pino';
+import { randomUUID } from 'node:crypto';
+import { constants as httpStatus } from 'node:http2';
+
+import { Environment } from '../../config/env.validation';
 import { StructuredLogger } from './structured-logger.service';
 
+const uuid = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+
+function completion(request: Request, response: Response, value: { responseTime: number }) {
+  const route: unknown = request.route;
+  const path = typeof route === 'object' && route !== null && 'path' in route &&
+    typeof route.path === 'string'
+    ? `${request.baseUrl}${route.path}`
+    : '<unmatched>';
+  return {
+    method: request.method,
+    route: path,
+    status: response.statusCode,
+    durationMs: Math.round(value.responseTime),
+    ...(typeof response.locals.publicErrorCode === 'string' ? { code: response.locals.publicErrorCode } : {}),
+    ...(typeof response.locals.invalidFields === 'string' ? { invalidFields: response.locals.invalidFields } : {}),
+  };
+}
+
+export function loggingOptions(config: ConfigService<Environment, true>): Options<Request, Response> {
+  return {
+    level: config.getOrThrow('LOG_LEVEL'),
+    messageKey: 'message',
+    // ponytail: development-only pretty output; production never loads pino-pretty.
+    ...(process.env['NODE_ENV'] === 'development'
+      ? { transport: { target: 'pino-pretty', options: { colorize: true, singleLine: true, messageKey: 'message' } } }
+      : {}),
+    genReqId: (_request, response) => {
+      const id = randomUUID();
+      response.setHeader('X-Request-ID', id);
+      return id;
+    },
+    customProps: (request) => {
+      const incoming = request.header('x-request-id');
+      return { requestId: request.id, ...(incoming && uuid.test(incoming) ? { clientRequestId: incoming } : {}) };
+    },
+    customLogLevel: (_request, response) => {
+      if (response.statusCode >= httpStatus.HTTP_STATUS_INTERNAL_SERVER_ERROR) return 'error';
+      if ([httpStatus.HTTP_STATUS_FORBIDDEN, httpStatus.HTTP_STATUS_TOO_MANY_REQUESTS, httpStatus.HTTP_STATUS_UNAUTHORIZED].includes(response.statusCode)) return 'warn';
+      return 'info';
+    },
+    customSuccessMessage: () => 'http.request.completed',
+    customErrorMessage: () => 'http.request.completed',
+    customSuccessObject: completion,
+    customErrorObject: (request, response, _error, value: { responseTime: number }) => completion(request, response, value),
+    redact: ['req.headers.authorization', 'req.headers.cookie', 'req.body'],
+    serializers: { req: () => undefined },
+  };
+}
+
 @Global()
 @Module({
-  providers: [
-    RequestContextService,
-    RequestLoggingMiddleware,
-    StructuredLogger,
-  ],
-  exports: [RequestContextService, RequestLoggingMiddleware, StructuredLogger],
+  imports: [LoggerModule.forRootAsync<Request, Response>({
+    inject: [ConfigService],
+    useFactory: (config: ConfigService<Environment, true>) => ({ pinoHttp: loggingOptions(config), assignResponse: true }),
+  })],
+  providers: [StructuredLogger],
+  exports: [StructuredLogger],
 })
 export class LoggingModule {}

src/common/logging/request-context.service.ts

@@ -1,27 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { AsyncLocalStorage } from 'node:async_hooks';
-
-export type RequestLogContext = {
-  requestId: string;
-  clientRequestId?: string;
-  userId?: string;
-  brokerageAccountId?: string;
-};
-
-@Injectable()
-export class RequestContextService {
-  private readonly storage = new AsyncLocalStorage<RequestLogContext>();
-
-  run<T>(context: RequestLogContext, callback: () => T): T {
-    return this.storage.run(context, callback);
-  }
-
-  get(): RequestLogContext | undefined {
-    return this.storage.getStore();
-  }
-
-  set(context: Partial<RequestLogContext>): void {
-    const current = this.storage.getStore();
-    if (current) Object.assign(current, context);
-  }
-}

src/common/logging/request-logging.middleware.spec.ts

@@ -1,53 +0,0 @@
-import { EventEmitter } from 'node:events';
-import { RequestLoggingMiddleware } from './request-logging.middleware';
-
-describe('RequestLoggingMiddleware', () => {
-  it('returns a server ID and emits one safe completion event', () => {
-    const requestContext = {
-      run: jest.fn((_: unknown, next: () => void) => next()),
-    };
-    const logger = { event: jest.fn() };
-    const middleware = new RequestLoggingMiddleware(
-      requestContext as never,
-      logger as never,
-    );
-    const response = Object.assign(new EventEmitter(), {
-      statusCode: 200,
-      locals: {},
-      setHeader: jest.fn(),
-    });
-    const next = jest.fn();
-
-    const request: {
-      method: string;
-      baseUrl: string;
-      route: { path: string };
-      header: jest.Mock<string>;
-      id?: string;
-    } = {
-      method: 'GET',
-      baseUrl: '/api/v1',
-      route: { path: '/accounts/:id' },
-      header: jest.fn(() => 'a2dc6fbb-5a48-4c3c-9e3e-4fbf4d638a43'),
-    };
-    middleware.use(request as never, response as never, next);
-    response.emit('finish');
-
-    expect(response.setHeader).toHaveBeenCalledWith(
-      'X-Request-ID',
-      expect.stringMatching(/^[0-9a-f-]{36}$/i),
-    );
-    expect(request.id).toMatch(/^[0-9a-f-]{36}$/i);
-    expect(requestContext.run).toHaveBeenCalledWith(
-      expect.objectContaining({
-        clientRequestId: 'a2dc6fbb-5a48-4c3c-9e3e-4fbf4d638a43',
-      }),
-      next,
-    );
-    expect(logger.event).toHaveBeenCalledWith(
-      'info',
-      'http.request.completed',
-      expect.objectContaining({ route: '/api/v1/accounts/:id', status: 200 }),
-    );
-  });
-});

src/common/logging/request-logging.middleware.ts

@@ -1,68 +0,0 @@
-import { constants as httpStatus } from 'node:http2';
-import { Injectable, NestMiddleware } from '@nestjs/common';
-import type { NextFunction, Request, Response } from 'express';
-import { randomUUID } from 'node:crypto';
-import { RequestContextService } from './request-context.service';
-import { StructuredLogger } from './structured-logger.service';
-
-const uuid =
-  /^[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
-
-@Injectable()
-export class RequestLoggingMiddleware implements NestMiddleware {
-  constructor(
-    private readonly requestContext: RequestContextService,
-    private readonly logger: StructuredLogger,
-  ) {}
-
-  use(request: Request, response: Response, next: NextFunction): void {
-    const incoming = request.header('x-request-id');
-    const clientRequestId =
-      incoming && uuid.test(incoming) ? incoming : undefined;
-    const existingRequestId = (request as Request & { id?: unknown }).id;
-    const requestId =
-      typeof existingRequestId === 'string' ? existingRequestId : randomUUID();
-    (request as unknown as { id: string }).id = requestId;
-    const startedAt = performance.now();
-
-    response.setHeader('X-Request-ID', requestId);
-    response.on('finish', () => {
-      const routeRequest: unknown = request;
-      const routePath = (routeRequest as { route?: { path?: unknown } }).route
-        ?.path;
-      const route =
-        typeof routePath === 'string'
-          ? `${request.baseUrl}${routePath}`
-          : '<unmatched>';
-      const context = {
-        method: request.method,
-        route,
-        status: response.statusCode,
-        durationMs: Math.round(performance.now() - startedAt),
-        ...(response.locals.publicErrorCode
-          ? { code: response.locals.publicErrorCode as string }
-          : {}),
-        ...(response.locals.errorStack
-          ? { stack: response.locals.errorStack as string }
-          : {}),
-      };
-      const level =
-        response.statusCode >= httpStatus.HTTP_STATUS_INTERNAL_SERVER_ERROR
-          ? 'error'
-          : response.statusCode === httpStatus.HTTP_STATUS_TOO_MANY_REQUESTS ||
-              response.statusCode === httpStatus.HTTP_STATUS_UNAUTHORIZED ||
-              response.statusCode === httpStatus.HTTP_STATUS_FORBIDDEN
-            ? 'warn'
-            : 'info';
-      this.logger.event(level, 'http.request.completed', context);
-    });
-
-    this.requestContext.run(
-      {
-        requestId,
-        ...(clientRequestId ? { clientRequestId } : {}),
-      },
-      next,
-    );
-  }
-}

src/common/logging/structured-logger.service.spec.ts

@@ -1,7 +1,6 @@
 import { StructuredLogger } from './structured-logger.service';
 
 describe('StructuredLogger', () => {
-  const context = { get: jest.fn() };
   const pino = {
     debug: jest.fn(),
     info: jest.fn(),
@@ -12,10 +11,10 @@ describe('StructuredLogger', () => {
   beforeEach(() => jest.clearAllMocks());
 
   it('passes only allowlisted fields to Pino', () => {
-    context.get.mockReturnValue({ requestId: 'request', token: 'secret' });
-    const logger = new StructuredLogger(context as never, pino as never);
+    const logger = new StructuredLogger(pino as never);
 
     logger.info('event', {
+      asOf: '2026-10-10T12:00:00.000Z',
       userId: 'user',
       brokerageAccountId: 'account',
       password: 'secret',
@@ -23,7 +22,7 @@ describe('StructuredLogger', () => {
 
     expect(pino.info).toHaveBeenCalledWith(
       {
-        requestId: 'request',
+        asOf: '2026-10-10T12:00:00.000Z',
         userId: 'user',
         brokerageAccountId: 'account',
       },
@@ -32,8 +31,7 @@ describe('StructuredLogger', () => {
   });
 
   it('delegates event levels to Pino', () => {
-    context.get.mockReturnValue(undefined);
-    const logger = new StructuredLogger(context as never, pino as never);
+    const logger = new StructuredLogger(pino as never);
 
     logger.event('debug', 'debug event');
     logger.event('warn', 'warn event');

src/common/logging/structured-logger.service.ts

@@ -1,36 +1,40 @@
 import { Injectable, OnApplicationShutdown } from '@nestjs/common';
 import { PinoLogger } from 'nestjs-pino';
-import { RequestContextService } from './request-context.service';
 
-type LogLevel = 'debug' | 'info' | 'warn' | 'error';
-type LogContext = Record<string, string | number | boolean | undefined>;
+type LogLevel = 'debug' | 'error' | 'info' | 'warn';
+type LogContext = Record<string, boolean | number | string | undefined>;
 
 const allowedFields = new Set([
-  'service',
-  'environment',
-  'requestId',
-  'clientRequestId',
-  'userId',
-  'brokerageAccountId',
-  'method',
-  'route',
-  'status',
-  'durationMs',
-  'code',
-  'stack',
-  'operation',
-  'grpcCode',
+  'asOf',
   'attempts',
+  'brokerageAccountId',
+  'channelState',
+  'clientRequestId',
+  'code',
   'count',
+  'durationMs',
+  'environment',
+  'errorName',
+  'errorStack',
   'found',
+  'grpcCode',
+  'headersReceived',
+  'invalidFields',
+  'method',
+  'networkMs',
+  'operation',
+  'queueWaitMs',
+  'requestId',
+  'route',
+  'service',
+  'status',
+  'trackingId',
+  'userId',
 ]);
 
 @Injectable()
 export class StructuredLogger implements OnApplicationShutdown {
-  constructor(
-    private readonly requestContext: RequestContextService,
-    private readonly pino: PinoLogger,
-  ) {}
+  constructor(private readonly pino: PinoLogger) {}
 
   info(message: string, context?: LogContext): void {
     this.write('info', message, context);
@@ -49,8 +53,9 @@ export class StructuredLogger implements OnApplicationShutdown {
     message: string,
     context: LogContext = {},
   ): void {
+    // eslint-disable-next-line security/detect-object-injection -- The log level is restricted to the internal LogLevel union.
     this.pino[level](
-      this.safeContext({ ...this.requestContext.get(), ...context }),
+      this.safeContext(context),
       message,
     );
   }

src/common/money.dto.ts

@@ -1,4 +1,5 @@
 import { ApiProperty } from '@nestjs/swagger';
+
 import type { Money } from './money.types';
 
 export class MoneyDto implements Money {

src/common/time.ts

@@ -1,2 +1,4 @@
+export const ISO_DATE_LENGTH = 10;
+export const ISO_DATE_START = 0;
 export const MILLISECONDS_PER_SECOND = 1_000;
 export const MILLISECONDS_PER_DAY = 86_400_000;

src/config/env.validation.ts

@@ -1,3 +1,6 @@
+const MIN_PORT = 1;
+const MIN_REQUESTS_PER_SECOND = 1;
+
 const DEFAULT_PORT = 3000;
 const DEFAULT_TBANK_RATE_LIMIT_PER_SECOND = 5;
 const MAX_PORT = 65_535;
@@ -7,12 +10,12 @@ export interface Environment {
   DATABASE_URL: string;
   FRONTEND_ORIGIN: string;
   JWT_SECRET: string;
+  LOG_LEVEL: 'debug' | 'error' | 'info' | 'warn';
   PORT: number;
-  TOKEN_ENCRYPTION_KEY: string;
   TBANK_CA_CERT_PATH?: string;
   TBANK_GRPC_ENDPOINT: string;
   TBANK_RATE_LIMIT_PER_SECOND: number;
-  LOG_LEVEL: 'debug' | 'info' | 'warn' | 'error';
+  TOKEN_ENCRYPTION_KEY: string;
 }
 
 export function validateEnv(config: Record<string, unknown>): Environment {
@@ -56,7 +59,7 @@ export function validateEnv(config: Record<string, unknown>): Environment {
   const parsedPort = Number(port);
   if (
     !Number.isInteger(parsedPort) ||
-    parsedPort < 1 ||
+    parsedPort < MIN_PORT ||
     parsedPort > MAX_PORT
   ) {
     throw new Error('PORT must be a valid port number');
@@ -71,7 +74,7 @@ export function validateEnv(config: Record<string, unknown>): Environment {
 
   if (
     typeof tokenEncryptionKey !== 'string' ||
-    !/^[A-Za-z0-9+/]+={0,2}$/.test(tokenEncryptionKey) ||
+    !/^[A-Z0-9+/]+={0,2}$/i.test(tokenEncryptionKey) ||
     Buffer.from(tokenEncryptionKey, 'base64').length !== TOKEN_KEY_BYTES
   ) {
     throw new Error(
@@ -84,7 +87,7 @@ export function validateEnv(config: Record<string, unknown>): Environment {
   }
 
   const parsedTbankRateLimit = Number(tbankRateLimit);
-  if (!Number.isInteger(parsedTbankRateLimit) || parsedTbankRateLimit < 1) {
+  if (!Number.isInteger(parsedTbankRateLimit) || parsedTbankRateLimit < MIN_REQUESTS_PER_SECOND) {
     throw new Error('TBANK_RATE_LIMIT_PER_SECOND must be a positive integer');
   }
 
@@ -92,7 +95,7 @@ export function validateEnv(config: Record<string, unknown>): Environment {
     throw new Error('TBANK_CA_CERT_PATH must be a file path');
   }
 
-  if (!['debug', 'info', 'warn', 'error'].includes(logLevel as string)) {
+  if (!['debug', 'error', 'info', 'warn'].includes(logLevel as string)) {
     throw new Error('LOG_LEVEL must be debug, info, warn, or error');
   }
 

src/integrations/moex/moex.client.spec.ts

@@ -1,5 +1,11 @@
 import { MoexClient } from './moex.client';
 
+const emptyEvents = {
+  coupons: { columns: ['coupondate', 'value', 'faceunit'], data: [] },
+  offers: { columns: ['offerdate'], data: [] },
+  description: { columns: ['name', 'value'], data: [] },
+};
+
 describe('MoexClient', () => {
   afterEach(() => jest.restoreAllMocks());
   it('uses effective yield only for the exact ISIN and board and preserves its own price and date', async () => {
@@ -92,17 +98,179 @@ describe('MoexClient', () => {
       expect(result?.value ?? null).toBe(value === null ? null : '0');
     },
   );
-  it('treats a successful response without the requested block as no events', async () => {
-    const fetchMock = jest.spyOn(global, 'fetch').mockResolvedValue({
-      ok: true,
-      json: () =>
-        Promise.resolve({
-          description: { columns: ['name', 'value'], data: [] },
-          boards: { columns: ['secid'], data: [] },
-        }),
-    } as Response);
-
+  it('accepts confirmed empty blocks', async () => {
+    jest
+      .spyOn(global, 'fetch')
+      .mockImplementation(() => Promise.resolve(Response.json(emptyEvents)));
     await expect(new MoexClient().bondEvents('BOND')).resolves.toEqual([]);
-    fetchMock.mockRestore();
   });
+
+  it('preserves not-found semantics independently of malformed HTTP 200', async () => {
+    jest
+      .spyOn(global, 'fetch')
+      .mockImplementation(() =>
+        Promise.resolve(new Response(null, { status: 404 })),
+      );
+    const client = new MoexClient();
+    await expect(client.bondEvents('MISSING')).resolves.toEqual([]);
+    await expect(
+      client.bondYield('MISSING', 'ISIN', 'TQOB'),
+    ).resolves.toBeNull();
+  });
+
+  it.each([
+    ['missing block', { coupons: undefined }],
+    ['missing columns', { coupons: { data: [] } }],
+    ['invalid column', { coupons: { columns: [null], data: [] } }],
+    ['invalid row', { coupons: { columns: ['coupondate'], data: [null] } }],
+    [
+      'short row',
+      { coupons: { columns: ['coupondate', 'value'], data: [['2099-02-01']] } },
+    ],
+    [
+      'long row',
+      { coupons: { columns: ['coupondate'], data: [['2099-02-01', 2]] } },
+    ],
+    [
+      'empty cursor',
+      {
+        'coupons.cursor': { columns: ['INDEX', 'TOTAL', 'PAGESIZE'], data: [] },
+      },
+    ],
+    [
+      'missing cursor field',
+      { 'coupons.cursor': { columns: ['INDEX', 'TOTAL'], data: [[0, 1]] } },
+    ],
+    [
+      'null cursor index',
+      {
+        'coupons.cursor': {
+          columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+          data: [[null, 0, 1]],
+        },
+      },
+    ],
+    [
+      'boolean cursor total',
+      {
+        'coupons.cursor': {
+          columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+          data: [[0, false, 1]],
+        },
+      },
+    ],
+    [
+      'empty cursor total',
+      {
+        'coupons.cursor': {
+          columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+          data: [[0, '', 1]],
+        },
+      },
+    ],
+    [
+      'short page',
+      {
+        'coupons.cursor': {
+          columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+          data: [[0, 1, 1]],
+        },
+      },
+    ],
+  ])(
+    'rejects %s without returning a partial calendar',
+    async (_name, invalid) => {
+      jest
+        .spyOn(global, 'fetch')
+        .mockImplementation(() =>
+          Promise.resolve(Response.json({ ...emptyEvents, ...invalid })),
+        );
+      await expect(new MoexClient().bondEvents('BOND')).rejects.toMatchObject({
+        response: { code: 'MOEX_UNAVAILABLE' },
+      });
+    },
+  );
+
+  it.each([0, -1])(
+    'rejects nonpositive page size %s before repeating a fetch',
+    async (pageSize) => {
+      const starts: string[] = [];
+      jest.spyOn(global, 'fetch').mockImplementation((input) => {
+        const url = new URL(input instanceof Request ? input.url : input);
+        if (url.searchParams.get('iss.only')?.startsWith('coupons,')) {
+          starts.push(url.searchParams.get('start') ?? '');
+          if (starts.length > 1) {
+            return Promise.reject(new Error('Repeated page'));
+          }
+        }
+        return Promise.resolve(
+          Response.json({
+            ...emptyEvents,
+            'coupons.cursor': {
+              columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+              data: [[0, 1, pageSize]],
+            },
+          }),
+        );
+      });
+      await expect(new MoexClient().bondEvents('BOND')).rejects.toMatchObject({
+        response: { code: 'MOEX_UNAVAILABLE' },
+      });
+      expect(starts).toEqual(['0']);
+    },
+  );
+
+  it.each([false, true])(
+    'reads all cursor pages and rejects a repeated index: %s',
+    async (repeatIndex) => {
+      const starts: string[] = [];
+      jest.spyOn(global, 'fetch').mockImplementation((input) => {
+        const url = new URL(input instanceof Request ? input.url : input);
+        const start = Number(url.searchParams.get('start'));
+        if (url.searchParams.get('iss.only')?.startsWith('coupons,')) {
+          starts.push(String(start));
+          if (starts.length > 2) {
+            return Promise.reject(new Error('Repeated page'));
+          }
+        }
+        return Promise.resolve(
+          Response.json({
+            ...emptyEvents,
+            'coupons': {
+              columns: ['coupondate', 'value', 'faceunit'],
+              data: [[`2099-02-0${start + 1}`, '2.000000001', 'SUR']],
+            },
+            'coupons.cursor': {
+              columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+              data: [[repeatIndex ? 0 : start, 2, 1]],
+            },
+          }),
+        );
+      });
+      const result = new MoexClient().bondEvents('BOND');
+      if (repeatIndex) {
+        // eslint-disable-next-line jest/no-conditional-expect -- The parameterized fixture chooses the scenario; each branch asserts its outcome and the test also asserts common invariants.
+        await expect(result).rejects.toMatchObject({
+          response: { code: 'MOEX_UNAVAILABLE' },
+        });
+      } else {
+        // eslint-disable-next-line jest/no-conditional-expect -- The parameterized fixture chooses the scenario; each branch asserts its outcome and the test also asserts common invariants.
+        await expect(result).resolves.toEqual([
+          {
+            type: 'coupon',
+            date: '2099-02-01',
+            value: '2.000000001',
+            currency: 'RUB',
+          },
+          {
+            type: 'coupon',
+            date: '2099-02-02',
+            value: '2.000000001',
+            currency: 'RUB',
+          },
+        ]);
+      }
+      expect(starts).toEqual(['0', '1']);
+    },
+  );
 });

src/integrations/moex/moex.client.ts

@@ -1,5 +1,13 @@
-import { constants as httpStatus } from 'node:http2';
 import { Injectable, ServiceUnavailableException } from '@nestjs/common';
+import { constants as httpStatus } from 'node:http2';
+
+enum MoexErrorCode { Unavailable = 'MOEX_UNAVAILABLE' }
+
+const MIN_PRICE_PERCENT_EXCLUSIVE = 0;
+const FIRST_PAGE_OFFSET = 0;
+const EXPECTED_CURSOR_ROWS = 1;
+const EMPTY_PAGE_SIZE = 0;
+const MIN_CURSOR_VALUE = 0;
 
 const FALLBACK_PAGE_SIZE = 100;
 
@@ -7,18 +15,18 @@ const baseUrl = 'https://iss.moex.com/iss';
 const timeoutMs = 10_000;
 
 export type MoexBondEvent =
-  | { type: 'coupon'; date: string; value: string; currency: string }
-  | { type: 'maturity'; date: string; value: string; currency: string }
-  | { type: 'offer'; date: string };
+  | { currency: string; date: string; type: 'coupon'; value: string } |
+  { currency: string; date: string; type: 'maturity'; value: string } |
+  { date: string; type: 'offer' };
 
 type IssBlock = { columns?: unknown; data?: unknown };
 type IssResponse = Record<string, IssBlock | undefined>;
 export type MoexBondYield = {
-  value: string;
-  pricePercent: string;
   date: string;
-  dateType: string | null;
+  dateType: null | string;
+  pricePercent: string;
   tradeAt: string;
+  value: string;
 };
 
 @Injectable()
@@ -52,14 +60,15 @@ export class MoexClient {
     if (
       value === null ||
       pricePercent === null ||
-      Number(pricePercent) <= 0 ||
+      Number(pricePercent) <= MIN_PRICE_PERCENT_EXCLUSIVE ||
       !date ||
       !/^\d{4}-\d{2}-\d{2}$/.test(date) ||
       !Number.isFinite(Date.parse(date)) ||
       !tradeAt ||
       !/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/.test(tradeAt)
-    )
+    ) {
       return null;
+    }
     const tradeIso = `${tradeAt.replace(' ', 'T')}+03:00`;
     if (!Number.isFinite(Date.parse(tradeIso))) return null;
     return {
@@ -70,6 +79,7 @@ export class MoexClient {
       tradeAt: new Date(tradeIso).toISOString(),
     };
   }
+
   async bondEvents(secid: string): Promise<MoexBondEvent[]> {
     const path = `securities/${encodeURIComponent(secid)}/bondization.json`;
     const [coupons, offers, description] = await Promise.all([
@@ -86,8 +96,9 @@ export class MoexClient {
       const date = text(row.coupondate);
       const value = numberText(row.value);
       const currency = currencyText(row.faceunit);
-      if (date && value && currency)
+      if (date && value && currency) {
         events.push({ type: 'coupon', date, value, currency });
+      }
     }
     for (const row of offers) {
       const date = text(row.offerdate);
@@ -99,8 +110,9 @@ export class MoexClient {
     const date = values.get('MATDATE');
     const value = numberText(values.get('FACEVALUE'));
     const currency = currencyText(values.get('FACEUNIT'));
-    if (date && value && currency)
+    if (date && value && currency) {
       events.push({ type: 'maturity', date, value, currency });
+    }
     return events;
   }
 
@@ -110,35 +122,41 @@ export class MoexClient {
     paginated = true,
   ): Promise<Record<string, unknown>[]> {
     const rows: Record<string, unknown>[] = [];
-    let start = 0;
+    let start = FIRST_PAGE_OFFSET;
     for (;;) {
       const query = new URLSearchParams({
         'iss.meta': 'off',
         'iss.only': `${block},${block}.cursor`,
-        start: String(start),
+        'start': String(start),
       });
       const response = await this.request(`${baseUrl}/${path}?${query}`);
       if (!response) return rows;
+      // eslint-disable-next-line security/detect-object-injection -- Keys are fixed MOEX block names; row indexes come from the validated columns array.
       const current = parseRows(response[block]);
       rows.push(...current);
       if (!paginated) return rows;
       const cursorBlock = response[`${block}.cursor`];
-      if (!cursorBlock) {
+      if (cursorBlock === undefined) {
         if (current.length < FALLBACK_PAGE_SIZE) return rows;
         start += FALLBACK_PAGE_SIZE;
         continue;
       }
-      const cursor = parseRows(cursorBlock)[0];
+      const cursors = parseRows(cursorBlock);
+      const cursor = cursors[0];
       const index = integer(cursor?.index);
       const total = integer(cursor?.total);
       const pageSize = integer(cursor?.pagesize);
       if (
-        index === null ||
+        cursors.length !== EXPECTED_CURSOR_ROWS ||
+        index !== start ||
         total === null ||
         pageSize === null ||
-        index + pageSize >= total
-      )
-        return rows;
+        pageSize === EMPTY_PAGE_SIZE ||
+        current.length !== Math.min(pageSize, total - start)
+      ) {
+        throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+      }
+      if (index + pageSize >= total) return rows;
       start = index + pageSize;
     }
   }
@@ -151,46 +169,51 @@ export class MoexClient {
       if (response.status === httpStatus.HTTP_STATUS_NOT_FOUND) return null;
       if (!response.ok) throw new Error(`MOEX HTTP ${response.status}`);
       const body: unknown = await response.json();
-      if (!body || typeof body !== 'object')
+      if (!body || typeof body !== 'object') {
         throw new Error('MOEX malformed response');
+      }
       return body as IssResponse;
     } catch {
-      throw new ServiceUnavailableException({ code: 'MOEX_UNAVAILABLE' });
+      throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
     }
   }
 }
 
 function parseRows(block: IssBlock | undefined): Record<string, unknown>[] {
-  if (!block) return [];
-  if (!Array.isArray(block.columns) || !Array.isArray(block.data))
-    throw new ServiceUnavailableException({ code: 'MOEX_UNAVAILABLE' });
+  if (!Array.isArray(block?.columns) || !Array.isArray(block?.data)) {
+    throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+  }
   const columns = block.columns;
-  if (!columns.every((column) => typeof column === 'string'))
-    throw new ServiceUnavailableException({ code: 'MOEX_UNAVAILABLE' });
+  if (!columns.every((column) => typeof column === 'string')) {
+    throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+  }
   return block.data.map((values) => {
-    if (!Array.isArray(values))
-      throw new ServiceUnavailableException({ code: 'MOEX_UNAVAILABLE' });
+    if (!Array.isArray(values) || values.length !== columns.length) {
+      throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+    }
     return Object.fromEntries(
+      // eslint-disable-next-line security/detect-object-injection -- Keys are fixed MOEX block names; row indexes come from the validated columns array.
       columns.map((column, index) => [column.toLowerCase(), values[index]]),
     );
   });
 }
 
-function text(value: unknown): string | null {
+function text(value: unknown): null | string {
   return typeof value === 'string' && value.trim() ? value.trim() : null;
 }
 
-function numberText(value: unknown): string | null {
+function numberText(value: unknown): null | string {
   const result = typeof value === 'number' ? String(value) : text(value);
+  // eslint-disable-next-line security/detect-unsafe-regex -- Anchored decimal grammar: the literal decimal point separates disjoint digit runs; backtracking is linear.
   return result && /^-?\d+(?:\.\d+)?$/.test(result) ? result : null;
 }
 
-function currencyText(value: unknown): string | null {
+function currencyText(value: unknown): null | string {
   const result = text(value)?.toUpperCase();
   return result === 'SUR' ? 'RUB' : (result ?? null);
 }
 
-function integer(value: unknown): number | null {
-  const result = Number(value);
-  return Number.isSafeInteger(result) && result >= 0 ? result : null;
+function integer(value: unknown): null | number {
+  const result = Number(numberText(value) ?? NaN);
+  return Number.isSafeInteger(result) && result >= MIN_CURSOR_VALUE ? result : null;
 }

src/integrations/moex/moex.module.ts

@@ -1,4 +1,5 @@
 import { Module } from '@nestjs/common';
+
 import { MoexClient } from './moex.client';
 
 @Module({

src/integrations/ncr/ncr-ratings.client.spec.ts

@@ -1,4 +1,5 @@
 import { ServiceUnavailableException } from '@nestjs/common';
+
 import { NcrRatingsClient } from './ncr-ratings.client';
 const isin = 'RU000A10EW44';
 const row = (value = 'AAA.ru', code = isin, href = '/ratings/issues/123/') =>
@@ -65,6 +66,18 @@ describe('public NCR issue ratings', () => {
       );
     },
   );
+  it.each(['AA+.ru', 'B-.ru', 'BBB+.ru', 'CCC-.ru', 'CC.ru', 'D.ru'])(
+    'accepts the public rating grammar: %s', async (value) => {
+      jest.spyOn(global, 'fetch').mockResolvedValue(response(table(row(value))));
+      expect(await new NcrRatingsClient().rating(isin)).toMatchObject({ value });
+    },
+  );
+  it.each(['AAA+.ru', 'CC-.ru', 'BBBB.ru', 'BBB++.ru'])(
+    'rejects invalid rating grades: %s', async (value) => {
+      jest.spyOn(global, 'fetch').mockResolvedValue(response(table(row(value))));
+      await expect(new NcrRatingsClient().rating(isin)).rejects.toBeInstanceOf(ServiceUnavailableException);
+    },
+  );
   it('bounds outage retries then recovers without retaining a false missing rating', async () => {
     const fetchMock = jest
       .spyOn(global, 'fetch')

src/integrations/ncr/ncr-ratings.client.ts

@@ -2,6 +2,13 @@ import { Injectable, ServiceUnavailableException } from '@nestjs/common';
 import { load } from 'cheerio';
 import { LRUCache } from 'lru-cache';
 
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../common/time';
+
+enum NcrErrorCode { Unavailable = 'NCR_UNAVAILABLE' }
+
+const EXPECTED_REGISTRY_TABLES = 1;
+const RATING_COLUMN = 2;
+
 const REGISTRY_CACHE_TTL_MS = 21_600_000;
 const REQUEST_TIMEOUT_MS = 10_000;
 const COLUMN_COUNT = 6;
@@ -11,11 +18,11 @@ const DATE_COLUMN = 5;
 const registryUrl = 'https://ratings.ru/ratings/issues/';
 export type NcrRating = {
   agency: 'NCR';
-  value: string | null;
-  status: 'active' | 'withdrawn';
   date: string;
-  sourceUrl: string;
   observedAt: string;
+  sourceUrl: string;
+  status: 'active' | 'withdrawn';
+  value: null | string;
 };
 
 @Injectable()
@@ -33,9 +40,10 @@ export class NcrRatingsClient {
     if (!pending) {
       pending = this.registry().catch(() => {
         // Bound outage traffic too; never present a failed download as no rating.
-        if (this.cache.get('registry') === pending)
+        if (this.cache.get('registry') === pending) {
           this.cache.set('registry', pending, { ttl: 60_000 });
-        throw new ServiceUnavailableException({ code: 'NCR_UNAVAILABLE' });
+        }
+        throw new ServiceUnavailableException({ code: NcrErrorCode.Unavailable });
       });
       this.cache.set('registry', pending);
     }
@@ -54,13 +62,16 @@ export class NcrRatingsClient {
       .map((_, cell) => $(cell).text().trim())
       .get();
     if (
-      table.length !== 1 ||
+      table.length !== EXPECTED_REGISTRY_TABLES ||
       headings.length !== COLUMN_COUNT ||
       headings[2] !== 'Рейтинг' ||
+      // eslint-disable-next-line security/detect-object-injection -- Column indexes are local numeric constants.
       headings[ISIN_COLUMN] !== 'ISIN' ||
+      // eslint-disable-next-line security/detect-object-injection -- Column indexes are local numeric constants.
       headings[DATE_COLUMN] !== 'Дата'
-    )
+    ) {
       throw new Error('NCR registry changed');
+    }
     const observedAt = new Date().toISOString();
     const result = new Map<string, NcrRating>();
     table.find('tbody tr').each((_, row) => {
@@ -69,27 +80,30 @@ export class NcrRatingsClient {
       const isin = cells.eq(ISIN_COLUMN).text().trim().toUpperCase();
       // Unassigned issues cannot safely be matched to a held instrument.
       if (!/^[A-Z]{2}[A-Z0-9]{9}\d$/.test(isin)) return;
-      const raw = cells.eq(2).text().replace(/\s+/g, ' ').trim();
+      const raw = cells.eq(RATING_COLUMN).text().replace(/\s+/g, ' ').trim();
       const withdrawn = raw.toLowerCase() === 'рейтинг отозван';
       if (
         !withdrawn &&
-        !/^(AAA|AA[+-]?|A[+-]?|BBB[+-]?|BB[+-]?|B[+-]?|CCC[+-]?|CC|C|D)\.ru$/.test(
+        !/^(?:AAA|A{1,2}[+-]?|B{1,3}[+-]?|CCC[+-]?|C{1,2}|D)\.ru$/.test(
           raw,
         )
-      )
+      ) {
         throw new Error('NCR rating changed');
+      }
       const dateParts = /^(\d{2})\.(\d{2})\.(\d{4})$/.exec(
         cells.eq(DATE_COLUMN).text().trim(),
       );
       const href = cells.eq(ISIN_COLUMN).find('a').attr('href');
-      if (!dateParts || !href || !/^\/ratings\/issues\/\d+\/$/.test(href))
+      if (!dateParts || !href || !/^\/ratings\/issues\/\d+\/$/.test(href)) {
         throw new Error('NCR identity missing');
+      }
       const date = `${dateParts[3]}-${dateParts[2]}-${dateParts[1]}`;
       if (
         !Number.isFinite(Date.parse(date)) ||
-        new Date(date).toISOString().slice(0, 10) !== date
-      )
+        new Date(date).toISOString().slice(ISO_DATE_START, ISO_DATE_LENGTH) !== date
+      ) {
         throw new Error('NCR date invalid');
+      }
       const rating: NcrRating = {
         agency: 'NCR',
         value: withdrawn ? null : raw,
@@ -103,8 +117,9 @@ export class NcrRatingsClient {
         previous &&
         previous.date === date &&
         (previous.value !== rating.value || previous.status !== rating.status)
-      )
+      ) {
         throw new Error('NCR rating ambiguous');
+      }
       if (!previous || previous.date < date) result.set(isin, rating);
     });
     if (!result.size) throw new Error('NCR registry empty');

src/integrations/ncr/ncr.module.ts

@@ -1,4 +1,5 @@
 import { Module } from '@nestjs/common';
+
 import { NcrRatingsClient } from './ncr-ratings.client';
 
 @Module({

src/integrations/tbank/decimal.spec.ts

@@ -21,3 +21,18 @@ describe('decimal', () => {
     ).toBe('1');
   });
 });
+
+describe('decimal formatting', () => {
+  it.each([
+    [120000n, 4, '12'],
+    [-120030n, 4, '-12.003'],
+    [1n, 4, '0.0001'],
+    [0n, 4, '0'],
+  ])('preserves value %s at scale %s while trimming only trailing zeros', (value, scale, expected) => {
+    expect(formatDecimal({ value, scale })).toBe(expected);
+  });
+  it('preserves a long fraction with a trailing zero run', () => {
+    const significant = '1'.repeat(10_000);
+    expect(formatDecimal({ value: BigInt(significant + '0'.repeat(10_000)), scale: 20_000 })).toBe('0.' + significant);
+  });
+});

src/integrations/tbank/decimal.ts

@@ -1,12 +1,14 @@
 import { Decimal } from '../../common/decimal';
 
+const MISSING_PROTO_COMPONENT = 0;
+
 const NANO = 1_000_000_000n;
 
-export type ProtoDecimal = { units?: string | number; nano?: string | number };
+export type ProtoDecimal = { nano?: number | string; units?: number | string };
 
 export function decimal(value: ProtoDecimal): Decimal {
   return {
-    value: BigInt(value.units ?? 0) * NANO + BigInt(value.nano ?? 0),
+    value: BigInt(value.units ?? MISSING_PROTO_COMPONENT) * NANO + BigInt(value.nano ?? MISSING_PROTO_COMPONENT),
     scale: 9,
   };
 }

src/integrations/tbank/instrument-metadata.repository.ts

@@ -0,0 +1,331 @@
+import { Injectable } from '@nestjs/common';
+import { randomUUID } from 'node:crypto';
+import { isDeepStrictEqual } from 'node:util';
+
+import type {
+  TbankInstrumentLookup as MetadataLookupRow,
+  TbankInstrument as MetadataRow,
+  Prisma,
+} from '../../../generated/prisma/client';
+import type { TbankSyncAttempt } from './tbank-access.service';
+import type { TbankInstrument } from './tbank.client';
+
+import { PrismaService } from '../../prisma/prisma.service';
+import { TbankErrorCode } from './tbank-error-code';
+
+const FIRST_BATCH_OFFSET = 0;
+const UNCHANGED_REVISION_INCREMENT = 0;
+const REVISION_INCREMENT = 1;
+const MISSING_DATA_REVISION = 0;
+
+export type MetadataIdentity = {
+  figi?: null | string;
+  instrumentUid?: null | string;
+};
+export type MetadataLookup = {
+  data: null | TbankInstrument;
+  id: string;
+  type: 'figi' | 'uid';
+};
+const provider = 'tbank';
+// Keep IN lists below the SQLite/Prisma parameter limit, including fixed predicates.
+const metadataReadBatchSize = 400;
+export function metadataKey(identity: MetadataIdentity) {
+  return JSON.stringify([
+    identity.instrumentUid?.trim() || null,
+    identity.figi?.trim() || null,
+  ]);
+}
+
+@Injectable()
+export class InstrumentMetadataRepository {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async readMany(identities: MetadataIdentity[]) {
+    const identifiers = identities.flatMap((identity) => [
+      ...(identity.instrumentUid?.trim()
+        ? [{ identifierType: 'uid', identifier: identity.instrumentUid.trim() }]
+        : []),
+      ...(identity.figi?.trim()
+        ? [{ identifierType: 'figi', identifier: identity.figi.trim() }]
+        : []),
+    ]);
+    if (!identifiers.length) {
+      return new Map<string, ReturnType<typeof selectMetadata>>();
+    }
+    return this.prisma.$transaction(async (tx) => {
+      const lookups: MetadataLookupRow[] = [];
+      for (const identifierType of ['uid', 'figi']) {
+        const values = [
+          ...new Set(
+            identifiers
+              .filter((entry) => entry.identifierType === identifierType)
+              .map((entry) => entry.identifier),
+          ),
+        ];
+        for (
+          let offset = FIRST_BATCH_OFFSET;
+          offset < values.length;
+          offset += metadataReadBatchSize
+        ) {
+          lookups.push(
+            ...(await tx.tbankInstrumentLookup.findMany({
+              where: {
+                provider,
+                identifierType,
+                identifier: {
+                  in: values.slice(offset, offset + metadataReadBatchSize),
+                },
+              },
+            })),
+          );
+        }
+      }
+      const uids = [
+        ...new Set(lookups.flatMap((row) => row.matchedUids as string[])),
+      ];
+      const instruments: MetadataRow[] = [];
+      for (
+        let offset = FIRST_BATCH_OFFSET;
+        offset < uids.length;
+        offset += metadataReadBatchSize
+      ) {
+        instruments.push(
+          ...(await tx.tbankInstrument.findMany({
+            where: {
+              provider,
+              uid: { in: uids.slice(offset, offset + metadataReadBatchSize) },
+            },
+          })),
+        );
+      }
+      const byIdentifier = new Map(
+        lookups.map((row) => [`${row.identifierType}:${row.identifier}`, row]),
+      );
+      const byUid = new Map(instruments.map((row) => [row.uid, row]));
+      return new Map(
+        identities.map((identity) => [
+          metadataKey(identity),
+          selectMetadata(identity, byIdentifier, byUid),
+        ]),
+      );
+    });
+  }
+
+  async reserve(
+    attemptOwner: { revision: string; userId: string },
+    identity: MetadataIdentity,
+    runId: string,
+    active: ReadonlySet<string>,
+  ) {
+    return this.prisma.$transaction(async (tx) => {
+      const valid = await tx.tbankConnection.updateMany({
+        where: { ...attemptOwner, invalidToken: false },
+        data: { membershipRevision: { increment: 0 } },
+      });
+      if (!valid.count) return null;
+      const scope = {
+        ...attemptOwner,
+        scopeKey: `metadata:${metadataKey(identity)}`,
+      };
+      const previous = await tx.tbankSyncWork.findUnique({
+        where: { userId_revision_scopeKey: scope },
+      });
+      if (
+        previous?.state === 'running' &&
+        previous.processRunId === runId &&
+        active.has(previous.attemptId)
+      ) {
+        return { work: previous, launch: false };
+      }
+      const data = {
+        attemptId: randomUUID(),
+        processRunId: runId,
+        state: 'running',
+        priority: 1,
+        intent: { source: 'metadata', ...identity },
+        progress: {},
+        errorCode: null,
+      };
+      const work = await tx.tbankSyncWork.upsert({
+        where: { userId_revision_scopeKey: scope },
+        create: { ...scope, ...data, id: randomUUID() },
+        update: data,
+      });
+      return { work, launch: true };
+    });
+  }
+
+  work(userId: string, revision: string, identity: MetadataIdentity) {
+    return this.prisma.tbankSyncWork.findUnique({
+      where: {
+        userId_revision_scopeKey: {
+          userId,
+          revision,
+          scopeKey: `metadata:${metadataKey(identity)}`,
+        },
+      },
+      select: { id: true, state: true, errorCode: true },
+    });
+  }
+
+  publish(attempt: TbankSyncAttempt, results: MetadataLookup[], now: Date) {
+    return this.prisma.$transaction(async (tx) => {
+      const claimed = await tx.tbankSyncWork.updateMany({
+        where: {
+          ...attempt,
+          state: 'running',
+          connection: { invalidToken: false },
+        },
+        data: { state: 'complete', progress: {} },
+      });
+      if (!claimed.count) return false;
+      const aliases = new Map(
+        results.map((result) => [`${result.type}:${result.id}`, result]),
+      );
+      for (const result of results) {
+        if (!result.data) continue;
+        const uid =
+          result.data.uid?.trim() || (result.type === 'uid' ? result.id : null);
+        const figi =
+          result.data.figi?.trim() ||
+          (result.type === 'figi' ? result.id : null);
+        for (const [type, id] of [
+          ['uid', uid],
+          ['figi', figi],
+        ] as const) {
+          if (id && uid && !aliases.has(`${type}:${id}`)) {
+            aliases.set(`${type}:${id}`, {
+              type,
+              id,
+              data: { ...result.data, uid },
+            });
+          }
+        }
+      }
+      for (const result of aliases.values()) {
+        const instrument = result.data;
+        const uid =
+          instrument?.uid?.trim() || (result.type === 'uid' ? result.id : null);
+        // FIGI is an alias, never a fabricated provider UID.
+        if (instrument && !uid) {
+          throw new Error('Metadata response has no instrument UID');
+        }
+        if (instrument && uid) {
+          const key = { provider, uid };
+          const previous = await tx.tbankInstrument.findUnique({
+            where: { provider_uid: key },
+          });
+          const payload = JSON.parse(
+            JSON.stringify(instrument),
+          ) as Prisma.InputJsonObject;
+          const data = {
+            metadata: payload,
+            figi:
+              instrument.figi ?? (result.type === 'figi' ? result.id : null),
+            ticker: instrument.ticker ?? null,
+            instrumentType: instrument.instrumentType ?? '',
+            fetchedAt: now,
+          };
+          await tx.tbankInstrument.upsert({
+            where: { provider_uid: key },
+            create: { ...key, ...data },
+            update: {
+              ...data,
+              dataRevision: {
+                increment: isDeepStrictEqual(previous?.metadata, payload)
+                  ? UNCHANGED_REVISION_INCREMENT
+                  : REVISION_INCREMENT,
+              },
+            },
+          });
+        }
+        const key = {
+          provider,
+          identifierType: result.type,
+          identifier: result.id,
+        };
+        const matchedUids = instrument && uid ? [uid] : [];
+        const previous = await tx.tbankInstrumentLookup.findUnique({
+          where: { provider_identifierType_identifier: key },
+        });
+        await tx.tbankInstrumentLookup.upsert({
+          where: { provider_identifierType_identifier: key },
+          create: { ...key, matchedUids, fetchedAt: now },
+          update: {
+            matchedUids,
+            fetchedAt: now,
+            dataRevision: {
+              increment: isDeepStrictEqual(previous?.matchedUids, matchedUids)
+                ? UNCHANGED_REVISION_INCREMENT
+                : REVISION_INCREMENT,
+            },
+          },
+        });
+      }
+      return true;
+    });
+  }
+
+  async finishObserver(attempt: TbankSyncAttempt, success: boolean) {
+    await this.prisma.tbankSyncWork.updateMany({
+      where: {
+        ...attempt,
+        state: 'running',
+        ...(success ? { connection: { invalidToken: false } } : {}),
+      },
+      data: {
+        state: success ? 'complete' : 'failed',
+        errorCode: success ? null : TbankErrorCode.Unavailable,
+      },
+    });
+    if (success) {
+      await this.prisma.tbankSyncWork.updateMany({
+        where: {
+          ...attempt,
+          state: 'running',
+          connection: { invalidToken: true },
+        },
+        data: { state: 'failed', errorCode: TbankErrorCode.InvalidToken },
+      });
+    }
+  }
+}
+
+function selectMetadata(
+  identity: MetadataIdentity,
+  lookups: ReadonlyMap<string, MetadataLookupRow>,
+  instruments: ReadonlyMap<string, MetadataRow>,
+) {
+  const resolve = (type: string, id: null | string | undefined) => {
+    const lookup = lookups.get(`${type}:${id?.trim()}`);
+    const uid = (lookup?.matchedUids as string[] | undefined)?.[0];
+    const instrument = uid ? instruments.get(uid) : undefined;
+    const data = instrument ? (instrument.metadata as TbankInstrument) : null;
+    return { lookup, instrument, data };
+  };
+  const instrumentUid = identity.instrumentUid?.trim();
+  const instrumentFigi = identity.figi?.trim();
+  const uid = resolve('uid', instrumentUid);
+  const figi = resolve('figi', instrumentFigi);
+  const usefulUid = Boolean(uid.data?.name?.trim() || uid.data?.ticker?.trim());
+  const used =
+    usefulUid || !instrumentFigi ? [uid] : instrumentUid ? [uid, figi] : [figi];
+  const complete = used.every((row) => Boolean(row.lookup));
+  const fetchedAt =
+    used
+      .flatMap((row) => (row.lookup ? [row.lookup.fetchedAt] : []))
+      .sort((a, b) => a.valueOf() - b.valueOf())[0] ?? null;
+  return {
+    data: usefulUid ? uid.data : (figi.data ?? uid.data),
+    complete,
+    fresh: complete,
+    fetchedAt,
+    dataRevision: used
+      .map(
+        (row) =>
+          `${row.lookup?.dataRevision ?? MISSING_DATA_REVISION}:${row.instrument?.dataRevision ?? MISSING_DATA_REVISION}`,
+      )
+      .join('/'),
+  };
+}

src/integrations/tbank/instrument-metadata.service.spec.ts

@@ -1,294 +0,0 @@
-import { ServiceUnavailableException } from '@nestjs/common';
-import type { LRUCache } from 'lru-cache';
-import assert from 'node:assert/strict';
-import { InstrumentMetadataService } from './instrument-metadata.service';
-import type { TbankInstrument } from './tbank.client';
-
-describe('InstrumentMetadataService', () => {
-  const tbank = {
-    getInstrumentByFigi: jest.fn(),
-    getInstrumentByUid: jest.fn(),
-  };
-  const logger = { event: jest.fn() };
-  let service: InstrumentMetadataService;
-
-  function rememberExpired(key: string, value: TbankInstrument): void {
-    const cache = (
-      service as unknown as { metadata: LRUCache<string, TbankInstrument> }
-    ).metadata;
-    cache.set(key, value, { ttl: 1, start: performance.now() - 1000 });
-  }
-
-  beforeEach(() => {
-    jest.clearAllMocks();
-    tbank.getInstrumentByFigi.mockReset();
-    tbank.getInstrumentByUid.mockReset();
-    service = new InstrumentMetadataService(tbank as never, logger as never);
-  });
-
-  it('prefers the instrument UID when metadata is available', async () => {
-    tbank.getInstrumentByUid.mockResolvedValue({
-      name: 'Инструмент',
-      brand: { logoName: 'instrument.png' },
-    });
-
-    await expect(
-      service.resolve('token', 'uid-1', 'figi-1'),
-    ).resolves.toMatchObject({
-      brand: { logoName: 'instrument.png' },
-    });
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-
-  it('falls back to FIGI when the UID has no matching instrument', async () => {
-    tbank.getInstrumentByUid.mockResolvedValue(null);
-    tbank.getInstrumentByFigi.mockResolvedValue({
-      ticker: 'SBER',
-      brand: { logoName: 'sber.png' },
-    });
-
-    await expect(
-      service.resolve('token', 'uid-1', 'figi-1'),
-    ).resolves.toMatchObject({
-      ticker: 'SBER',
-    });
-    expect(tbank.getInstrumentByFigi).toHaveBeenCalledWith('token', 'figi-1');
-  });
-
-  it('returns a nullable fallback when instrument metadata is unavailable', async () => {
-    tbank.getInstrumentByUid.mockRejectedValue(new Error('unavailable'));
-
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toBeNull();
-  });
-
-  it('caches negative lookups and avoids repeated upstream requests', async () => {
-    tbank.getInstrumentByUid.mockResolvedValue(null);
-
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toBeNull();
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toBeNull();
-
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(1);
-  });
-
-  it('tries FIGI when UID metadata has no usable name or ticker', async () => {
-    tbank.getInstrumentByUid.mockResolvedValue({ name: ' ', ticker: '' });
-    tbank.getInstrumentByFigi.mockResolvedValue({ name: 'Облигация' });
-    await expect(
-      service.resolve('token', 'uid-1', 'figi-1'),
-    ).resolves.toMatchObject({ name: 'Облигация' });
-  });
-
-  it('retains expired successful metadata through temporary failures and refreshes it later', async () => {
-    const known = {
-      name: 'Облигация',
-      ticker: 'BOND',
-      brand: { logoName: 'bond.png' },
-    };
-    tbank.getInstrumentByUid.mockResolvedValueOnce(known);
-    await service.resolve('token', 'uid-1', null);
-    rememberExpired('uid:uid-1', known);
-    tbank.getInstrumentByUid.mockRejectedValue(
-      new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' }),
-    );
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toEqual(
-      known,
-    );
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toEqual(
-      known,
-    );
-    tbank.getInstrumentByUid.mockResolvedValue({
-      ...known,
-      name: 'Новое название',
-    });
-    await expect(
-      service.resolve('token', 'uid-1', null),
-    ).resolves.toMatchObject({ name: 'Новое название' });
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(4);
-  });
-
-  it('does not mask an invalid token as missing metadata or retry by FIGI', async () => {
-    const error = new Error('INVALID_TBANK_TOKEN');
-    tbank.getInstrumentByUid.mockRejectedValue(error);
-    await expect(service.resolve('token', 'uid-1', 'figi-1')).rejects.toBe(
-      error,
-    );
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-
-  it('keeps known metadata through an incomplete refresh without renewing its freshness', async () => {
-    const known = { name: 'Облигация', ticker: 'BOND' };
-    rememberExpired('uid:uid-1', known);
-    tbank.getInstrumentByUid
-      .mockResolvedValueOnce({ name: ' ', ticker: '', isin: 'RU0000000001' })
-      .mockRejectedValueOnce(
-        new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' }),
-      );
-
-    await expect(service.resolve('token', 'uid-1', 'figi-1')).resolves.toEqual(
-      known,
-    );
-    await expect(service.resolve('token', 'uid-1', 'figi-1')).resolves.toEqual(
-      known,
-    );
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(2);
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-
-  it('keeps a known FIGI name after partial UID metadata and does not cache the partial response', async () => {
-    const known = { name: 'Облигация', ticker: 'BOND' };
-    rememberExpired('figi:figi-1', known);
-    tbank.getInstrumentByUid
-      .mockResolvedValueOnce({ isin: 'RU0000000001' })
-      .mockResolvedValueOnce({ name: 'Новое название' });
-    tbank.getInstrumentByFigi.mockRejectedValue(
-      new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' }),
-    );
-
-    await expect(service.resolve('token', 'uid-1', 'figi-1')).resolves.toEqual(
-      known,
-    );
-    await expect(service.resolve('token', 'uid-1', 'figi-1')).resolves.toEqual({
-      name: 'Новое название',
-    });
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(2);
-    expect(tbank.getInstrumentByFigi).toHaveBeenCalledTimes(1);
-  });
-
-  it('returns cold partial fields without caching them', async () => {
-    const partial = { isin: 'RU0000000001' };
-    tbank.getInstrumentByUid.mockResolvedValue(partial);
-
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toEqual(
-      partial,
-    );
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toEqual(
-      partial,
-    );
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(2);
-  });
-
-  it('replaces an expired name with authoritative confirmed absence', async () => {
-    rememberExpired('uid:uid-1', { name: 'Старое название' });
-    tbank.getInstrumentByUid.mockResolvedValue(null);
-
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toBeNull();
-    await expect(service.resolve('token', 'uid-1', null)).resolves.toBeNull();
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(1);
-  });
-
-  it('isolates in-flight credentials while sharing successful public metadata', async () => {
-    const error = new Error('INVALID_TBANK_TOKEN');
-    const known = { name: 'Облигация' };
-    let rejectInvalid: ((reason: Error) => void) | undefined;
-    tbank.getInstrumentByUid.mockImplementation((token: string) =>
-      token === 'invalid-token'
-        ? new Promise((_resolve, reject) => {
-            rejectInvalid = reject;
-          })
-        : Promise.resolve(known),
-    );
-
-    const invalid = expect(
-      service.resolve('invalid-token', 'uid-1', null),
-    ).rejects.toBe(error);
-    const valid = service.resolve('valid-token', 'uid-1', null);
-    assert.ok(rejectInvalid);
-    rejectInvalid(error);
-
-    await invalid;
-    await expect(valid).resolves.toEqual(known);
-    await expect(
-      service.resolve('another-token', 'uid-1', null),
-    ).resolves.toEqual(known);
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(2);
-  });
-
-  it('returns cached or nullable metadata without starting requests after abort', async () => {
-    const known = { name: 'Облигация' };
-    rememberExpired('figi:figi-1', known);
-    const controller = new AbortController();
-    controller.abort();
-
-    await expect(
-      service.resolve('token', 'uid-1', 'figi-1', controller.signal),
-    ).resolves.toEqual(known);
-    await expect(
-      service.resolve('token', 'uid-2', 'figi-2', controller.signal),
-    ).resolves.toBeNull();
-    expect(tbank.getInstrumentByUid).not.toHaveBeenCalled();
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-
-  it('returns expired metadata promptly when the waiting caller aborts', async () => {
-    const known = { name: 'Облигация' };
-    rememberExpired('uid:uid-1', known);
-    tbank.getInstrumentByUid.mockReturnValue(new Promise(() => {}));
-    const controller = new AbortController();
-    const result = service.resolve(
-      'token',
-      'uid-1',
-      'figi-1',
-      controller.signal,
-    );
-
-    controller.abort();
-
-    await expect(result).resolves.toEqual(known);
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-
-  it('keeps a shared fetch alive after one caller aborts and caches its result', async () => {
-    const known = { name: 'Облигация' };
-    let finish: ((value: TbankInstrument) => void) | undefined;
-    tbank.getInstrumentByUid.mockReturnValue(
-      new Promise((resolve) => {
-        finish = resolve;
-      }),
-    );
-    const controller = new AbortController();
-    const aborted = service.resolve(
-      'token',
-      'uid-1',
-      'figi-1',
-      controller.signal,
-    );
-    controller.abort();
-    await expect(aborted).resolves.toBeNull();
-
-    const waiting = service.resolve('token', 'uid-1', null);
-    assert.ok(finish);
-    finish(known);
-
-    await expect(waiting).resolves.toEqual(known);
-    await expect(
-      service.resolve('another-token', 'uid-1', null),
-    ).resolves.toEqual(known);
-    expect(tbank.getInstrumentByUid).toHaveBeenCalledTimes(1);
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-
-  it('does not start FIGI lookup after an aborted UID lookup fails later', async () => {
-    let fail: ((reason: Error) => void) | undefined;
-    tbank.getInstrumentByUid.mockReturnValue(
-      new Promise((_resolve, reject) => {
-        fail = reject;
-      }),
-    );
-    const controller = new AbortController();
-    const result = service.resolve(
-      'token',
-      'uid-1',
-      'figi-1',
-      controller.signal,
-    );
-    controller.abort();
-    await expect(result).resolves.toBeNull();
-
-    assert.ok(fail);
-    fail(new Error('INVALID_TBANK_TOKEN'));
-    await Promise.resolve();
-    await Promise.resolve();
-
-    expect(tbank.getInstrumentByFigi).not.toHaveBeenCalled();
-  });
-});

src/integrations/tbank/instrument-metadata.service.ts

@@ -1,118 +1,222 @@
-import { Injectable, ServiceUnavailableException } from '@nestjs/common';
-import { LRUCache } from 'lru-cache';
-import { createHash } from 'node:crypto';
+import { Injectable } from '@nestjs/common';
+import { randomUUID } from 'node:crypto';
+
 import { StructuredLogger } from '../../common/logging/structured-logger.service';
+import {
+  InstrumentMetadataRepository,
+  type MetadataIdentity,
+  metadataKey,
+  type MetadataLookup,
+} from './instrument-metadata.repository';
+import {
+  TbankAccessService,
+  type TbankSyncAttempt,
+} from './tbank-access.service';
+import { isTbankErrorCode, TbankErrorCode } from './tbank-error-code';
 import { TbankClient, type TbankInstrument } from './tbank.client';
+export { metadataKey } from './instrument-metadata.repository';
+export type { MetadataIdentity } from './instrument-metadata.repository';
 
-const metadataForMs = 86_400_000;
-const maxCachedInstruments = 500;
-const missingInstrument = Symbol('missingInstrument');
-
+type Producer = {
+  attempt: TbankSyncAttempt;
+  identity: MetadataIdentity;
+  observers: TbankSyncAttempt[];
+};
 @Injectable()
 export class InstrumentMetadataService {
-  private readonly metadata = new LRUCache<
-    string,
-    TbankInstrument | typeof missingInstrument
-  >({
-    max: maxCachedInstruments,
-    ttl: metadataForMs,
-    noDeleteOnStaleGet: true,
-  });
-  private readonly pending = new Map<string, Promise<TbankInstrument | null>>();
+  private readonly runId = randomUUID();
+  private readonly active = new Set<string>();
+  private readonly producers = new Map<string, Producer>();
+  private readonly queue: Producer[] = [];
+  private reservations: Promise<unknown> = Promise.resolve();
+  private running = false;
 
   constructor(
     private readonly tbank: TbankClient,
     private readonly logger: StructuredLogger,
+    private readonly repository: InstrumentMetadataRepository,
+    private readonly access: TbankAccessService,
   ) {}
 
-  async resolve(
-    token: string,
-    instrumentUid: string | null | undefined,
-    figi: string | null | undefined,
-    signal?: AbortSignal,
-  ): Promise<TbankInstrument | null> {
-    const uid = instrumentUid?.trim();
-    let byUid: TbankInstrument | null = null;
-    if (uid) {
-      byUid = await this.lookup(
-        token,
-        `uid:${uid}`,
-        () => this.tbank.getInstrumentByUid(token, uid),
-        signal,
+  savedMany(identities: MetadataIdentity[]) {
+    return this.repository.readMany(identities);
+  }
+
+  async read(
+    userId: string,
+    identity: MetadataIdentity,
+    observe = false,
+    revision?: string,
+  ) {
+    const connection = await this.access.local(userId);
+    if (revision && connection.revision !== revision) return null;
+    const data = (await this.savedMany([identity])).get(metadataKey(identity));
+    if (!observe && !data?.fresh) {
+      await this.request(userId, connection.revision, identity);
+    }
+    return {
+      ...data,
+      work: await this.repository.work(userId, connection.revision, identity),
+    };
+  }
+
+  async request(
+    userId: string,
+    revision: string,
+    identity: MetadataIdentity,
+    force = false,
+  ) {
+    identity = {
+      instrumentUid: identity.instrumentUid?.trim() || null,
+      figi: identity.figi?.trim() || null,
+    };
+    if (!identity.instrumentUid && !identity.figi) return null;
+    const normalized = identity;
+    const reserved = this.reservations.then(async () => {
+      const snapshot = (await this.savedMany([normalized])).get(
+        metadataKey(normalized),
       );
-      if (byUid?.name?.trim() || byUid?.ticker?.trim()) return byUid;
-    }
-    const instrumentFigi = figi?.trim();
-    const byFigi = instrumentFigi
-      ? await this.lookup(
-          token,
-          `figi:${instrumentFigi}`,
-          () => this.tbank.getInstrumentByFigi(token, instrumentFigi),
-          signal,
-        )
-      : null;
-    return byFigi ?? byUid;
-  }
-
-  private async lookup(
-    token: string,
-    key: string,
-    fetch: () => Promise<TbankInstrument | null>,
-    signal?: AbortSignal,
-  ): Promise<TbankInstrument | null> {
-    const cached = this.metadata.get(key);
-    if (cached !== undefined)
-      return cached === missingInstrument ? null : cached;
-    if (signal?.aborted) return this.lastKnown(key);
-    const owner = createHash('sha256').update(token).digest('hex');
-    const requestKey = `${owner}:${key}`;
-    let pending = this.pending.get(requestKey);
-    if (!pending) {
-      pending = this.fetch(key, fetch, this.lastKnown(key)).finally(() => {
-        this.pending.delete(requestKey);
-      });
-      this.pending.set(requestKey, pending);
-    }
-    if (!signal) return pending;
-    return new Promise((resolve, reject) => {
-      const onAbort = () => resolve(this.lastKnown(key));
-      signal.addEventListener('abort', onAbort, { once: true });
-      void pending.then(resolve, reject).finally(() => {
-        signal.removeEventListener('abort', onAbort);
-      });
+      if (!force && snapshot?.fresh) return null;
+      const result = await this.repository.reserve(
+        { userId, revision },
+        normalized,
+        this.runId,
+        this.active,
+      );
+      if (!result) return null;
+      const { id, attemptId } = result.work;
+      if (!result.launch) return id;
+      const attempt = { userId, revision, id, attemptId };
+      this.active.add(attemptId);
+      const key = metadataKey(normalized);
+      const producer = this.producers.get(key);
+      if (producer) producer.observers.push(attempt);
+      else {
+        const queued = { identity: normalized, attempt, observers: [] };
+        this.producers.set(key, queued);
+        this.queue.push(queued);
+      }
+      if (!this.running) {
+        this.running = true;
+        setImmediate(() => {
+          void this.drain();
+        });
+      }
+      return id;
     });
+    this.reservations = reserved.catch(() => undefined);
+    return reserved;
   }
 
-  private lastKnown(key: string): TbankInstrument | null {
-    const value = this.metadata.peek(key, { allowStale: true });
-    return value === missingInstrument ? null : (value ?? null);
-  }
-
-  private async fetch(
-    key: string,
-    request: () => Promise<TbankInstrument | null>,
-    previous: TbankInstrument | null,
-  ): Promise<TbankInstrument | null> {
+  private async drain() {
     try {
-      const value = await request();
-      const found = Boolean(value?.name?.trim() || value?.ticker?.trim());
-      if (value === null || found)
-        this.metadata.set(key, value ?? missingInstrument);
-      this.logger.event('debug', 'instrument-metadata.resolved', {
-        found,
+      while (this.queue.length) {
+        const producer = this.queue.shift();
+        if (!producer) break;
+        const { attempt, identity } = producer;
+        let success = false;
+        try {
+          const token = await this.access.tokenForAttempt(attempt);
+          if (token) {
+            const results: MetadataLookup[] = [];
+            let useful = false;
+            let uidFailed = false;
+            if (identity.instrumentUid) {
+              let data: null | TbankInstrument | undefined;
+              try {
+                data = await this.tbank.getInstrumentByUid(
+                  token,
+                  identity.instrumentUid,
+                );
+              } catch (error) {
+                if (
+                  !identity.figi ||
+                  (error instanceof Error &&
+                    isTbankErrorCode(error.message, TbankErrorCode.InvalidToken))
+                ) {
+                  throw error;
+                }
+                uidFailed = true;
+              }
+              if (data?.uid && data.uid !== identity.instrumentUid) {
+                throw new Error('Metadata UID mismatch');
+              }
+              if (data !== undefined) {
+                results.push({ type: 'uid', id: identity.instrumentUid, data });
+              }
+              useful = Boolean(data?.name?.trim() || data?.ticker?.trim());
+              if (!useful && data && !identity.figi) {
+                throw new Error('Incomplete metadata');
+              }
+            }
+            if (!useful && identity.figi) {
+              const data = await this.tbank.getInstrumentByFigi(
+                token,
+                identity.figi,
+              );
+              if (data?.figi && data.figi !== identity.figi) {
+                throw new Error('Metadata FIGI mismatch');
+              }
+              if (data && !data.name?.trim() && !data.ticker?.trim()) {
+                throw new Error('Incomplete metadata');
+              }
+              // eslint-disable-next-line sonarjs/different-types-comparison -- Defensive validation at an untrusted upstream boundary includes missing payloads.
+              if (data === undefined || (uidFailed && !data)) {
+                throw new Error('Metadata source unavailable');
+              }
+              results.push({ type: 'figi', id: identity.figi, data });
+              // A successful FIGI response identifies its canonical UID too;
+              // a failed UID RPC is never persisted as a negative lookup.
+              if (
+                uidFailed &&
+                data?.uid === identity.instrumentUid &&
+                identity.instrumentUid
+              ) {
+                results.push({ type: 'uid', id: identity.instrumentUid, data });
+              }
+            }
+            if (
+              !results.length ||
+              (results.some((result) => result.data) &&
+                !results.some(
+                  (result) =>
+                    result.data?.name?.trim() || result.data?.ticker?.trim(),
+                ))
+            ) {
+              throw new Error('Incomplete metadata');
+            }
+            success = await this.repository.publish(
+              attempt,
+              results,
+              new Date(),
+            );
+          }
+        } catch (error) {
+          if (error instanceof Error && isTbankErrorCode(error.message, TbankErrorCode.InvalidToken)) {
+            await this.access.rejectMembershipToken(attempt);
+          } else {
+            this.logger.event('warn', 'instrument-metadata.failed', {
+              code: TbankErrorCode.Unavailable,
+            });
+          }
+        }
+        // Remove the producer before awaiting finalization: a new request cannot
+        // attach to a producer whose observer list has already been drained.
+        this.producers.delete(metadataKey(identity));
+        for (const observer of [attempt, ...producer.observers]) {
+          await this.repository.finishObserver(observer, success);
+          this.active.delete(observer.attemptId);
+        }
+      }
+    } catch {
+      this.logger.event('error', 'instrument-metadata.persistence-failed', {
+        code: TbankErrorCode.Unavailable,
       });
-      return found || value === null ? value : (previous ?? value);
-    } catch (error) {
-      this.logger.event('warn', 'instrument-metadata.failed', {
-        code:
-          error instanceof Error && 'response' in error
-            ? ((error as { response?: { code?: string } }).response?.code ??
-              'UNKNOWN')
-            : 'UNKNOWN',
-      });
-      if (error instanceof Error && error.message === 'INVALID_TBANK_TOKEN')
-        throw error;
-      return error instanceof ServiceUnavailableException ? previous : null;
+      this.active.clear();
+      this.producers.clear();
+      this.queue.length = 0;
+    } finally {
+      this.running = false;
     }
   }
 }

src/integrations/tbank/tbank-access.service.spec.ts

@@ -1,162 +0,0 @@
-import {
-  BadRequestException,
-  ConflictException,
-  NotFoundException,
-  ServiceUnavailableException,
-} from '@nestjs/common';
-
-jest.mock('../../prisma/prisma.service', () => ({
-  PrismaService: class PrismaService {},
-}));
-
-import type { TbankAccountContext } from './tbank-access.service';
-import { TbankAccessService } from './tbank-access.service';
-import { TbankTokenService } from './tbank-token.service';
-
-describe('TbankAccessService', () => {
-  const prisma = { tbankConnection: { findUnique: jest.fn() } };
-  const token = {
-    decrypt: jest.fn(),
-    translateInvalidToken: jest.fn((operation: () => Promise<unknown>) =>
-      new TbankTokenService({
-        getOrThrow: () => 'MDEyMzQ1Njc4OWFiY2RlZjAxMjM0NTY3ODlhYmNkZWY=',
-      } as never).translateInvalidToken(operation),
-    ),
-  };
-  const tbank = { getOpenAccounts: jest.fn() };
-  const service = new TbankAccessService(
-    prisma as never,
-    token as never,
-    tbank as never,
-  );
-
-  beforeEach(() => {
-    jest.clearAllMocks();
-    prisma.tbankConnection.findUnique.mockResolvedValue({
-      encryptedToken: 'encrypted',
-    });
-    token.decrypt.mockReturnValue('plain-token');
-    tbank.getOpenAccounts.mockResolvedValue([
-      {
-        id: 'account',
-        type: 'ACCOUNT_TYPE_TINKOFF',
-        name: ' Основной ',
-        openedDate: { seconds: '1723507200' },
-      },
-      { id: 'debit', type: 'ACCOUNT_TYPE_DEBIT', name: 'Debit' },
-    ]);
-  });
-
-  it('lists supported accounts through the saved decrypted token', async () => {
-    await expect(service.listSupportedAccounts('user')).resolves.toEqual([
-      {
-        id: 'account',
-        type: 'BROKERAGE',
-        name: 'Основной',
-        openedOn: '2024-08-13',
-      },
-    ]);
-
-    expect(prisma.tbankConnection.findUnique).toHaveBeenCalledWith({
-      where: { userId: 'user' },
-    });
-    expect(token.decrypt).toHaveBeenCalledWith('encrypted');
-    expect(tbank.getOpenAccounts).toHaveBeenCalledWith('plain-token');
-  });
-
-  it('rejects missing connections before calling T-Bank', async () => {
-    prisma.tbankConnection.findUnique.mockResolvedValue(null);
-
-    await expect(service.listSupportedAccounts('user')).rejects.toEqual(
-      expect.any(ConflictException),
-    );
-    expect(tbank.getOpenAccounts).not.toHaveBeenCalled();
-  });
-
-  it('resolves the persisted connection generation without an upstream account call', async () => {
-    const context = await service.withConnection('user', (value) => value);
-
-    expect(context).toEqual({
-      token: 'plain-token',
-      generation: expect.any(String) as string,
-    });
-    expect(tbank.getOpenAccounts).not.toHaveBeenCalled();
-  });
-
-  it('translates invalid tokens and preserves unavailable upstream errors', async () => {
-    tbank.getOpenAccounts.mockRejectedValueOnce(
-      new Error('INVALID_TBANK_TOKEN'),
-    );
-    await expect(service.listSupportedAccounts('user')).rejects.toEqual(
-      expect.any(BadRequestException),
-    );
-
-    const unavailable = new ServiceUnavailableException({
-      code: 'TBANK_UNAVAILABLE',
-    });
-    tbank.getOpenAccounts.mockRejectedValueOnce(unavailable);
-    await expect(service.listSupportedAccounts('user')).rejects.toBe(
-      unavailable,
-    );
-  });
-
-  it('wraps account-scoped handlers with resolved account access', async () => {
-    const handler = jest.fn((context: TbankAccountContext) =>
-      Promise.resolve({
-        resolvedToken: context.token,
-        generation: context.generation,
-        accountId: context.account.id,
-      }),
-    );
-
-    await expect(
-      service.withAccount('user', 'account', handler),
-    ).resolves.toEqual({
-      resolvedToken: 'plain-token',
-      generation: expect.any(String) as string,
-      accountId: 'account',
-    });
-  });
-
-  it('derives a stable opaque generation from each persisted encrypted payload', async () => {
-    const generation = () =>
-      service.withAccount('user', 'account', ({ generation: value }) =>
-        Promise.resolve(value),
-      );
-    prisma.tbankConnection.findUnique
-      .mockResolvedValueOnce({ encryptedToken: 'encrypted:first-nonce' })
-      .mockResolvedValueOnce({ encryptedToken: 'encrypted:first-nonce' })
-      .mockResolvedValueOnce({ encryptedToken: 'encrypted:second-nonce' });
-
-    const first = await generation();
-    const sameRecord = await generation();
-    const replaced = await generation();
-
-    expect(sameRecord).toBe(first);
-    expect(replaced).not.toBe(first);
-    expect(first).not.toContain('plain-token');
-    expect(first).not.toContain('encrypted:first-nonce');
-  });
-
-  it('rejects inaccessible accounts before running the handler', async () => {
-    const handler = jest.fn();
-
-    await expect(
-      service.withAccount('user', 'missing', handler),
-    ).rejects.toEqual(expect.any(NotFoundException));
-    expect(handler).not.toHaveBeenCalled();
-  });
-
-  it('translates invalid-token handler failures and preserves unrelated handler failures', async () => {
-    await expect(
-      service.withAccount('user', 'account', () =>
-        Promise.reject(new Error('INVALID_TBANK_TOKEN')),
-      ),
-    ).rejects.toEqual(expect.any(BadRequestException));
-
-    const failure = new Error('source failed');
-    await expect(
-      service.withAccount('user', 'account', () => Promise.reject(failure)),
-    ).rejects.toBe(failure);
-  });
-});

src/integrations/tbank/tbank-access.service.ts

@@ -1,25 +1,28 @@
 import {
+  BadRequestException,
   ConflictException,
   Injectable,
   NotFoundException,
 } from '@nestjs/common';
-import { createHash } from 'node:crypto';
+import { randomUUID } from 'node:crypto';
+
+import type { TbankAccount } from './tbank.client';
+
 import { PrismaService } from '../../prisma/prisma.service';
-import {
-  SupportedTbankAccount,
-  accessibleTbankAccount,
-  supportedTbankAccounts,
-} from './tbank-account.policy';
+import { supportedTbankAccounts } from './tbank-account.policy';
+import { TbankErrorCode } from './tbank-error-code';
+import { tbankSourceNeedsRefresh } from './tbank-source.policy';
 import { TbankTokenService } from './tbank-token.service';
-import { TbankAccount, TbankClient } from './tbank.client';
 
-export type TbankConnectionContext = {
-  token: string;
-  generation: string;
-};
+const EXPECTED_UPDATED_CONNECTIONS = 1;
+const MEMBERSHIP_REVISION_INCREMENT = 1;
+const UNCHANGED_MEMBERSHIP_REVISION_INCREMENT = 0;
 
-export type TbankAccountContext = TbankConnectionContext & {
-  account: TbankAccount;
+export type TbankSyncAttempt = {
+  attemptId: string;
+  id: string;
+  revision: string;
+  userId: string;
 };
 
 @Injectable()
@@ -27,81 +30,254 @@ export class TbankAccessService {
   constructor(
     private readonly prisma: PrismaService,
     private readonly tokens: TbankTokenService,
-    private readonly tbank: TbankClient,
   ) {}
 
-  async listSupportedAccounts(
+  async reserveMembership(
     userId: string,
-  ): Promise<SupportedTbankAccount[]> {
-    return this.withSupportedAccounts(userId, ({ accounts }) => accounts);
-  }
-
-  async withSupportedAccounts<T>(
-    userId: string,
-    handler: (context: {
-      token: string;
-      generation: string;
-      accounts: SupportedTbankAccount[];
-    }) => Promise<T> | T,
-  ): Promise<T> {
-    return this.withConnection(userId, async ({ token, generation }) =>
-      handler({
-        token,
-        generation,
-        accounts: supportedTbankAccounts(
-          await this.tbank.getOpenAccounts(token),
-        ),
-      }),
-    );
-  }
-
-  async withConnection<T>(
-    userId: string,
-    handler: (context: TbankConnectionContext) => Promise<T> | T,
-  ): Promise<T> {
-    const connection = await this.connection(userId);
-    return this.tokens.translateInvalidToken(async () => handler(connection));
-  }
-
-  async withAccount<T>(
-    userId: string,
-    accountId: string,
-    handler: (context: TbankAccountContext) => Promise<T>,
-  ): Promise<T> {
-    return this.withConnection(userId, (connection) =>
-      this.withAccountForConnection(connection, accountId, handler),
-    );
-  }
-
-  async withAccountForConnection<T>(
-    connection: TbankConnectionContext,
-    accountId: string,
-    handler: (context: TbankAccountContext) => Promise<T>,
-  ): Promise<T> {
-    const { token, generation } = connection;
-    return this.tokens.translateInvalidToken(async () => {
-      const account = accessibleTbankAccount(
-        await this.tbank.getOpenAccounts(token),
-        accountId,
-      );
-      if (!account) throw new NotFoundException();
-      return handler({ token, generation, account });
+    revision: string,
+    processRunId: string,
+    active: ReadonlySet<string>,
+    force: boolean,
+  ) {
+    return this.prisma.$transaction(async (tx) => {
+      const current = await tx.tbankConnection.updateMany({
+        where: { userId, revision, invalidToken: false },
+        data: { membershipRevision: { increment: 0 } },
+      });
+      if (!current.count) return null;
+      const connection = await tx.tbankConnection.findUniqueOrThrow({
+        where: { userId },
+      });
+      if (
+        !force &&
+        !tbankSourceNeedsRefresh(
+          'membership',
+          connection.membershipAt,
+          new Date(),
+        )
+      ) {
+        return null;
+      }
+      const scope = { userId, revision, scopeKey: 'membership' };
+      const previous = await tx.tbankSyncWork.findUnique({
+        where: { userId_revision_scopeKey: scope },
+      });
+      if (
+        previous?.state === 'running' &&
+        previous.processRunId === processRunId &&
+        active.has(previous.attemptId)
+      ) {
+        return { work: previous, launch: false };
+      }
+      const data = {
+        attemptId: randomUUID(),
+        processRunId,
+        state: 'running',
+        intent: { source: 'membership' },
+        progress: {},
+        priority: 0,
+        errorCode: null,
+      };
+      const work = await tx.tbankSyncWork.upsert({
+        where: { userId_revision_scopeKey: scope },
+        create: { ...scope, ...data, id: randomUUID() },
+        update: data,
+      });
+      return { work, launch: true };
     });
   }
 
-  private async connection(
+  membershipWork(userId: string, revision: string) {
+    return this.prisma.tbankSyncWork.findUnique({
+      where: {
+        userId_revision_scopeKey: { userId, revision, scopeKey: 'membership' },
+      },
+      select: { id: true, state: true, errorCode: true, updatedAt: true },
+    });
+  }
+
+  async failMembership(attempt: TbankSyncAttempt, invalidToken: boolean) {
+    if (invalidToken) return this.rejectMembershipToken(attempt);
+    const result = await this.prisma.tbankSyncWork.updateMany({
+      where: {
+        ...attempt,
+        state: 'running',
+        connection: { invalidToken: false },
+      },
+      data: { state: 'failed', errorCode: TbankErrorCode.Unavailable },
+    });
+    return result.count === EXPECTED_UPDATED_CONNECTIONS;
+  }
+
+  async tokenForAttempt(attempt: TbankSyncAttempt): Promise<null | string> {
+    const work = await this.prisma.tbankSyncWork.findFirst({
+      where: {
+        ...attempt,
+        state: 'running',
+        connection: { invalidToken: false },
+      },
+      select: { connection: { select: { encryptedToken: true } } },
+    });
+    return work ? this.tokens.decrypt(work.connection.encryptedToken) : null;
+  }
+
+  // Online reads: a permanent upstream auth refusal becomes 400/INVALID_TBANK_TOKEN here, once, for every caller.
+  async online<T>(
     userId: string,
-  ): Promise<{ token: string; generation: string }> {
+    run: (connection: { revision: string; token: string }) => Promise<T>,
+  ): Promise<T> {
     const connection = await this.prisma.tbankConnection.findUnique({
       where: { userId },
+      select: { encryptedToken: true, invalidToken: true, revision: true },
     });
-    if (!connection)
-      throw new ConflictException({ code: 'TBANK_NOT_CONNECTED' });
-    return {
-      token: this.tokens.decrypt(connection.encryptedToken),
-      generation: createHash('sha256')
-        .update(connection.encryptedToken)
-        .digest('base64url'),
-    };
+    if (!connection) throw new ConflictException({ code: TbankErrorCode.NotConnected });
+    if (connection.invalidToken) {
+      throw new BadRequestException({ code: TbankErrorCode.InvalidToken });
+    }
+    const token = this.tokens.decrypt(connection.encryptedToken);
+    return this.tokens.translateInvalidToken(() => run({ revision: connection.revision, token }));
+  }
+
+  async publishMembership(
+    attempt: TbankSyncAttempt,
+    accounts: TbankAccount[],
+    fetchedAt: Date,
+    completeWork = false,
+  ): Promise<boolean> {
+    const supported = supportedTbankAccounts(accounts);
+    if (new Set(supported.map(({ id }) => id)).size !== supported.length) {
+      throw new Error('Duplicate T-Bank account identity');
+    }
+    return this.prisma.$transaction(async (tx) => {
+      // Acquire the write fence before reading membership. Replacement and
+      // attempt supersession cannot interleave with the publication below.
+      const claimed = await tx.tbankSyncWork.updateMany({
+        where: {
+          ...attempt,
+          state: 'running',
+          connection: { invalidToken: false },
+        },
+        data: { updatedAt: new Date() },
+      });
+      if (!claimed.count) return false;
+      const { userId, revision } = attempt;
+      const previous = await tx.tbankAccount.findMany({
+        where: { userId, revision },
+        orderBy: { upstreamOrder: 'asc' },
+        select: { accountId: true, type: true, name: true, openedOn: true },
+      });
+      const next = supported.map(({ id, ...account }) => ({
+        accountId: id,
+        ...account,
+      }));
+      const changed =
+        previous.length !== next.length ||
+        previous.some((account, index) => {
+          // eslint-disable-next-line security/detect-object-injection -- The index comes from the paired account array iteration.
+          const incoming = next[index];
+          return (
+            account.accountId !== incoming.accountId ||
+            account.type !== incoming.type ||
+            account.name !== incoming.name ||
+            account.openedOn !== incoming.openedOn
+          );
+        });
+      await tx.tbankAccount.deleteMany({
+        where: {
+          userId,
+          revision,
+          accountId: { notIn: supported.map(({ id }) => id) },
+        },
+      });
+      for (const [upstreamOrder, account] of next.entries()) {
+        await tx.tbankAccount.upsert({
+          where: {
+            userId_revision_accountId: {
+              userId,
+              revision,
+              accountId: account.accountId,
+            },
+          },
+          create: { userId, revision, ...account, upstreamOrder },
+          update: { ...account, upstreamOrder },
+        });
+      }
+      await tx.tbankConnection.update({
+        where: { userId_revision: { userId, revision } },
+        data: {
+          membershipAt: fetchedAt,
+          membershipRevision: { increment: changed ? MEMBERSHIP_REVISION_INCREMENT : UNCHANGED_MEMBERSHIP_REVISION_INCREMENT },
+        },
+      });
+      // Value history visibility follows the confirmed membership only; a
+      // failed fetch never reaches this transaction and changes nothing.
+      const supportedIds = supported.map(({ id }) => id);
+      await tx.tbankPortfolioValueHistory.updateMany({
+        where: { userId, accountId: { in: supportedIds } },
+        data: { deletedAt: null },
+      });
+      await tx.tbankPortfolioValueHistory.updateMany({
+        where: { userId, accountId: { notIn: supportedIds }, deletedAt: null },
+        data: { deletedAt: fetchedAt },
+      });
+      if (completeWork) {
+        await tx.tbankSyncWork.update({
+          where: { id: attempt.id },
+          data: { state: 'complete', progress: { accounts: supported.length } },
+        });
+      }
+      return true;
+    });
+  }
+
+  async rejectMembershipToken(attempt: TbankSyncAttempt): Promise<boolean> {
+    return this.prisma.$transaction(async (tx) => {
+      const claimed = await tx.tbankSyncWork.updateMany({
+        where: { ...attempt, state: 'running' },
+        data: { state: 'failed', errorCode: TbankErrorCode.InvalidToken },
+      });
+      if (!claimed.count) return false;
+      await tx.tbankConnection.update({
+        where: {
+          userId_revision: {
+            userId: attempt.userId,
+            revision: attempt.revision,
+          },
+        },
+        data: { invalidToken: true },
+      });
+      return true;
+    });
+  }
+
+  // This boundary neither decrypts credentials nor starts discovery/sync.
+  // Missing membership is distinct from a successfully observed empty list.
+  async local(userId: string, accountId?: string) {
+    const connection = await this.prisma.tbankConnection.findUnique({
+      where: { userId },
+      select: {
+        userId: true,
+        revision: true,
+        invalidToken: true,
+        membershipAt: true,
+        membershipRevision: true,
+        accounts: { orderBy: { upstreamOrder: 'asc' } },
+      },
+    });
+    if (!connection) {
+      throw new ConflictException({ code: TbankErrorCode.NotConnected });
+    }
+    if (connection.invalidToken) {
+      throw new BadRequestException({ code: TbankErrorCode.InvalidToken });
+    }
+    if (
+      connection.membershipAt &&
+      accountId &&
+      accountId !== 'all' &&
+      !connection.accounts.some((account) => account.accountId === accountId)
+    ) {
+      throw new NotFoundException();
+    }
+    return connection;
   }
 }

src/integrations/tbank/tbank-account.policy.spec.ts

@@ -1,7 +1,4 @@
-import {
-  accessibleTbankAccount,
-  supportedTbankAccounts,
-} from './tbank-account.policy';
+import { supportedTbankAccounts } from './tbank-account.policy';
 
 describe('tbank-account-policy', () => {
   it('normalizes supported account types and fallback names', () => {
@@ -45,26 +42,4 @@ describe('tbank-account-policy', () => {
       },
     ]);
   });
-
-  it('matches account-scoped access only for supported account types', () => {
-    expect(
-      accessibleTbankAccount(
-        [
-          { id: 'account', type: 'ACCOUNT_TYPE_DEBIT', name: 'Debit' },
-          { id: 'other', type: 'ACCOUNT_TYPE_TINKOFF', name: 'Other' },
-        ],
-        'account',
-      ),
-    ).toBeNull();
-    expect(
-      accessibleTbankAccount(
-        [{ id: 'account', type: 'ACCOUNT_TYPE_TINKOFF', name: 'Brokerage' }],
-        'account',
-      ),
-    ).toEqual({
-      id: 'account',
-      type: 'ACCOUNT_TYPE_TINKOFF',
-      name: 'Brokerage',
-    });
-  });
 });

src/integrations/tbank/tbank-account.policy.ts

@@ -1,14 +1,15 @@
-import { MILLISECONDS_PER_SECOND } from '../../common/time';
+import { ISO_DATE_LENGTH, ISO_DATE_START, MILLISECONDS_PER_SECOND } from '../../common/time';
+import { TbankAccountType } from './tbank-protocol';
 import { TbankAccount } from './tbank.client';
 
 const accountTypes = {
-  ACCOUNT_TYPE_TINKOFF: { type: 'BROKERAGE', name: 'Брокерский счет' },
-  ACCOUNT_TYPE_TINKOFF_IIS: {
+  [TbankAccountType.Tinkoff]: { type: 'BROKERAGE', name: 'Брокерский счет' },
+  [TbankAccountType.TinkoffIis]: {
     type: 'INDIVIDUAL_INVESTMENT',
     name: 'ИИС',
   },
-  ACCOUNT_TYPE_INVEST_BOX: { type: 'INVEST_BOX', name: 'Инвесткопилка' },
-  ACCOUNT_TYPE_INVEST_FUND: {
+  [TbankAccountType.InvestBox]: { type: 'INVEST_BOX', name: 'Инвесткопилка' },
+  [TbankAccountType.InvestFund]: {
     type: 'MONEY_MARKET_FUND',
     name: 'Фонд денежного рынка',
   },
@@ -18,8 +19,8 @@ type AccountType = keyof typeof accountTypes;
 export type SupportedTbankAccount = {
   id: string;
   name: string;
+  openedOn: null | string;
   type: (typeof accountTypes)[AccountType]['type'];
-  openedOn: string | null;
 };
 
 export function supportedTbankAccounts(
@@ -39,20 +40,9 @@ export function supportedTbankAccounts(
   });
 }
 
-export function accessibleTbankAccount(
-  accounts: TbankAccount[],
-  accountId: string,
-): TbankAccount | null {
-  return (
-    accounts.find(
-      (account) => account.id === accountId && account.type in accountTypes,
-    ) ?? null
-  );
-}
-
-function openedOn(seconds: string | number | undefined): string | null {
+function openedOn(seconds: number | string | undefined): null | string {
   if (seconds === undefined) return null;
   const date = new Date(Number(seconds) * MILLISECONDS_PER_SECOND);
   if (Number.isNaN(date.valueOf())) return null;
-  return date.toISOString().slice(0, 10);
+  return date.toISOString().slice(ISO_DATE_START, ISO_DATE_LENGTH);
 }

src/integrations/tbank/tbank-error-code.ts

@@ -0,0 +1,10 @@
+export enum TbankErrorCode {
+  InvalidToken = 'INVALID_TBANK_TOKEN',
+  NotConnected = 'TBANK_NOT_CONNECTED',
+  Unavailable = 'TBANK_UNAVAILABLE',
+}
+
+// Error messages and persisted codes cross an open string boundary.
+export function isTbankErrorCode(value: unknown, expected: TbankErrorCode): boolean {
+  return value === expected;
+}

src/integrations/tbank/tbank-market.types.ts

@@ -6,23 +6,25 @@ import type {
 } from './tbank.client';
 
 export type TbankShare = TbankInstrument & {
-  uid?: string;
-  figi?: string;
-  assetUid?: string;
-  classCode?: string;
-  realExchange?: string;
   apiTradeAvailableFlag?: boolean;
+  assetUid?: string;
+  buyAvailableFlag?: boolean;
+  classCode?: string;
+  countryOfRisk?: string;
   currency?: string;
-  shareType?: string;
-  instrumentKind?: string;
-  sector?: string;
-  lot?: number;
+  figi?: string;
   first_1dayCandleDate?: TbankTimestamp;
+  instrumentKind?: string;
+  lot?: number;
+  realExchange?: string;
+  sector?: string;
+  shareType?: string;
+  uid?: string;
 };
 export type TbankCandle = {
-  time?: TbankTimestamp;
   close?: TbankDecimal;
   isComplete?: boolean;
+  time?: TbankTimestamp;
 };
 export type TbankLastPrice = {
   instrumentUid?: string;
@@ -32,38 +34,38 @@ export type TbankLastPrice = {
 export type TbankFundamentals = {
   assetUid?: string;
   currency?: string;
+  ebitdaTtm?: number;
   marketCapitalization?: number;
+  netDebtToEbitda?: number;
+  netIncomeTtm?: number;
   peRatioTtm?: number;
   priceToBookTtm?: number;
   revenueTtm?: number;
-  netIncomeTtm?: number;
-  ebitdaTtm?: number;
   roe?: number;
   totalDebtMrq?: number;
-  netDebtToEbitda?: number;
 };
 
 export type TbankBond = Omit<TbankShare, 'shareType'> & {
-  nominal?: TbankMoney;
-  initialNominal?: TbankMoney;
   aciValue?: TbankMoney;
-  maturityDate?: TbankTimestamp;
+  amortizationFlag?: boolean;
+  bondType?: string;
   callDate?: TbankTimestamp;
   couponQuantityPerYear?: number;
   floatingCouponFlag?: boolean;
+  initialNominal?: TbankMoney;
+  maturityDate?: TbankTimestamp;
+  nominal?: TbankMoney;
   perpetualFlag?: boolean;
-  amortizationFlag?: boolean;
-  subordinatedFlag?: boolean;
-  bondType?: string;
   riskLevel?: string;
+  subordinatedFlag?: boolean;
 };
 export type TbankCoupon = {
-  couponNumber?: string;
   couponDate?: TbankTimestamp;
+  couponEndDate?: TbankTimestamp;
+  couponNumber?: string;
+  couponPeriod?: number;
+  couponStartDate?: TbankTimestamp;
+  couponType?: string;
   fixDate?: TbankTimestamp;
   payOneBond?: TbankMoney;
-  couponType?: string;
-  couponStartDate?: TbankTimestamp;
-  couponEndDate?: TbankTimestamp;
-  couponPeriod?: number;
 };

src/integrations/tbank/tbank-membership.service.ts

@@ -0,0 +1,70 @@
+import { Injectable } from '@nestjs/common';
+import { randomUUID } from 'node:crypto';
+
+import { StructuredLogger } from '../../common/logging/structured-logger.service';
+import {
+  TbankAccessService,
+  type TbankSyncAttempt,
+} from './tbank-access.service';
+import { isTbankErrorCode, TbankErrorCode } from './tbank-error-code';
+import { TbankClient } from './tbank.client';
+
+@Injectable()
+export class TbankMembershipService {
+  private readonly processRunId = randomUUID();
+  private readonly active = new Map<string, Promise<void>>();
+  private reservations: Promise<unknown> = Promise.resolve();
+
+  constructor(
+    private readonly access: TbankAccessService,
+    private readonly tbank: TbankClient,
+    private readonly logger: StructuredLogger,
+  ) {}
+
+  request(userId: string, revision: string, force = false) {
+    const reservation = this.reservations.then(async () => {
+      const requested = await this.access.reserveMembership(
+        userId,
+        revision,
+        this.processRunId,
+        new Set(this.active.keys()),
+        force,
+      );
+      if (!requested) return null;
+      const { id, attemptId } = requested.work;
+      if (requested.launch) {
+        const done = new Promise<void>((resolve) => setImmediate(resolve))
+          .then(() => this.execute({ userId, revision, id, attemptId }))
+          .catch(() =>
+            this.logger.event('error', 'tbank.membership.persistence_failed', {
+              userId,
+              code: TbankErrorCode.Unavailable,
+            }),
+          )
+          .finally(() => this.active.delete(attemptId));
+        this.active.set(attemptId, done);
+      }
+      return { id, done: this.active.get(attemptId) ?? Promise.resolve() };
+    });
+    this.reservations = reservation.catch(() => undefined);
+    return reservation;
+  }
+
+  private async execute(attempt: TbankSyncAttempt) {
+    try {
+      const token = await this.access.tokenForAttempt(attempt);
+      if (!token) return;
+      await this.access.publishMembership(
+        attempt,
+        await this.tbank.getOpenAccounts(token),
+        new Date(),
+        true,
+      );
+    } catch (error) {
+      await this.access.failMembership(
+        attempt,
+        error instanceof Error && isTbankErrorCode(error.message, TbankErrorCode.InvalidToken),
+      );
+    }
+  }
+}

src/integrations/tbank/tbank-protocol.spec.ts

@@ -0,0 +1,42 @@
+import { loadSync } from '@grpc/proto-loader';
+import { join } from 'node:path';
+
+import { isTbankErrorCode, TbankErrorCode } from './tbank-error-code';
+import {
+  InstrumentIdType,
+  isTbankProtocolValue,
+  TbankAccountStatus,
+  TbankAccountType,
+  TbankCandleInterval,
+  TbankCouponType,
+  TbankInstrumentType,
+  TbankOperationState,
+  TbankOperationType,
+} from './tbank-protocol';
+
+it('uses the string enum values declared by the vendored protocol', () => {
+  const directory = join(__dirname, 'proto/contracts');
+  const definitions = loadSync(['users.proto', 'instruments.proto', 'operations.proto', 'marketdata.proto'].map((file) => join(directory, file)), { includeDirs: [directory], enums: String });
+  for (const [name, values] of Object.entries({
+    InstrumentIdType,
+    InstrumentType: TbankInstrumentType,
+    AccountStatus: TbankAccountStatus,
+    AccountType: TbankAccountType,
+    CandleInterval: TbankCandleInterval,
+    CouponType: TbankCouponType,
+    OperationState: TbankOperationState,
+    OperationType: TbankOperationType,
+  })) {
+    const definition = definitions[`tinkoff.public.invest.api.contract.v1.${name}`];
+    expect(definition).toHaveProperty('format', 'Protocol Buffer 3 EnumDescriptorProto');
+    const descriptor = definition as { type: { value: { name: string }[] } };
+    expect(descriptor.type.value.map((member) => member.name)).toEqual(expect.arrayContaining(Object.values(values)));
+  }
+});
+
+it('recognizes supported wire values without accepting unknown ones', () => {
+  expect(isTbankProtocolValue('OPERATION_STATE_EXECUTED', TbankOperationState.Executed)).toBe(true);
+  expect(isTbankProtocolValue('NEW_UPSTREAM_STATE', TbankOperationState.Executed)).toBe(false);
+  expect(isTbankErrorCode('INVALID_TBANK_TOKEN', TbankErrorCode.InvalidToken)).toBe(true);
+  expect(isTbankErrorCode('NEW_UPSTREAM_ERROR', TbankErrorCode.InvalidToken)).toBe(false);
+});

src/integrations/tbank/tbank-protocol.ts

@@ -0,0 +1,74 @@
+// String wire values for the protocol subset used by this integration.
+// proto-loader decodes enums as strings; vendor contracts remain the source.
+export enum InstrumentIdType {
+  Figi = 'INSTRUMENT_ID_TYPE_FIGI',
+  Uid = 'INSTRUMENT_ID_TYPE_UID',
+}
+
+export enum TbankInstrumentStatus {
+  All = 'INSTRUMENT_STATUS_ALL',
+}
+
+export enum TbankInstrumentType {
+  Bond = 'INSTRUMENT_TYPE_BOND',
+  Share = 'INSTRUMENT_TYPE_SHARE',
+}
+
+export enum TbankAccountStatus {
+  Open = 'ACCOUNT_STATUS_OPEN',
+}
+
+export enum TbankAccountType {
+  InvestBox = 'ACCOUNT_TYPE_INVEST_BOX',
+  InvestFund = 'ACCOUNT_TYPE_INVEST_FUND',
+  Tinkoff = 'ACCOUNT_TYPE_TINKOFF',
+  TinkoffIis = 'ACCOUNT_TYPE_TINKOFF_IIS',
+}
+
+export enum TbankCandleInterval {
+  Day = 'CANDLE_INTERVAL_DAY',
+}
+
+export enum TbankOperationState {
+  Executed = 'OPERATION_STATE_EXECUTED',
+}
+
+export enum TbankCouponType {
+  Floating = 'COUPON_TYPE_FLOATING',
+  Unspecified = 'COUPON_TYPE_UNSPECIFIED',
+}
+
+export enum TbankOperationType {
+  BondTax = 'OPERATION_TYPE_BOND_TAX',
+  BrokerFee = 'OPERATION_TYPE_BROKER_FEE',
+  Buy = 'OPERATION_TYPE_BUY',
+  BuyCard = 'OPERATION_TYPE_BUY_CARD',
+  BuyMargin = 'OPERATION_TYPE_BUY_MARGIN',
+  Coupon = 'OPERATION_TYPE_COUPON',
+  DivExt = 'OPERATION_TYPE_DIV_EXT',
+  Dividend = 'OPERATION_TYPE_DIVIDEND',
+  DividendTax = 'OPERATION_TYPE_DIVIDEND_TAX',
+  DividendTransfer = 'OPERATION_TYPE_DIVIDEND_TRANSFER',
+  Input = 'OPERATION_TYPE_INPUT',
+  InputSecurities = 'OPERATION_TYPE_INPUT_SECURITIES',
+  MarginFee = 'OPERATION_TYPE_MARGIN_FEE',
+  Output = 'OPERATION_TYPE_OUTPUT',
+  OutputSecurities = 'OPERATION_TYPE_OUTPUT_SECURITIES',
+  Sell = 'OPERATION_TYPE_SELL',
+  SellCard = 'OPERATION_TYPE_SELL_CARD',
+  SellMargin = 'OPERATION_TYPE_SELL_MARGIN',
+  ServiceFee = 'OPERATION_TYPE_SERVICE_FEE',
+  SuccessFee = 'OPERATION_TYPE_SUCCESS_FEE',
+  Tax = 'OPERATION_TYPE_TAX',
+  TransBsBs = 'OPERATION_TYPE_TRANS_BS_BS',
+  TransIisBs = 'OPERATION_TYPE_TRANS_IIS_BS',
+  Unspecified = 'OPERATION_TYPE_UNSPECIFIED',
+}
+
+// Provider responses may contain values newer than our supported protocol subset.
+export function isTbankProtocolValue(
+  value: unknown,
+  expected: TbankCouponType | TbankInstrumentType | TbankOperationState | TbankOperationType,
+): boolean {
+  return value === expected;
+}

src/integrations/tbank/tbank-source.policy.spec.ts

@@ -0,0 +1,34 @@
+import {
+  tbankSourceNeedsRefresh,
+  tbankSourceTtlMs,
+} from './tbank-source.policy';
+
+describe('mutable source freshness', () => {
+  it.each(Object.keys(tbankSourceTtlMs) as (keyof typeof tbankSourceTtlMs)[])(
+    '%s expires at its boundary without changing source time',
+    (source) => {
+      const fetchedAt = new Date('2026-09-01Z');
+      // eslint-disable-next-line security/detect-object-injection -- The key comes from the local source-policy test table.
+      const ttl = tbankSourceTtlMs[source];
+      expect(
+        tbankSourceNeedsRefresh(
+          source,
+          fetchedAt,
+          new Date(fetchedAt.valueOf() + ttl - 1000),
+        ),
+      ).toBe(false);
+      expect(
+        tbankSourceNeedsRefresh(
+          source,
+          fetchedAt,
+          new Date(fetchedAt.valueOf() + ttl),
+        ),
+      ).toBe(true);
+      expect(tbankSourceNeedsRefresh(source, fetchedAt, fetchedAt, true)).toBe(
+        true,
+      );
+      expect(tbankSourceNeedsRefresh(source, null, fetchedAt)).toBe(true);
+      expect(fetchedAt.toISOString()).toBe('2026-09-01T00:00:00.000Z');
+    },
+  );
+});

src/integrations/tbank/tbank-source.policy.ts

@@ -0,0 +1,22 @@
+// Freshness never establishes completeness. Immutable ranges are planned by
+// their coverage owners; these TTLs apply only to mutable source snapshots.
+export const tbankSourceTtlMs = {
+  membership: 3_600_000,
+  portfolio: 3_600_000,
+  quote: 3_600_000,
+  candleTail: 3_600_000,
+} as const;
+
+export function tbankSourceNeedsRefresh(
+  source: keyof typeof tbankSourceTtlMs,
+  fetchedAt: Date | null,
+  now: Date,
+  force = false,
+): boolean {
+  return (
+    force ||
+    !fetchedAt ||
+    // eslint-disable-next-line security/detect-object-injection -- The key is a member of the closed TbankSource union.
+    now.valueOf() - fetchedAt.valueOf() >= tbankSourceTtlMs[source]
+  );
+}

src/integrations/tbank/tbank-token.service.ts

@@ -1,6 +1,8 @@
 import { BadRequestException, Injectable } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
+
 import { Environment } from '../../config/env.validation';
+import { isTbankErrorCode, TbankErrorCode } from './tbank-error-code';
 import { TbankCrypto } from './tbank.crypto';
 
 @Injectable()
@@ -25,8 +27,9 @@ export class TbankTokenService {
     try {
       return await operation();
     } catch (error) {
-      if (error instanceof Error && error.message === 'INVALID_TBANK_TOKEN')
-        throw new BadRequestException({ code: 'INVALID_TBANK_TOKEN' });
+      if (error instanceof Error && isTbankErrorCode(error.message, TbankErrorCode.InvalidToken)) {
+        throw new BadRequestException({ code: TbankErrorCode.InvalidToken });
+      }
       throw error;
     }
   }

src/integrations/tbank/tbank.api.ts

@@ -1,15 +1,28 @@
 // Public cross-module surface. Nest providers are exported by the matching module.
 export { InstrumentMetadataService } from './instrument-metadata.service';
+export { metadataKey } from './instrument-metadata.service';
+export type { MetadataIdentity } from './instrument-metadata.service';
 export {
   TbankAccessService,
-  type TbankConnectionContext,
+  type TbankSyncAttempt,
 } from './tbank-access.service';
+export { supportedTbankAccounts } from './tbank-account.policy';
 export {
   type TbankBond,
   type TbankCandle,
+  type TbankCoupon,
   type TbankFundamentals,
+  type TbankLastPrice,
   type TbankShare,
 } from './tbank-market.types';
+
+export { TbankMembershipService } from './tbank-membership.service';
+
+export {
+  tbankSourceNeedsRefresh,
+  tbankSourceTtlMs,
+} from './tbank-source.policy';
+
 export { TbankTokenService } from './tbank-token.service';
 export {
   TbankClient,
@@ -17,6 +30,7 @@ export {
   type TbankInstrument,
   type TbankMoney,
   type TbankOperationItem,
+  type TbankOperationsByCursorResponse,
   type TbankPortfolio,
   type TbankPositions,
   type TbankTimestamp,

src/integrations/tbank/tbank.client.spec.ts

@@ -1,5 +1,8 @@
-import { status } from '@grpc/grpc-js';
+import { Metadata, status } from '@grpc/grpc-js';
 import { NotFoundException, ServiceUnavailableException } from '@nestjs/common';
+import { EventEmitter } from 'node:events';
+
+import { TbankOperationState } from './tbank-protocol';
 import { TbankClient } from './tbank.client';
 
 describe('TbankClient operations', () => {
@@ -9,7 +12,7 @@ describe('TbankClient operations', () => {
     to: { seconds: '2' },
     cursor: 'cursor',
     limit: 10,
-    state: 'OPERATION_STATE_EXECUTED' as const,
+    state: TbankOperationState.Executed,
   };
 
   it('passes a cursor operations request to OperationsService', async () => {
@@ -46,11 +49,27 @@ describe('TbankClient operations', () => {
         seconds: String(Math.floor(Date.parse('2026-08-19T00:00:00Z') / 1000)),
       },
       to: {
-        seconds: String(Math.floor(Date.parse('2026-09-18T00:00:00Z') / 1000)),
+        seconds: String(Math.floor(Date.parse('2026-09-19T00:00:00Z') / 1000)),
       },
     });
   });
 
+  it.each(['getDividends', 'getBondCoupons'] as const)(
+    '%s converts a leap-day calendar window to a full half-open UTC day',
+    async (method) => {
+      const client = Object.create(TbankClient.prototype) as TbankClient;
+      const call = jest.fn().mockResolvedValue({});
+      (client as unknown as { call: jest.Mock }).call = call;
+      // eslint-disable-next-line security/detect-object-injection -- RPC method names come from the literal test table.
+      await client[method]('token', 'uid', '2024-02-29', '2024-02-29');
+      expect(call).toHaveBeenCalledWith('token', undefined, method, {
+        instrumentId: 'uid',
+        from: { seconds: String(Date.parse('2024-02-29T00:00:00Z') / 1000) },
+        to: { seconds: String(Date.parse('2024-03-01T00:00:00Z') / 1000) },
+      });
+    },
+  );
+
   it('propagates the normalized upstream error', async () => {
     const client = Object.create(TbankClient.prototype) as TbankClient;
     const error = new ServiceUnavailableException({
@@ -96,11 +115,10 @@ describe('TbankClient operations', () => {
       ok: true,
     });
     const failed = invoke('token', {}, 'getPortfolio', {});
-    const rejected = expect(failed).rejects.toEqual(
-      expect.any(ServiceUnavailableException),
-    );
-    await jest.advanceTimersByTimeAsync(1000);
-    await rejected;
+    await Promise.all([
+      expect(failed).rejects.toEqual(expect.any(ServiceUnavailableException)),
+      jest.advanceTimersByTimeAsync(1000),
+    ]);
 
     expect(logger.event).toHaveBeenCalledWith(
       'debug',
@@ -119,13 +137,77 @@ describe('TbankClient operations', () => {
     );
     jest.useRealTimers();
   });
+
+  it('distinguishes a gRPC deadline from queue delay without logging upstream secrets', async () => {
+    const logger = { event: jest.fn() };
+    const client = Object.assign(Object.create(TbankClient.prototype) as TbankClient, {
+      logger,
+      queue: { size: 0, run: (operation: () => Promise<unknown>) => operation() },
+    });
+    const channel = { getConnectivityState: () => 1 };
+    const service = {
+      getChannel: () => channel,
+      getAccounts: (_input: unknown, _metadata: unknown, _options: unknown, callback: (error: unknown) => void) => {
+        const call = new EventEmitter();
+        void Promise.resolve().then(() => callback({ code: status.DEADLINE_EXCEEDED, details: 'Bearer secret' }));
+        return call;
+      },
+    };
+    const invoke = (client as unknown as { call: (token: string, service: unknown, method: string, input: object) => Promise<unknown> }).call.bind(client);
+    jest.useFakeTimers();
+    try {
+      const failed = invoke('secret', service, 'getAccounts', {});
+      await Promise.all([
+        expect(failed).rejects.toBeInstanceOf(ServiceUnavailableException),
+        jest.advanceTimersByTimeAsync(1000),
+      ]);
+      expect(logger.event).toHaveBeenLastCalledWith('error', 'tbank.rpc.failed', expect.objectContaining({
+        operation: 'getAccounts', grpcCode: status.DEADLINE_EXCEEDED,
+        queueWaitMs: 0, channelState: 'CONNECTING', headersReceived: false,
+      }));
+      const [, , fields] = logger.event.mock.calls.at(-1) as [string, string, { networkMs: unknown }];
+      expect(typeof fields.networkMs).toBe('number');
+      expect(JSON.stringify(logger.event.mock.calls)).not.toContain('secret');
+    } finally {
+      jest.useRealTimers();
+    }
+  });
+
+  it('records response headers and a validated upstream tracking ID', async () => {
+    const logger = { event: jest.fn() };
+    const client = Object.assign(Object.create(TbankClient.prototype) as TbankClient, {
+      logger,
+      queue: { size: 0, run: (operation: () => Promise<unknown>) => operation() },
+    });
+    const headers = new Metadata();
+    headers.set('x-tracking-id', '123e4567-e89b-12d3-a456-426614174000');
+    headers.set('authorization', 'Bearer secret');
+    const service = {
+      getChannel: () => ({ getConnectivityState: () => 2 }),
+      getAccounts: (_input: unknown, _metadata: unknown, _options: unknown, callback: (error: null, response: object) => void) => {
+        const call = new EventEmitter();
+        void Promise.resolve().then(() => {
+          call.emit('metadata', headers);
+          callback(null, { accounts: [] });
+        });
+        return call;
+      },
+    };
+    const invoke = (client as unknown as { call: (token: string, service: unknown, method: string, input: object) => Promise<unknown> }).call.bind(client);
+    await expect(invoke('secret', service, 'getAccounts', {})).resolves.toEqual({ accounts: [] });
+    expect(logger.event).toHaveBeenLastCalledWith('debug', 'tbank.rpc.completed', expect.objectContaining({
+      channelState: 'READY', headersReceived: true,
+      trackingId: '123e4567-e89b-12d3-a456-426614174000',
+    }));
+    expect(JSON.stringify(logger.event.mock.calls)).not.toContain('secret');
+  });
 });
 
 describe('TbankClient metadata retries', () => {
   const instrument = { name: 'Облигация', ticker: 'BOND' };
   let client: TbankClient;
   let requestRpc: jest.Mock;
-  let queue: { size: number; run: jest.Mock };
+  let queue: { run: jest.Mock; size: number };
   let logger: {
     event: jest.Mock<void, [string, string, Record<string, unknown>]>;
   };
@@ -159,46 +241,30 @@ describe('TbankClient metadata retries', () => {
     status.DEADLINE_EXCEEDED,
     status.RESOURCE_EXHAUSTED,
   ])(
-    'recovers metadata after transient gRPC status %s with 2s/4s pauses',
+    'recovers metadata after one retry for transient gRPC status %s',
     async (code) => {
       requestRpc
-        .mockRejectedValueOnce({ code })
         .mockRejectedValueOnce({ code })
         .mockResolvedValueOnce({ instrument });
 
       const result = client.getInstrumentByUid('token', 'uid');
-      await jest.advanceTimersByTimeAsync(1999);
+      await jest.advanceTimersByTimeAsync(999);
       expect(requestRpc).toHaveBeenCalledTimes(1);
       await jest.advanceTimersByTimeAsync(1);
       expect(requestRpc).toHaveBeenCalledTimes(2);
-      await jest.advanceTimersByTimeAsync(3999);
-      expect(requestRpc).toHaveBeenCalledTimes(2);
-      await jest.advanceTimersByTimeAsync(1);
-
       await expect(result).resolves.toEqual(instrument);
-      expect(queue.run).toHaveBeenCalledTimes(3);
+      expect(queue.run).toHaveBeenCalledTimes(2);
       expect(jest.getTimerCount()).toBe(0);
     },
   );
 
-  it('rechecks a full queue before admitting a metadata retry', async () => {
+  it('rejects metadata immediately when the queue is full', async () => {
     queue.size = 50;
     requestRpc.mockResolvedValue({ instrument });
 
-    const result = client.getInstrumentByFigi('token', 'figi');
-    await jest.advanceTimersByTimeAsync(1999);
+    await expect(client.getInstrumentByFigi('token', 'figi')).rejects.toBeInstanceOf(ServiceUnavailableException);
     expect(queue.run).not.toHaveBeenCalled();
-    queue.size = 49;
-    await jest.advanceTimersByTimeAsync(1);
-
-    await expect(result).resolves.toEqual(instrument);
-    expect(queue.run).toHaveBeenCalledTimes(1);
-    expect(logger.event).toHaveBeenCalledWith(
-      'warn',
-      'tbank.rpc.retry',
-      expect.objectContaining({ code: 'TBANK_UNAVAILABLE', attempts: 1 }),
-    );
-    expect(logger.event.mock.calls[0][2]).not.toHaveProperty('grpcCode');
+    expect(jest.getTimerCount()).toBe(0);
   });
 
   it('does not bypass queue admission after an upstream failure', async () => {
@@ -206,46 +272,22 @@ describe('TbankClient metadata retries', () => {
       .mockRejectedValueOnce({ code: status.UNAVAILABLE })
       .mockResolvedValueOnce({ instrument });
 
-    const result = client.getInstrumentByUid('token', 'uid');
+    const result = client.getInstrumentByUid('token', 'uid').catch((error: unknown) => error);
     queue.size = 50;
-    await jest.advanceTimersByTimeAsync(2000);
+    await jest.advanceTimersByTimeAsync(1000);
     expect(queue.run).toHaveBeenCalledTimes(1);
-    queue.size = 0;
-    await jest.advanceTimersByTimeAsync(4000);
-
-    await expect(result).resolves.toEqual(instrument);
-    expect(queue.run).toHaveBeenCalledTimes(2);
-  });
-
-  it('stops retrying a saturated queue after three admission attempts', async () => {
-    queue.size = 50;
-    const result = expect(
-      client.getInstrumentByUid('token', 'uid'),
-    ).rejects.toBeInstanceOf(ServiceUnavailableException);
-
-    await jest.advanceTimersByTimeAsync(6000);
-    await result;
-
-    expect(queue.run).not.toHaveBeenCalled();
-    expect(logger.event).toHaveBeenCalledTimes(3);
-    expect(logger.event).toHaveBeenLastCalledWith(
-      'error',
-      'tbank.rpc.failed',
-      expect.objectContaining({ code: 'TBANK_UNAVAILABLE', attempts: 3 }),
-    );
+    expect(await result).toBeInstanceOf(ServiceUnavailableException);
     expect(jest.getTimerCount()).toBe(0);
   });
 
-  it('stops retrying an unavailable upstream after three RPCs', async () => {
+  it('stops retrying an unavailable upstream after two RPCs', async () => {
     requestRpc.mockRejectedValue({ code: status.UNAVAILABLE });
-    const result = expect(
-      client.getInstrumentByUid('token', 'uid'),
-    ).rejects.toBeInstanceOf(ServiceUnavailableException);
+    await Promise.all([
+      expect(client.getInstrumentByUid('token', 'uid')).rejects.toBeInstanceOf(ServiceUnavailableException),
+      jest.advanceTimersByTimeAsync(1000),
+    ]);
 
-    await jest.advanceTimersByTimeAsync(6000);
-    await result;
-
-    expect(queue.run).toHaveBeenCalledTimes(3);
+    expect(queue.run).toHaveBeenCalledTimes(2);
     expect(jest.getTimerCount()).toBe(0);
   });
 
@@ -267,6 +309,7 @@ describe('TbankClient metadata retries', () => {
     async (method) => {
       requestRpc.mockRejectedValue({ code: status.NOT_FOUND });
 
+      // eslint-disable-next-line security/detect-object-injection -- RPC method names come from the literal test table.
       await expect(client[method]('token', 'instrument')).resolves.toBeNull();
       expect(requestRpc).toHaveBeenCalledTimes(1);
       expect(jest.getTimerCount()).toBe(0);
@@ -304,3 +347,141 @@ describe('TbankClient metadata retries', () => {
     expect(jest.getTimerCount()).toBe(0);
   });
 });
+
+describe('TbankClient share catalog', () => {
+  const token = 'token';
+  const catalogSize = 40;
+  let client: TbankClient;
+  let call: jest.Mock;
+  let logger: {
+    event: jest.Mock<void, [string, string, Record<string, number | string>]>;
+  };
+
+  beforeEach(() => {
+    call = jest.fn();
+    logger = {
+      event: jest.fn<void, [string, string, Record<string, number | string>]>(),
+    };
+    client = Object.assign(
+      Object.create(TbankClient.prototype) as TbankClient,
+      { call, logger },
+    );
+  });
+
+  it('fetches the full share catalog through Shares with INSTRUMENT_STATUS_ALL', async () => {
+    const instruments = [{ ticker: 'AFLT', uid: 'uid-aflt' }];
+    call.mockResolvedValue({ instruments });
+
+    await expect(client.getAllShares(token)).resolves.toEqual(instruments);
+    expect(call).toHaveBeenCalledWith('token', undefined, 'shares', {
+      instrumentStatus: 'INSTRUMENT_STATUS_ALL',
+    });
+  });
+
+  it('returns the whole catalog including a fitting instrument beyond the first 30 text matches', async () => {
+    const catalog = Array.from({ length: catalogSize }, (_, index) => {
+      const fitting = index === catalogSize - 1;
+      return {
+        apiTradeAvailableFlag: fitting,
+        buyAvailableFlag: fitting,
+        ticker: fitting ? 'FIT' : `T${index}`,
+        uid: fitting ? 'uid-fit' : `uid-${index}`,
+      };
+    });
+    call.mockResolvedValue({ instruments: catalog });
+
+    const shares = await client.getAllShares(token);
+
+    expect(shares).toEqual(catalog);
+    expect(shares).toHaveLength(catalogSize);
+    expect(shares).toContainEqual({
+      apiTradeAvailableFlag: true,
+      buyAvailableFlag: true,
+      ticker: 'FIT',
+      uid: 'uid-fit',
+    });
+  });
+
+  it('rejects when the source refuses instead of returning an empty success', async () => {
+    const error = new ServiceUnavailableException({
+      code: 'TBANK_UNAVAILABLE',
+    });
+    call.mockRejectedValue(error);
+
+    await expect(client.getAllShares(token)).rejects.toBe(error);
+  });
+
+  it('rejects when the response carries no instrument list', async () => {
+    call.mockResolvedValue({});
+
+    await expect(client.getAllShares(token)).rejects.toBeInstanceOf(
+      ServiceUnavailableException,
+    );
+  });
+
+  it('rejects an empty instrument list with the public unavailable code', async () => {
+    call.mockResolvedValue({ instruments: [] });
+
+    const failure = await client
+      .getAllShares(token)
+      .catch((error: unknown) => error);
+
+    expect(failure).toBeInstanceOf(ServiceUnavailableException);
+    expect((failure as ServiceUnavailableException).getResponse()).toEqual({
+      code: 'TBANK_UNAVAILABLE',
+    });
+  });
+
+  it('rejects a non-list instrument payload as uninterpretable', async () => {
+    call.mockResolvedValue({ instruments: 'corrupted' });
+
+    await expect(client.getAllShares(token)).rejects.toBeInstanceOf(
+      ServiceUnavailableException,
+    );
+  });
+
+  it('rejects an uninterpretable entry without instrument identity', async () => {
+    call.mockResolvedValue({
+      instruments: [
+        { ticker: 'FIT', uid: 'uid-fit' },
+        { ticker: 'BROKEN' },
+      ],
+    });
+
+    await expect(client.getAllShares(token)).rejects.toBeInstanceOf(
+      ServiceUnavailableException,
+    );
+  });
+
+  it('registers asOf and source instrument count on a successful catalog fetch', async () => {
+    call.mockResolvedValue({
+      instruments: [{ uid: 'uid-a' }, { uid: 'uid-b' }],
+    });
+
+    await client.getAllShares(token);
+
+    expect(logger.event).toHaveBeenCalledWith(
+      'info',
+      'tbank.shares.catalog.fetched',
+      expect.objectContaining({ count: 2, operation: 'shares' }),
+    );
+    expect(logger.event.mock.calls[0][2].asOf).toEqual(expect.any(String));
+  });
+
+  it('logs a distinguishable failure without secrets when the catalog is unusable', async () => {
+    call.mockResolvedValue({ instruments: [] });
+
+    await expect(client.getAllShares('secret-token')).rejects.toBeInstanceOf(
+      ServiceUnavailableException,
+    );
+
+    expect(logger.event).toHaveBeenCalledWith(
+      'error',
+      'tbank.shares.catalog.unusable',
+      expect.objectContaining({ operation: 'shares' }),
+    );
+    expect(JSON.stringify(logger.event.mock.calls)).not.toContain(
+      'secret-token',
+    );
+  });
+});

src/integrations/tbank/tbank.client.ts

@@ -1,8 +1,8 @@
-import { MILLISECONDS_PER_SECOND } from '../../common/time';
 import {
   ChannelCredentials,
   Client,
   ClientUnaryCall,
+  connectivityState,
   loadPackageDefinition,
   Metadata,
   ServiceError,
@@ -17,8 +17,6 @@ import {
 import { ConfigService } from '@nestjs/config';
 import { readFileSync } from 'node:fs';
 import { join } from 'node:path';
-import { StructuredLogger } from '../../common/logging/structured-logger.service';
-import { Environment } from '../../config/env.validation';
 
 import type {
   TbankBond,
@@ -29,11 +27,29 @@ import type {
   TbankShare,
 } from './tbank-market.types';
 
+import { StructuredLogger } from '../../common/logging/structured-logger.service';
+import { MILLISECONDS_PER_SECOND } from '../../common/time';
+import { Environment } from '../../config/env.validation';
+import { TbankErrorCode } from './tbank-error-code';
+import {
+  InstrumentIdType,
+  TbankAccountStatus,
+  TbankCandleInterval,
+  TbankInstrumentStatus,
+  TbankInstrumentType,
+  TbankOperationState,
+} from './tbank-protocol';
+
+const INITIAL_REQUEST_COUNT = 0;
+const MIN_RATE_DELAY_MS = 1;
+const FIRST_ATTEMPT = 1;
+const ATTEMPT_INCREMENT = 1;
+const NO_RPC_ATTEMPTS = 0;
+const NEXT_DAY_OFFSET = 1;
+
 const RATE_WINDOW_MS = 1_000;
-const METADATA_MAX_ATTEMPTS = 3;
 const RPC_MAX_ATTEMPTS = 2;
 const MAX_QUEUE_SIZE = 50;
-const METADATA_RETRY_DELAY_MS = 2_000;
 const RPC_RETRY_DELAY_MS = 1_000;
 
 const requestDeadlineMs = 15_000;
@@ -42,74 +58,85 @@ type Unary<Request, Response> = (
   request: Request,
   metadata: Metadata,
   options: { deadline: Date },
-  callback: (error: ServiceError | null, response: Response) => void,
+  callback: (error: null | ServiceError, response: Response) => void,
 ) => ClientUnaryCall;
 type TbankClientService = Client & Record<string, Unary<never, never>>;
-export type TbankDecimal = { units?: string | number; nano?: string | number };
+type RpcDiagnostics = {
+  channelState?: string;
+  headersReceived?: boolean;
+  networkMs?: number;
+  queueWaitMs?: number;
+  trackingId?: string;
+};
+export type TbankDecimal = { nano?: number | string; units?: number | string };
 export type TbankMoney = TbankDecimal & { currency?: string };
 export type TbankAccount = {
   id: string;
-  type: string;
   name: string;
-  openedDate?: { seconds?: string | number };
+  openedDate?: { seconds?: number | string };
+  type: string;
 };
 export type TbankPortfolio = {
   positions?: {
-    figi?: string;
-    instrumentUid?: string;
-    instrumentType?: string;
-    ticker?: string;
-    quantity?: TbankDecimal;
-    currentPrice?: TbankMoney;
     averagePositionPrice?: TbankMoney;
+    currentPrice?: TbankMoney;
+    figi?: string;
+    instrumentType?: string;
+    instrumentUid?: string;
+    quantity?: TbankDecimal;
+    ticker?: string;
   }[];
 };
 export type TbankPositions = { money?: TbankMoney[] };
 export type TbankInstrument = {
-  ticker?: string;
-  name?: string;
+  brand?: { logoName?: null | string };
+  figi?: string;
+  instrumentType?: string;
   isin?: string;
-  brand?: { logoName?: string | null };
+  name?: string;
+  ticker?: string;
+  uid?: string;
 };
 export type TbankDividend = {
   dividendNet?: TbankMoney;
-  recordDate?: TbankTimestamp;
-  paymentDate?: TbankTimestamp;
-  lastBuyDate?: TbankTimestamp;
   dividendType?: string;
+  lastBuyDate?: TbankTimestamp;
+  paymentDate?: TbankTimestamp;
+  recordDate?: TbankTimestamp;
 };
-export type TbankTimestamp = { seconds?: string | number; nanos?: number };
+export type TbankTimestamp = { nanos?: number; seconds?: number | string };
 export type TbankOperationItem = {
+  accruedInt?: TbankMoney;
+  commission?: TbankMoney;
   cursor?: string;
-  id?: string;
-  name?: string;
   date?: TbankTimestamp;
-  type?: string;
   description?: string;
   figi?: string;
-  instrumentUid?: string;
+  id?: string;
   instrumentType?: string;
-  ticker?: string;
+  instrumentUid?: string;
+  name?: string;
   payment?: TbankMoney;
   price?: TbankMoney;
-  commission?: TbankMoney;
-  accruedInt?: TbankMoney;
-  quantity?: string | number;
-  quantityDone?: string | number;
+  quantity?: number | string;
+  quantityDone?: number | string;
+  state?: string;
+  ticker?: string;
+  type?: string;
 };
 export type TbankOperationsByCursorRequest = {
   accountId: string;
-  instrumentId?: string;
-  from?: TbankTimestamp;
-  to?: TbankTimestamp;
   cursor?: string;
+  from?: TbankTimestamp;
+  instrumentId?: string;
   limit?: number;
-  state: 'OPERATION_STATE_EXECUTED';
+  state: TbankOperationState.Executed;
+  to?: TbankTimestamp;
 };
 export type TbankOperationsByCursorResponse = {
   hasNext?: boolean;
-  nextCursor?: string;
   items?: TbankOperationItem[];
+  nextCursor?: string;
 };
 type TbankNamespace = {
   tinkoff: {
@@ -119,7 +146,7 @@ type TbankNamespace = {
 
 class RateLimiter {
   private readonly waiting: (() => void)[] = [];
-  private starts = 0;
+  private starts = INITIAL_REQUEST_COUNT;
   private windowStartedAt = Date.now();
 
   constructor(private readonly perSecond: number) {}
@@ -144,16 +171,16 @@ class RateLimiter {
     const now = Date.now();
     if (now - this.windowStartedAt >= RATE_WINDOW_MS) {
       this.windowStartedAt = now;
-      this.starts = 0;
+      this.starts = INITIAL_REQUEST_COUNT;
     }
     while (this.starts < this.perSecond && this.waiting.length) {
-      this.starts += 1;
+      this.starts++;
       this.waiting.shift()?.();
     }
     if (this.waiting.length && this.starts === this.perSecond) {
       setTimeout(
         () => this.drain(),
-        Math.max(1, RATE_WINDOW_MS - (now - this.windowStartedAt)),
+        Math.max(MIN_RATE_DELAY_MS, RATE_WINDOW_MS - (now - this.windowStartedAt)),
       );
     }
   }
@@ -194,11 +221,13 @@ export class TbankClient {
     ).tinkoff.public.invest.api.contract.v1;
     const caPath = config.get<string | undefined>('TBANK_CA_CERT_PATH');
     const credentials = caPath
+    // eslint-disable-next-line security/detect-non-literal-fs-filename -- The CA path is trusted operator configuration, never supplied by an HTTP request.
       ? ChannelCredentials.createSsl(readFileSync(caPath))
       : ChannelCredentials.createSsl();
     const endpoint = config.getOrThrow<string>('TBANK_GRPC_ENDPOINT');
     const create = (name: string) =>
       new (
+        // eslint-disable-next-line security/detect-object-injection -- Service and method names are internal RPC selections, not request input.
         services[name] as new (
           address: string,
           credentials: ChannelCredentials,
@@ -233,8 +262,8 @@ export class TbankClient {
     this.logger.info('tbank.client.configured');
   }
 
-  async validateToken(token: string): Promise<void> {
-    await this.getOpenAccounts(token);
+  validateToken(token: string): Promise<TbankAccount[]> {
+    return this.getOpenAccounts(token);
   }
 
   getOpenAccounts(token: string): Promise<TbankAccount[]> {
@@ -242,7 +271,7 @@ export class TbankClient {
       token,
       this.users,
       'getAccounts',
-      { status: 'ACCOUNT_STATUS_OPEN' },
+      { status: TbankAccountStatus.Open },
     ).then((response) => response.accounts ?? []);
   }
 
@@ -264,15 +293,15 @@ export class TbankClient {
   getInstrumentByFigi(
     token: string,
     figi: string,
-  ): Promise<TbankInstrument | null> {
-    return this.getInstrument(token, 'INSTRUMENT_ID_TYPE_FIGI', figi);
+  ): Promise<null | TbankInstrument> {
+    return this.getInstrument(token, InstrumentIdType.Figi, figi);
   }
 
   getInstrumentByUid(
     token: string,
     instrumentUid: string,
-  ): Promise<TbankInstrument | null> {
-    return this.getInstrument(token, 'INSTRUMENT_ID_TYPE_UID', instrumentUid);
+  ): Promise<null | TbankInstrument> {
+    return this.getInstrument(token, InstrumentIdType.Uid, instrumentUid);
   }
 
   getDividends(
@@ -288,7 +317,7 @@ export class TbankClient {
       {
         instrumentId,
         from: { seconds: String(utcSeconds(from)) },
-        to: { seconds: String(utcSeconds(to)) },
+        to: { seconds: String(utcSeconds(to, true)) },
       },
     ).then((response) => response.dividends ?? []);
   }
@@ -300,11 +329,40 @@ export class TbankClient {
       'findInstrument',
       {
         query,
-        instrumentKind: 'INSTRUMENT_TYPE_SHARE',
+        instrumentKind: TbankInstrumentType.Share,
       },
     ).then((response) => response.instruments ?? []);
   }
 
+  async getAllShares(token: string): Promise<TbankShare[]> {
+    const response = await this.call<{ instruments?: TbankShare[] }>(
+      token,
+      this.instruments,
+      'shares',
+      { instrumentStatus: TbankInstrumentStatus.All },
+    );
+    const { instruments } = response;
+    if (
+      !Array.isArray(instruments) ||
+      !instruments.length ||
+      instruments.some((item) => !item?.uid)
+    ) {
+      this.logger.event('error', 'tbank.shares.catalog.unusable', {
+        code: TbankErrorCode.Unavailable,
+        operation: 'shares',
+      });
+      throw new ServiceUnavailableException({
+        code: TbankErrorCode.Unavailable,
+      });
+    }
+    this.logger.event('info', 'tbank.shares.catalog.fetched', {
+      asOf: new Date().toISOString(),
+      count: instruments.length,
+      operation: 'shares',
+    });
+    return instruments;
+  }
+
   findBonds(token: string, query: string): Promise<TbankBond[]> {
     return this.call<{ instruments?: TbankBond[] }>(
       token,
@@ -312,21 +370,23 @@ export class TbankClient {
       'findInstrument',
       {
         query,
-        instrumentKind: 'INSTRUMENT_TYPE_BOND',
+        instrumentKind: TbankInstrumentType.Bond,
       },
     ).then((response) => response.instruments ?? []);
   }
-  getBond(token: string, uid: string): Promise<TbankBond | null> {
+
+  getBond(token: string, uid: string): Promise<null | TbankBond> {
     return this.call<{ instrument?: TbankBond }>(
       token,
       this.sparseInstruments,
       'bondBy',
       {
-        idType: 'INSTRUMENT_ID_TYPE_UID',
+        idType: InstrumentIdType.Uid,
         id: uid,
       },
     ).then((response) => response.instrument ?? null);
   }
+
   getBondCoupons(
     token: string,
     uid: string,
@@ -340,24 +400,24 @@ export class TbankClient {
       {
         instrumentId: uid,
         from: { seconds: String(utcSeconds(from)) },
-        to: { seconds: String(utcSeconds(to)) },
+        to: { seconds: String(utcSeconds(to, true)) },
       },
     ).then((response) => response.events ?? []);
   }
 
-  getShare(token: string, uid: string): Promise<TbankShare | null> {
+  getShare(token: string, uid: string): Promise<null | TbankShare> {
     return this.call<{ instrument?: TbankShare }>(
       token,
       this.instruments,
       'shareBy',
       {
-        idType: 'INSTRUMENT_ID_TYPE_UID',
+        idType: InstrumentIdType.Uid,
         id: uid,
       },
     ).then((response) => response.instrument ?? null);
   }
 
-  getAssetDescription(token: string, assetUid: string): Promise<string | null> {
+  getAssetDescription(token: string, assetUid: string): Promise<null | string> {
     return this.call<{ asset?: { description?: string } }>(
       token,
       this.instruments,
@@ -371,7 +431,7 @@ export class TbankClient {
   getFundamentals(
     token: string,
     assetUid: string,
-  ): Promise<TbankFundamentals | null> {
+  ): Promise<null | TbankFundamentals> {
     return this.call<{ fundamentals?: TbankFundamentals[] }>(
       token,
       this.sparseInstruments,
@@ -395,13 +455,7 @@ export class TbankClient {
     ).then((response) => response.lastPrices ?? []);
   }
 
-  getLastPrice(token: string, uid: string): Promise<TbankLastPrice | null> {
-    return this.getLastPrices(token, [uid]).then(
-      (prices) => prices.find((item) => item.instrumentUid === uid) ?? null,
-    );
-  }
-
-  getTradingStatus(token: string, uid: string): Promise<string | null> {
+  getTradingStatus(token: string, uid: string): Promise<null | string> {
     return this.call<{ tradingStatus?: string }>(
       token,
       this.marketData,
@@ -430,7 +484,7 @@ export class TbankClient {
         to: {
           seconds: String(Math.floor(to.valueOf() / MILLISECONDS_PER_SECOND)),
         },
-        interval: 'CANDLE_INTERVAL_DAY',
+        interval: TbankCandleInterval.Day,
         limit: 2400,
       },
     ).then((response) => response.candles ?? []);
@@ -438,9 +492,9 @@ export class TbankClient {
 
   private async getInstrument(
     token: string,
-    idType: 'INSTRUMENT_ID_TYPE_UID' | 'INSTRUMENT_ID_TYPE_FIGI',
+    idType: InstrumentIdType,
     id: string,
-  ): Promise<TbankInstrument | null> {
+  ): Promise<null | TbankInstrument> {
     try {
       const response = await this.call<{ instrument?: TbankInstrument }>(
         token,
@@ -462,18 +516,26 @@ export class TbankClient {
     request: object,
   ): Promise<Response> {
     const metadataCall = method === 'getInstrumentBy';
-    const maxAttempts = metadataCall ? METADATA_MAX_ATTEMPTS : RPC_MAX_ATTEMPTS;
-    for (let attempts = 1; attempts <= maxAttempts; attempts += 1) {
+    for (let attempts = FIRST_ATTEMPT; attempts <= RPC_MAX_ATTEMPTS; attempts += ATTEMPT_INCREMENT) {
       const startedAt = performance.now();
       const queueFull = this.queue.size >= MAX_QUEUE_SIZE;
+      const diagnostics: RpcDiagnostics = {};
       try {
-        if (queueFull)
-          throw new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' });
-        const response = await this.queue.run(() =>
-          this.request<Response>(token, client, method, request),
-        );
+        if (queueFull) {
+          throw new ServiceUnavailableException({ code: TbankErrorCode.Unavailable });
+        }
+        const response = await this.queue.run(() => {
+          const sentAt = performance.now();
+          diagnostics.queueWaitMs = Math.round(sentAt - startedAt);
+          return this.request<Response>(
+            token, client, method, request, diagnostics,
+          ).finally(() => {
+            diagnostics.networkMs = Math.round(performance.now() - sentAt);
+          });
+        });
         this.logger.event('debug', 'tbank.rpc.completed', {
           operation: method,
+          ...diagnostics,
           attempts,
           durationMs: Math.round(performance.now() - startedAt),
         });
@@ -481,52 +543,47 @@ export class TbankClient {
       } catch (error) {
         const grpcCode = (error as ServiceError).code;
         const failureContext = queueFull
-          ? { code: 'TBANK_UNAVAILABLE' }
+          ? { code: TbankErrorCode.Unavailable }
           : { grpcCode };
-        const retryable = queueFull
-          ? metadataCall
-          : [
-              status.UNAVAILABLE,
-              status.DEADLINE_EXCEEDED,
-              status.RESOURCE_EXHAUSTED,
-            ].includes(grpcCode);
-        if (retryable && attempts < maxAttempts) {
+        const retryable = !queueFull && [
+          status.DEADLINE_EXCEEDED,
+          status.RESOURCE_EXHAUSTED,
+          status.UNAVAILABLE,
+        ].includes(grpcCode);
+        if (retryable && attempts < RPC_MAX_ATTEMPTS) {
           this.logger.event('warn', 'tbank.rpc.retry', {
             operation: method,
+            ...diagnostics,
             ...failureContext,
             attempts,
             durationMs: Math.round(performance.now() - startedAt),
           });
-          await new Promise((resolve) =>
-            setTimeout(
-              resolve,
-              metadataCall
-                ? attempts * METADATA_RETRY_DELAY_MS
-                : RPC_RETRY_DELAY_MS,
-            ),
-          );
+          await new Promise((resolve) => setTimeout(resolve, RPC_RETRY_DELAY_MS));
           continue;
         }
         this.logger.event('error', 'tbank.rpc.failed', {
           operation: method,
+          ...diagnostics,
           ...failureContext,
-          attempts: queueFull && !metadataCall ? 0 : attempts,
+          attempts: queueFull ? NO_RPC_ATTEMPTS : attempts,
           durationMs: Math.round(performance.now() - startedAt),
         });
         if (
-          [status.UNAUTHENTICATED, status.PERMISSION_DENIED].includes(grpcCode)
-        )
+          [status.PERMISSION_DENIED, status.UNAUTHENTICATED].includes(grpcCode)
+        ) {
           // eslint-disable-next-line preserve-caught-error -- Discard raw upstream authentication errors at the integration boundary.
-          throw new Error('INVALID_TBANK_TOKEN');
+          throw new Error(TbankErrorCode.InvalidToken);
+        }
         if (
           grpcCode === status.NOT_FOUND &&
           (method === 'shareBy' || metadataCall)
-        )
+        ) {
           throw new NotFoundException();
-        throw new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' });
+        }
+        throw new ServiceUnavailableException({ code: TbankErrorCode.Unavailable });
       }
     }
-    throw new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' });
+    throw new ServiceUnavailableException({ code: TbankErrorCode.Unavailable });
   }
 
   private request<Response>(
@@ -534,20 +591,49 @@ export class TbankClient {
     client: TbankClientService,
     method: string,
     request: object,
+    diagnostics?: RpcDiagnostics,
   ): Promise<Response> {
     return new Promise((resolve, reject) => {
       const metadata = new Metadata();
       metadata.set('Authorization', `Bearer ${token}`);
-      client[method](
+      // A channel state is a snapshot, not proof that this particular call reached the server.
+      const channel = diagnostics && client.getChannel();
+      if (diagnostics) diagnostics.headersReceived = false;
+      // eslint-disable-next-line security/detect-object-injection -- Service and method names are internal RPC selections, not request input.
+      const call = client[method](
         request as never,
         metadata,
         { deadline: new Date(Date.now() + requestDeadlineMs) },
-        (error, response) => (error ? reject(error) : resolve(response)),
+        (error, response) => {
+          if (diagnostics && channel) {
+            diagnostics.channelState = connectivityState[
+              channel.getConnectivityState(false)
+            ];
+          }
+          if (error) reject(error);
+          else resolve(response);
+        },
       );
+      if (diagnostics) {
+        call.on('metadata', (headers: Metadata) => {
+          diagnostics.headersReceived = true;
+          const trackingId = headers.get('x-tracking-id')[0];
+          // Only a UUID may enter logs; never forward arbitrary upstream metadata.
+          if (
+            typeof trackingId === 'string' &&
+            /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i.test(trackingId)
+          ) {
+            diagnostics.trackingId = trackingId;
+          }
+        });
+      }
     });
   }
 }
 
-function utcSeconds(date: string): number {
-  return Math.floor(Date.parse(`${date}T00:00:00Z`) / MILLISECONDS_PER_SECOND);
+// Calendar owners supply inclusive UTC days; RPC timestamps use [from, next(to)).
+function utcSeconds(date: string, nextDay = false): number {
+  const instant = new Date(`${date}T00:00:00Z`);
+  if (nextDay) instant.setUTCDate(instant.getUTCDate() + NEXT_DAY_OFFSET);
+  return Math.floor(instant.valueOf() / MILLISECONDS_PER_SECOND);
 }

src/integrations/tbank/tbank.crypto.ts

@@ -1,5 +1,7 @@
 import { createCipheriv, createDecipheriv, randomBytes } from 'node:crypto';
 
+const VERSION_SIZE_BYTES = 1;
+
 const KEY_SIZE_BYTES = 32;
 
 const VERSION = 1;
@@ -11,8 +13,9 @@ export class TbankCrypto {
 
   static fromBase64(key: string): TbankCrypto {
     const decoded = Buffer.from(key, 'base64');
-    if (decoded.length !== KEY_SIZE_BYTES)
+    if (decoded.length !== KEY_SIZE_BYTES) {
       throw new Error('Invalid token encryption key');
+    }
     return new TbankCrypto(decoded);
   }
 
@@ -33,15 +36,15 @@ export class TbankCrypto {
 
   decrypt(payload: string): string {
     const bytes = Buffer.from(payload, 'base64');
-    if (bytes[0] !== VERSION || bytes.length < 1 + NONCE_SIZE + TAG_SIZE) {
+    if (bytes[0] !== VERSION || bytes.length < VERSION_SIZE_BYTES + NONCE_SIZE + TAG_SIZE) {
       throw new Error('Invalid encrypted token');
     }
-    const nonce = bytes.subarray(1, 1 + NONCE_SIZE);
+    const nonce = bytes.subarray(VERSION_SIZE_BYTES, VERSION_SIZE_BYTES + NONCE_SIZE);
     const tag = bytes.subarray(-TAG_SIZE);
     const decipher = createDecipheriv('aes-256-gcm', this.key, nonce);
     decipher.setAuthTag(tag);
     return Buffer.concat([
-      decipher.update(bytes.subarray(1 + NONCE_SIZE, -TAG_SIZE)),
+      decipher.update(bytes.subarray(VERSION_SIZE_BYTES + NONCE_SIZE, -TAG_SIZE)),
       decipher.final(),
     ]).toString('utf8');
   }

src/integrations/tbank/tbank.module.ts

@@ -1,6 +1,9 @@
 import { Module } from '@nestjs/common';
+
+import { InstrumentMetadataRepository } from './instrument-metadata.repository';
 import { InstrumentMetadataService } from './instrument-metadata.service';
 import { TbankAccessService } from './tbank-access.service';
+import { TbankMembershipService } from './tbank-membership.service';
 import { TbankTokenService } from './tbank-token.service';
 import { TbankClient } from './tbank.client';
 
@@ -9,12 +12,15 @@ import { TbankClient } from './tbank.client';
     TbankClient,
     TbankTokenService,
     TbankAccessService,
+    TbankMembershipService,
     InstrumentMetadataService,
+    InstrumentMetadataRepository,
   ],
   exports: [
     TbankClient,
     TbankTokenService,
     TbankAccessService,
+    TbankMembershipService,
     InstrumentMetadataService,
   ],
 })

src/main.ts

@@ -1,16 +1,20 @@
-import { INestApplication, ValidationPipe } from '@nestjs/common';
-import { NestFactory } from '@nestjs/core';
-import cookieParser from 'cookie-parser';
+import {
+  BadRequestException,
+  INestApplication,
+  ValidationPipe,
+} from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
+import { NestFactory } from '@nestjs/core';
 import { SwaggerModule } from '@nestjs/swagger';
-import { API_PREFIX, createOpenApiDocument } from './openapi';
+import cookieParser from 'cookie-parser';
 import { Logger } from 'nestjs-pino';
+
 import { AppModule } from './app.module';
 import { HttpExceptionFilter } from './common/filters/http-exception.filter';
-import { RequestLoggingMiddleware } from './common/logging/request-logging.middleware';
 import { StructuredLogger } from './common/logging/structured-logger.service';
 import { Environment } from './config/env.validation';
 import { shouldExposeSwagger } from './config/swagger.config';
+import { API_PREFIX, createOpenApiDocument } from './openapi';
 
 export function configureApp(app: INestApplication): void {
   const config = app.get<ConfigService<Environment, true>>(ConfigService);
@@ -24,10 +28,16 @@ export function configureApp(app: INestApplication): void {
   });
   app.setGlobalPrefix(API_PREFIX);
   app.use(cookieParser());
-  const requestLogging = app.get(RequestLoggingMiddleware);
-  app.use(requestLogging.use.bind(requestLogging));
-  app.useGlobalPipes(new ValidationPipe({ transform: true, whitelist: true }));
-  app.useGlobalFilters(new HttpExceptionFilter());
+  app.useGlobalPipes(
+    new ValidationPipe({
+      forbidUnknownValues: true,
+      transform: true,
+      whitelist: true,
+      validationError: { target: false, value: false },
+      exceptionFactory: (message) => new BadRequestException({ message }),
+    }),
+  );
+  app.useGlobalFilters(new HttpExceptionFilter(app.get(StructuredLogger)));
   app.enableShutdownHooks();
 }
 

src/modules/auth/application/auth-error-code.ts

@@ -0,0 +1,4 @@
+export enum AuthErrorCode {
+  EmailAlreadyRegistered = 'EMAIL_ALREADY_REGISTERED',
+  InvalidCredentials = 'INVALID_CREDENTIALS',
+}

src/modules/auth/application/auth.service.spec.ts

@@ -114,8 +114,8 @@ describe('AuthService', () => {
         where,
         data,
       }: {
-        where: { id?: string; refreshTokenHash?: string };
         data: { refreshTokenHash: string };
+        where: { id?: string; refreshTokenHash?: string };
       }) => {
         if (where.id === session.id && where.refreshTokenHash === currentHash) {
           currentHash = data.refreshTokenHash;

src/modules/auth/application/auth.service.ts

@@ -6,16 +6,23 @@ import {
 import { JwtService } from '@nestjs/jwt';
 import * as bcrypt from 'bcrypt';
 import { createHash, randomUUID } from 'crypto';
+
 import { Session, User } from '../../../../generated/prisma/client';
+import { HttpErrorCode } from '../../../common/error-code';
+import { isPrismaErrorCode, PrismaErrorCode } from '../../../prisma/prisma-error-code';
 import { PrismaService } from '../../../prisma/prisma.service';
-import { AuthUser, RefreshPayload } from './auth.types';
+import { AuthErrorCode } from './auth-error-code';
+import { AuthenticationResult, AuthUser, RefreshPayload } from './auth.types';
+
+const EXPECTED_ROTATED_SESSIONS = 1;
 
 const PASSWORD_HASH_ROUNDS = 12;
-const REFRESH_TTL_MS = 604_800_000;
+export const REFRESH_TTL_MS = 604_800_000;
 
 const ACCESS_TTL = '15m';
 const REFRESH_TTL = '7d';
 const DUMMY_PASSWORD_HASH =
+  // eslint-disable-next-line sonarjs/no-hardcoded-passwords -- Public dummy bcrypt hash preserves login timing for nonexistent users; it is not a credential.
   '$2b$12$Z49BwJsyiUqY0ZozFzt9IeYvjhV4kbeLw9KdxOguT5bfhA1RvPCx6';
 
 @Injectable()
@@ -28,26 +35,27 @@ export class AuthService {
   async register(
     email: string,
     password: string,
-  ): Promise<{ user: AuthUser; accessToken: string; refreshToken: string }> {
-    const normalizedEmail = this.normalizeEmail(email);
+  ): Promise<AuthenticationResult> {
     const existing = await this.prisma.user.findUnique({
-      where: { email: normalizedEmail },
+      where: { email },
     });
-    if (existing)
-      throw new ConflictException({ code: 'EMAIL_ALREADY_REGISTERED' });
+    if (existing) {
+      throw new ConflictException({ code: AuthErrorCode.EmailAlreadyRegistered });
+    }
 
     let user: User;
     try {
       user = await this.prisma.user.create({
         data: {
           id: randomUUID(),
-          email: normalizedEmail,
+          email,
           passwordHash: await bcrypt.hash(password, PASSWORD_HASH_ROUNDS),
         },
       });
     } catch (error) {
-      if (isUniqueConstraintError(error))
-        throw new ConflictException({ code: 'EMAIL_ALREADY_REGISTERED' });
+      if (isUniqueConstraintError(error)) {
+        throw new ConflictException({ code: AuthErrorCode.EmailAlreadyRegistered });
+      }
       throw error;
     }
     return this.createSession(user);
@@ -56,32 +64,34 @@ export class AuthService {
   async login(
     email: string,
     password: string,
-  ): Promise<{ user: AuthUser; accessToken: string; refreshToken: string }> {
+  ): Promise<AuthenticationResult> {
     const user = await this.prisma.user.findUnique({
-      where: { email: this.normalizeEmail(email) },
+      where: { email },
     });
     const valid = await bcrypt.compare(
       password,
       user?.passwordHash ?? DUMMY_PASSWORD_HASH,
     );
-    if (!user || !valid)
-      throw new UnauthorizedException({ code: 'INVALID_CREDENTIALS' });
+    if (!user || !valid) {
+      throw new UnauthorizedException({ code: AuthErrorCode.InvalidCredentials });
+    }
     return this.createSession(user);
   }
 
   async refresh(
     token: string,
-  ): Promise<{ user: AuthUser; accessToken: string; refreshToken: string }> {
+  ): Promise<AuthenticationResult> {
     let payload: RefreshPayload;
     try {
       payload = await this.jwt.verifyAsync<RefreshPayload>(token, {
         algorithms: ['HS256'],
       });
     } catch {
-      throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
+      throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
+    }
+    if (payload.type !== 'refresh') {
+      throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     }
-    if (payload.type !== 'refresh')
-      throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
     const session = await this.prisma.session.findUnique({
       where: { id: payload.sid },
       include: { user: true },
@@ -92,37 +102,40 @@ export class AuthService {
       session.revokedAt ||
       session.expiresAt <= new Date()
     ) {
-      if (session && !session.revokedAt)
+      if (session && !session.revokedAt) {
         await this.prisma.session.delete({ where: { id: session.id } });
-      throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
+      }
+      throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
+    }
+    if (session.refreshTokenHash !== this.hash(token)) {
+      throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     }
-    if (session.refreshTokenHash !== this.hash(token))
-      throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
     return this.rotateSession(session, session.refreshTokenHash);
   }
 
   async logout(token?: string): Promise<void> {
     if (!token) return;
+    let payload: RefreshPayload;
     try {
-      const payload = await this.jwt.verifyAsync<RefreshPayload>(token, {
+      payload = await this.jwt.verifyAsync<RefreshPayload>(token, {
         algorithms: ['HS256'],
       });
-      if (payload.type !== 'refresh') return;
-      const session = await this.prisma.session.findUnique({
-        where: { id: payload.sid },
-      });
-      if (
-        session &&
-        !session.revokedAt &&
-        session.refreshTokenHash === this.hash(token)
-      ) {
-        await this.prisma.session.update({
-          where: { id: session.id },
-          data: { revokedAt: new Date() },
-        });
-      }
     } catch {
-      // Logout is intentionally idempotent.
+      return;
+    }
+    if (payload.type !== 'refresh') return;
+    const session = await this.prisma.session.findUnique({
+      where: { id: payload.sid },
+    });
+    if (
+      session &&
+      !session.revokedAt &&
+      session.refreshTokenHash === this.hash(token)
+    ) {
+      await this.prisma.session.update({
+        where: { id: session.id },
+        data: { revokedAt: new Date() },
+      });
     }
   }
 
@@ -132,13 +145,13 @@ export class AuthService {
 
   async userById(id: string): Promise<User> {
     const user = await this.prisma.user.findUnique({ where: { id } });
-    if (!user) throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
+    if (!user) throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     return user;
   }
 
   private async createSession(
     user: User,
-  ): Promise<{ user: AuthUser; accessToken: string; refreshToken: string }> {
+  ): Promise<AuthenticationResult> {
     const session = await this.prisma.session.create({
       data: {
         id: randomUUID(),
@@ -153,7 +166,7 @@ export class AuthService {
   private async rotateSession(
     session: Session & { user: User },
     expectedRefreshTokenHash?: string,
-  ): Promise<{ user: AuthUser; accessToken: string; refreshToken: string }> {
+  ): Promise<AuthenticationResult> {
     const refreshToken = await this.jwt.signAsync(
       {
         sub: session.userId,
@@ -172,8 +185,9 @@ export class AuthService {
         where: { id: session.id, refreshTokenHash: expectedRefreshTokenHash },
         data,
       });
-      if (updated.count !== 1)
-        throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
+      if (updated.count !== EXPECTED_ROTATED_SESSIONS) {
+        throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
+      }
     } else {
       await this.prisma.session.update({ where: { id: session.id }, data });
     }
@@ -187,10 +201,6 @@ export class AuthService {
     };
   }
 
-  private normalizeEmail(email: string): string {
-    return email;
-  }
-
   private hash(token: string): string {
     return createHash('sha256').update(token).digest('hex');
   }
@@ -201,6 +211,6 @@ function isUniqueConstraintError(error: unknown): boolean {
     typeof error === 'object' &&
     error !== null &&
     'code' in error &&
-    (error as { code?: unknown }).code === 'P2002'
+    isPrismaErrorCode(error.code, PrismaErrorCode.UniqueConstraint)
   );
 }

src/modules/auth/application/auth.types.ts

@@ -1,17 +1,23 @@
 export interface AuthUser {
-  id: string;
   email: string;
+  id: string;
 }
 
+export type AuthenticationResult = {
+  accessToken: string;
+  refreshToken: string;
+  user: AuthUser;
+};
+
 export interface AccessPayload {
-  sub: string;
   sid: string;
+  sub: string;
   type: 'access';
 }
 
 export interface RefreshPayload {
-  sub: string;
-  sid: string;
-  type: 'refresh';
   jti: string;
+  sid: string;
+  sub: string;
+  type: 'refresh';
 }

src/modules/auth/auth.module.ts

@@ -2,11 +2,12 @@ import { Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { JwtModule } from '@nestjs/jwt';
 import { PassportModule } from '@nestjs/passport';
+
 import { Environment } from '../../config/env.validation';
-import { AuthController } from './presentation/auth.controller';
 import { AuthService } from './application/auth.service';
-import { JwtAuthGuard } from './presentation/jwt-auth.guard';
 import { JwtStrategy } from './infrastructure/jwt.strategy';
+import { AuthController } from './presentation/auth.controller';
+import { JwtAuthGuard } from './presentation/jwt-auth.guard';
 
 @Module({
   imports: [

src/modules/auth/infrastructure/jwt.strategy.ts

@@ -2,6 +2,8 @@ import { Injectable, UnauthorizedException } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { PassportStrategy } from '@nestjs/passport';
 import { ExtractJwt, Strategy } from 'passport-jwt';
+
+import { HttpErrorCode } from '../../../common/error-code';
 import { Environment } from '../../../config/env.validation';
 import { AccessPayload } from '../application/auth.types';
 
@@ -17,8 +19,9 @@ export class JwtStrategy extends PassportStrategy(Strategy) {
   }
 
   validate(payload: AccessPayload): AccessPayload {
-    if (payload.type !== 'access')
-      throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
+    if (payload.type !== 'access') {
+      throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
+    }
     return payload;
   }
 }

src/modules/auth/presentation/auth.controller.spec.ts

@@ -1,21 +0,0 @@
-import { HTTP_CODE_METADATA } from '@nestjs/common/constants';
-
-jest.mock('../application/auth.service', () => ({
-  AuthService: class AuthService {},
-}));
-
-import { AuthController } from './auth.controller';
-
-describe('AuthController response statuses', () => {
-  it.each(['register', 'login', 'refresh'] as const)(
-    '%s explicitly returns HTTP 200',
-    (handler) => {
-      // Nest stores @HttpCode metadata on the unbound handler function.
-      const handlerTarget = Object.getOwnPropertyDescriptor(
-        AuthController.prototype,
-        handler,
-      )?.value as object;
-      expect(Reflect.getMetadata(HTTP_CODE_METADATA, handlerTarget)).toBe(200);
-    },
-  );
-});

src/modules/auth/presentation/auth.controller.ts

@@ -1,3 +1,5 @@
+import type { Request, Response } from 'express';
+
 import {
   Body,
   Controller,
@@ -17,11 +19,12 @@ import {
   ApiProperty,
   ApiTags,
 } from '@nestjs/swagger';
-import type { Request, Response } from 'express';
+
 import { ApiProblemResponses } from '../../../common/decorators/api-safe-error-response.decorator';
-import { CredentialsDto } from './auth.dto';
-import { AuthService } from '../application/auth.service';
-import { AccessPayload } from '../application/auth.types';
+import { HttpErrorCode } from '../../../common/error-code';
+import { AuthService, REFRESH_TTL_MS } from '../application/auth.service';
+import { AccessPayload, AuthenticationResult } from '../application/auth.types';
+import { LoginDto, RegisterDto } from './auth.dto';
 import { JwtAuthGuard } from './jwt-auth.guard';
 
 const REFRESH_COOKIE = 'refresh_token';
@@ -53,7 +56,7 @@ export class AuthController {
   @HttpCode(HttpStatus.OK)
   @ApiOkResponse({ type: AuthenticationDto })
   async register(
-    @Body() credentials: CredentialsDto,
+    @Body() credentials: RegisterDto,
     @Res({ passthrough: true }) response: Response,
   ) {
     return this.respond(
@@ -66,7 +69,7 @@ export class AuthController {
   @HttpCode(HttpStatus.OK)
   @ApiOkResponse({ type: AuthenticationDto })
   async login(
-    @Body() credentials: CredentialsDto,
+    @Body() credentials: LoginDto,
     @Res({ passthrough: true }) response: Response,
   ) {
     return this.respond(
@@ -82,14 +85,9 @@ export class AuthController {
     @Req() request: Request,
     @Res({ passthrough: true }) response: Response,
   ) {
-    try {
-      const token = this.refreshToken(request);
-      if (!token) throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
-      return this.respond(response, await this.auth.refresh(token));
-    } catch (error) {
-      this.clearCookie(response);
-      throw error;
-    }
+    const token = this.refreshToken(request);
+    if (!token) throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
+    return this.respond(response, await this.auth.refresh(token));
   }
 
   @Post('logout')
@@ -114,11 +112,7 @@ export class AuthController {
 
   private respond(
     response: Response,
-    result: {
-      user: { id: string; email: string };
-      accessToken: string;
-      refreshToken: string;
-    },
+    result: AuthenticationResult,
   ) {
     response.cookie(REFRESH_COOKIE, result.refreshToken, this.cookieOptions());
     return { user: result.user, accessToken: result.accessToken };
@@ -129,6 +123,7 @@ export class AuthController {
   }
 
   private refreshToken(request: Request): string | undefined {
+    // eslint-disable-next-line security/detect-object-injection -- The cookie name is a fixed application constant; its value is narrowed below.
     const token: unknown = request.cookies?.[REFRESH_COOKIE];
     return typeof token === 'string' ? token : undefined;
   }
@@ -139,6 +134,7 @@ export class AuthController {
       sameSite: 'lax' as const,
       secure: process.env['NODE_ENV'] !== 'development',
       path: COOKIE_PATH,
+      maxAge: REFRESH_TTL_MS,
     };
   }
 }

src/modules/auth/presentation/auth.dto.ts

@@ -1,17 +1,23 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { Transform } from 'class-transformer';
 import {
+  IsNotEmpty,
   IsString,
-  MinLength,
+  Matches,
   Validate,
   ValidatorConstraint,
 } from 'class-validator';
 
+const EMAIL_PART_COUNT = 2;
+const FIRST_CHARACTER_INDEX = 0;
+
 const MAX_EMAIL_LENGTH = 254;
 const ASCII_SPACE = 32;
 const ASCII_DELETE = 127;
-const MIN_PASSWORD_LENGTH = 12;
+// bcrypt reads at most 72 bytes; printable ASCII keeps characters == bytes.
+const MIN_PASSWORD_LENGTH = 8;
 const MAX_PASSWORD_BYTES = 72;
+const PASSWORD_PATTERN = `^[\\x20-\\x7E]{${MIN_PASSWORD_LENGTH},${MAX_PASSWORD_BYTES}}$`;
 
 @ValidatorConstraint({ name: 'email' })
 class EmailConstraint {
@@ -19,37 +25,40 @@ class EmailConstraint {
     return (
       typeof value === 'string' &&
       value.length <= MAX_EMAIL_LENGTH &&
-      value.split('@').length === 2 &&
+      value.split('@').length === EMAIL_PART_COUNT &&
       !value
         .split('')
         .some(
           (character) =>
             /\s/.test(character) ||
-            character.charCodeAt(0) < ASCII_SPACE ||
-            character.charCodeAt(0) === ASCII_DELETE,
+            character.charCodeAt(FIRST_CHARACTER_INDEX) < ASCII_SPACE ||
+            character.charCodeAt(FIRST_CHARACTER_INDEX) === ASCII_DELETE,
         ) &&
-      value.split('@').every(Boolean)
+        value.split('@').every(Boolean)
     );
   }
+
   defaultMessage(): string {
     return 'must be a valid email address';
   }
 }
 
-@ValidatorConstraint({ name: 'passwordBytes' })
-class PasswordBytesConstraint {
+// Login stays lenient: accounts created under an older policy must still sign in.
+@ValidatorConstraint({ name: 'passwordMaxBytes' })
+class PasswordMaxBytesConstraint {
   validate(value: unknown): boolean {
     return (
       typeof value === 'string' &&
       Buffer.byteLength(value, 'utf8') <= MAX_PASSWORD_BYTES
     );
   }
+
   defaultMessage(): string {
-    return 'must not exceed 72 UTF-8 bytes';
+    return `must not exceed ${MAX_PASSWORD_BYTES} UTF-8 bytes`;
   }
 }
 
-export class CredentialsDto {
+class EmailDto {
   @ApiProperty({ example: 'user@example.com' })
   @IsString()
   @Transform(({ value }: { value: unknown }) =>
@@ -57,14 +66,28 @@ export class CredentialsDto {
   )
   @Validate(EmailConstraint)
   declare email: string;
+}
 
+export class RegisterDto extends EmailDto {
   @ApiProperty({
-    minLength: MIN_PASSWORD_LENGTH,
-    maxLength: MAX_PASSWORD_BYTES,
+    description: `Raw password: ${MIN_PASSWORD_LENGTH}-${MAX_PASSWORD_BYTES} printable ASCII characters (letters, digits, symbols, space). Not trimmed or normalized.`,
+    pattern: PASSWORD_PATTERN,
     example: 'a secure password',
   })
   @IsString()
-  @MinLength(MIN_PASSWORD_LENGTH)
-  @Validate(PasswordBytesConstraint)
+  @Matches(new RegExp(PASSWORD_PATTERN), {
+    message: `must be ${MIN_PASSWORD_LENGTH}-${MAX_PASSWORD_BYTES} printable ASCII characters`,
+  })
+  declare password: string;
+}
+
+export class LoginDto extends EmailDto {
+  @ApiProperty({
+    description: `Raw password, at most ${MAX_PASSWORD_BYTES} UTF-8 bytes. Not trimmed or normalized.`,
+    example: 'a secure password',
+  })
+  @IsString()
+  @IsNotEmpty()
+  @Validate(PasswordMaxBytesConstraint)
   declare password: string;
 }

src/modules/auth/presentation/jwt-auth.guard.ts

@@ -1,11 +1,12 @@
 import { ExecutionContext, Injectable } from '@nestjs/common';
 import { AuthGuard } from '@nestjs/passport';
-import { RequestContextService } from '../../../common/logging/request-context.service';
+import { PinoLogger } from 'nestjs-pino';
+
 import { AccessPayload } from '../application/auth.types';
 
 @Injectable()
 export class JwtAuthGuard extends AuthGuard('jwt') {
-  constructor(private readonly requestContext: RequestContextService) {
+  constructor(private readonly logger: PinoLogger) {
     super();
   }
 
@@ -14,8 +15,9 @@ export class JwtAuthGuard extends AuthGuard('jwt') {
     const request = context
       .switchToHttp()
       .getRequest<{ user?: AccessPayload }>();
-    if (request.user?.sub)
-      this.requestContext.set({ userId: request.user.sub });
+    if (request.user?.sub) {
+      this.logger.assign({ userId: request.user.sub });
+    }
     return Boolean(allowed);
   }
 }

src/modules/banking/bank-cards/application/bank-card-input.ts

@@ -1,40 +1,44 @@
-import {
-  MAX_CARD_NAME_LENGTH,
-  MAX_OPERATION_DESCRIPTION_LENGTH,
-} from '../domain/bank-card-limits';
 import {
   BadRequestException,
   ConflictException,
   NotFoundException,
 } from '@nestjs/common';
 import { createHash } from 'node:crypto';
+
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../common/time';
+import {
+  MAX_CARD_NAME_LENGTH,
+  MAX_OPERATION_DESCRIPTION_LENGTH,
+} from '../domain/bank-card-limits';
+import { isCalendarDate, moscowToday } from '../domain/bank-card.calculations';
+import { parseRubMoney } from '../domain/rub-money';
 import {
   bankPaymentSystems,
   BankPeriodQueryDto,
   CreateBankCardDto,
   CreateBankOperationDto,
 } from '../presentation/bank-card.dto';
-import { isCalendarDate, moscowToday } from '../domain/bank-card.calculations';
-import { parseRubMoney } from '../domain/rub-money';
 
-export const BankErrorCode = {
-  InvalidInput: 'BANK_INVALID_INPUT',
-  VersionConflict: 'BANK_VERSION_CONFLICT',
-  NotFound: 'BANK_NOT_FOUND',
-  InvalidMoney: 'BANK_INVALID_MONEY',
-  InvalidDate: 'BANK_INVALID_DATE',
-  ImmutableOperation: 'BANK_IMMUTABLE_OPERATION',
-  InvalidRefund: 'BANK_INVALID_REFUND',
-  RefundLimit: 'BANK_REFUND_LIMIT',
-  DependentRefunds: 'BANK_DEPENDENT_REFUNDS',
-  IntentConflict: 'BANK_INTENT_CONFLICT',
-  OperationDeleted: 'BANK_OPERATION_DELETED',
-  CardArchived: 'BANK_CARD_ARCHIVED',
-  OpeningDateConflict: 'BANK_OPENING_DATE_CONFLICT',
-  WriteConflict: 'BANK_WRITE_CONFLICT',
-  DuplicateCategory: 'BANK_DUPLICATE_CATEGORY',
-} as const;
-export type BankErrorCode = (typeof BankErrorCode)[keyof typeof BankErrorCode];
+const NEXT_MONTH_OFFSET = 1;
+const PREVIOUS_MONTH_LAST_DAY = 0;
+
+export enum BankErrorCode {
+  CardArchived = 'BANK_CARD_ARCHIVED',
+  DependentRefunds = 'BANK_DEPENDENT_REFUNDS',
+  DuplicateCategory = 'BANK_DUPLICATE_CATEGORY',
+  ImmutableOperation = 'BANK_IMMUTABLE_OPERATION',
+  IntentConflict = 'BANK_INTENT_CONFLICT',
+  InvalidDate = 'BANK_INVALID_DATE',
+  InvalidInput = 'BANK_INVALID_INPUT',
+  InvalidMoney = 'BANK_INVALID_MONEY',
+  InvalidRefund = 'BANK_INVALID_REFUND',
+  NotFound = 'BANK_NOT_FOUND',
+  OpeningDateConflict = 'BANK_OPENING_DATE_CONFLICT',
+  OperationDeleted = 'BANK_OPERATION_DELETED',
+  RefundLimit = 'BANK_REFUND_LIMIT',
+  VersionConflict = 'BANK_VERSION_CONFLICT',
+  WriteConflict = 'BANK_WRITE_CONFLICT',
+}
 
 export function fail(code: BankErrorCode = BankErrorCode.InvalidInput): never {
   throw new BadRequestException({ code });
@@ -44,8 +48,8 @@ export function periodBounds(query: BankPeriodQueryDto) {
     const from = `${query.month}-01`;
     if (!isCalendarDate(from)) return fail();
     const end = new Date(`${from}T00:00:00Z`);
-    end.setUTCMonth(end.getUTCMonth() + 1, 0);
-    return { from, to: end.toISOString().slice(0, 10) };
+    end.setUTCMonth(end.getUTCMonth() + NEXT_MONTH_OFFSET, PREVIOUS_MONTH_LAST_DAY);
+    return { from, to: end.toISOString().slice(ISO_DATE_START, ISO_DATE_LENGTH) };
   }
   if (
     query.month ||
@@ -54,8 +58,9 @@ export function periodBounds(query: BankPeriodQueryDto) {
     !isCalendarDate(query.from) ||
     !isCalendarDate(query.to) ||
     query.from > query.to
-  )
+  ) {
     return fail();
+  }
   return { from: query.from, to: query.to };
 }
 export function conflict(
@@ -93,8 +98,9 @@ export function currentDate(value: string) {
   if (value > moscowToday()) fail(BankErrorCode.InvalidDate);
 }
 export function name(value: string, max: number) {
-  if (typeof value !== 'string' || !value.trim() || value.trim().length > max)
+  if (typeof value !== 'string' || !value.trim() || value.trim().length > max) {
     fail();
+  }
   return value.trim();
 }
 export function cardInput(dto: CreateBankCardDto) {
@@ -104,8 +110,9 @@ export function cardInput(dto: CreateBankCardDto) {
   if (
     dto.paymentSystem != null &&
     !bankPaymentSystems.some((system) => system === dto.paymentSystem)
-  )
+  ) {
     fail();
+  }
   return {
     ...(dto.paymentSystem == null ? {} : { paymentSystem: dto.paymentSystem }),
     name: name(dto.name, MAX_CARD_NAME_LENGTH),
@@ -120,8 +127,9 @@ export function operationInput(dto: CreateBankOperationDto) {
     dto.description != null &&
     (typeof dto.description !== 'string' ||
       dto.description.length > MAX_OPERATION_DESCRIPTION_LENGTH)
-  )
+  ) {
     fail();
+  }
   return {
     kind: dto.kind,
     cardId: dto.cardId,

src/modules/banking/bank-cards/application/bank-cards.service.ts

@@ -1,24 +1,27 @@
 import { Injectable } from '@nestjs/common';
+
 import { BankCard, Prisma } from '../../../../../generated/prisma/client';
 import { PrismaService } from '../../../../prisma/prisma.service';
+import { bankBalance } from '../domain/bank-card.calculations';
+import { rubMoney } from '../domain/rub-money';
+import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
 import {
   BankCardDto,
   CreateBankCardDto,
   UpdateBankCardDto,
 } from '../presentation/bank-card.dto';
-import { bankBalance } from '../domain/bank-card.calculations';
-import { rubMoney } from '../domain/rub-money';
-
 import {
-  cardInput,
   BankErrorCode,
+  cardInput,
   conflict,
   currentDate,
   fail,
   fingerprint,
   missing,
 } from './bank-card-input';
-import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
+
+const EXPECTED_UPDATED_CARDS = 1;
+
 type Tx = Prisma.TransactionClient;
 @Injectable()
 export class BankCardsService {
@@ -26,6 +29,7 @@ export class BankCardsService {
     private readonly prisma: PrismaService,
     private readonly repository: BankCardsRepository,
   ) {}
+
   private async cardView(tx: Tx, card: BankCard): Promise<BankCardDto> {
     const rows = await tx.bankCardOperation.findMany({
       where: {
@@ -47,6 +51,7 @@ export class BankCardsService {
       archivedAt: card.archivedAt?.toISOString() ?? null,
     };
   }
+
   list(userId: string, includeArchived = false) {
     return this.prisma.$transaction(async (tx) =>
       Promise.all(
@@ -59,11 +64,13 @@ export class BankCardsService {
       ),
     );
   }
+
   get(userId: string, id: string) {
     return this.prisma.$transaction(async (tx) =>
       this.cardView(tx, await this.repository.card(tx, userId, id)),
     );
   }
+
   createCard(userId: string, dto: CreateBankCardDto) {
     const input = cardInput(dto),
       hash = fingerprint(input);
@@ -71,8 +78,10 @@ export class BankCardsService {
       const existing = await tx.bankCard.findUnique({ where: { id: dto.id } });
       if (existing) {
         if (existing.userId !== userId) missing();
-        if (existing.createFingerprint !== hash)
+        // eslint-disable-next-line security/detect-possible-timing-attacks -- This compares an idempotency fingerprint after ownership validation, not a secret.
+        if (existing.createFingerprint !== hash) {
           conflict(BankErrorCode.IntentConflict);
+        }
         return this.cardView(tx, existing);
       }
       currentDate(input.openingDate);
@@ -85,6 +94,7 @@ export class BankCardsService {
       );
     });
   }
+
   updateCard(userId: string, id: string, dto: UpdateBankCardDto) {
     return this.repository.write(async (tx) => {
       const previous = await this.repository.card(tx, userId, id);
@@ -93,13 +103,9 @@ export class BankCardsService {
         id,
         name: dto.name ?? previous.name,
         bankName:
-          dto.bankName === undefined
-            ? (previous.bankName ?? undefined)
-            : (dto.bankName ?? undefined),
+          dto.bankName === undefined ? previous.bankName : dto.bankName,
         lastFour:
-          dto.lastFour === undefined
-            ? (previous.lastFour ?? undefined)
-            : (dto.lastFour ?? undefined),
+          dto.lastFour === undefined ? previous.lastFour : dto.lastFour,
         paymentSystem:
           dto.paymentSystem === undefined
             ? previous.paymentSystem
@@ -111,8 +117,9 @@ export class BankCardsService {
       const financial =
         input.openingBalanceKopecks !== previous.openingBalanceKopecks ||
         input.openingDate !== previous.openingDate;
-      if (financial && previous.archivedAt)
+      if (financial && previous.archivedAt) {
         conflict(BankErrorCode.CardArchived);
+      }
       currentDate(input.openingDate);
       if (
         await tx.bankCardOperation.findFirst({
@@ -123,8 +130,9 @@ export class BankCardsService {
             OR: [{ cardId: id }, { targetCardId: id }],
           },
         })
-      )
+      ) {
         fail(BankErrorCode.OpeningDateConflict);
+      }
       const changed = await tx.bankCard.updateMany({
         where: { id, userId, version: dto.version },
         data: {
@@ -140,7 +148,7 @@ export class BankCardsService {
               }),
         },
       });
-      if (changed.count !== 1) conflict();
+      if (changed.count !== EXPECTED_UPDATED_CARDS) conflict();
       return this.cardView(tx, await this.repository.card(tx, userId, id));
     });
   }

src/modules/banking/bank-cards/application/bank-operations.service.ts

@@ -1,20 +1,22 @@
-import { BankOperationKind } from '../domain/bank-operation-kind';
 import { GoneException, Injectable } from '@nestjs/common';
+
 import {
   BankCardOperation,
   Prisma,
 } from '../../../../../generated/prisma/client';
 import { PrismaService } from '../../../../prisma/prisma.service';
+import { FIRST_PAGE } from '../domain/bank-card-limits';
+import { BankOperationKind } from '../domain/bank-operation-kind';
+import { rubMoney, ZERO_KOPECKS } from '../domain/rub-money';
+import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
 import {
   BankOperationDto,
-  DEFAULT_BANK_PAGE_SIZE,
   BankOperationsQueryDto,
   BankPageQueryDto,
   CreateBankOperationDto,
+  DEFAULT_BANK_PAGE_SIZE,
   UpdateBankOperationDto,
 } from '../presentation/bank-card.dto';
-import { rubMoney } from '../domain/rub-money';
-
 import {
   BankErrorCode,
   conflict,
@@ -25,7 +27,9 @@ import {
   operationInput,
   periodBounds,
 } from './bank-card-input';
-import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
+
+const EXPECTED_UPDATED_ROWS = 1;
+
 type Tx = Prisma.TransactionClient;
 @Injectable()
 export class BankOperationsService {
@@ -33,6 +37,7 @@ export class BankOperationsService {
     private readonly prisma: PrismaService,
     private readonly repository: BankCardsRepository,
   ) {}
+
   private async operationView(
     tx: Tx,
     row: BankCardOperation,
@@ -76,7 +81,7 @@ export class BankOperationsService {
         row.kind === BankOperationKind.Expense || source
           ? rubMoney(
               (source?.amountKopecks ?? row.amountKopecks) -
-                refunds.reduce((sum, r) => sum + r.amountKopecks, 0n),
+              refunds.reduce((sum, r) => sum + r.amountKopecks, ZERO_KOPECKS),
             )
           : null,
       date: row.date,
@@ -85,6 +90,102 @@ export class BankOperationsService {
       createdAt: row.createdAt.toISOString(),
     };
   }
+
+  private async pageViews(tx: Tx, rows: BankCardOperation[]) {
+    const userId = rows[0]?.userId;
+    if (!userId) return [];
+    const cardIds = new Set(
+      rows.flatMap((row) =>
+        [row.cardId, row.targetCardId].filter(
+          (id): id is string => id !== null,
+        ),
+      ),
+    );
+    const sourceIds = new Set(
+      rows.flatMap((row) => (row.originalExpenseId ? [row.originalExpenseId] : [])),
+    );
+    const [cards, sources] = await Promise.all([
+      tx.bankCard.findMany({ where: { userId, id: { in: [...cardIds] } } }),
+      tx.bankCardOperation.findMany({
+        where: { userId, id: { in: [...sourceIds] } },
+      }),
+    ]);
+    const categoryIds = new Set(
+      rows
+        .map(
+          (row) =>
+            sources.find((source) => source.id === row.originalExpenseId)
+              ?.categoryId ?? row.categoryId,
+        )
+        .filter((id): id is string => id !== null),
+    );
+    const expenseIds = new Set(
+      rows.flatMap((row) => {
+        const source = sources.find((item) => item.id === row.originalExpenseId);
+        return row.kind === BankOperationKind.Expense || source
+          ? [source?.id ?? row.id]
+          : [];
+      }),
+    );
+    const [categories, refunds] = await Promise.all([
+      tx.expenseCategory.findMany({
+        where: { userId, id: { in: [...categoryIds] } },
+      }),
+      tx.bankCardOperation.findMany({
+        where: {
+          userId,
+          originalExpenseId: { in: [...expenseIds] },
+          deletedAt: null,
+        },
+      }),
+    ]);
+    const cardsById = new Map(cards.map((card) => [card.id, card]));
+    const sourcesById = new Map(sources.map((source) => [source.id, source]));
+    const categoriesById = new Map(categories.map((category) => [category.id, category]));
+    return rows.map((row) => {
+      const card = cardsById.get(row.cardId) as { name: string };
+      const target = row.targetCardId ? cardsById.get(row.targetCardId) : null;
+      const source = row.originalExpenseId
+        ? sourcesById.get(row.originalExpenseId)
+        : null;
+      const categoryId = source?.categoryId ?? row.categoryId;
+      const relatedRefunds =
+        row.kind === BankOperationKind.Expense || source
+          ? refunds.filter(
+              (refund) =>
+                refund.originalExpenseId === (source?.id ?? row.id) &&
+                (!source || refund.id !== row.id),
+            )
+          : [];
+      return {
+        id: row.id,
+        kind: row.kind as BankOperationDto['kind'],
+        cardId: row.cardId,
+        cardName: card.name,
+        targetCardId: row.targetCardId,
+        targetCardName: target?.name ?? null,
+        categoryId,
+        categoryName: categoriesById.get(categoryId ?? '')?.name ?? null,
+        originalExpenseId: row.originalExpenseId,
+        amount: rubMoney(row.amountKopecks),
+        availableRefund:
+          row.kind === BankOperationKind.Expense || source
+            ? rubMoney(
+                (source?.amountKopecks ?? row.amountKopecks) -
+                relatedRefunds.reduce(
+                  (sum, refund) => sum + refund.amountKopecks,
+                  ZERO_KOPECKS,
+                ),
+              )
+            : null,
+        date: row.date,
+        description: row.description,
+        version: row.version,
+        createdAt: row.createdAt.toISOString(),
+      };
+    });
+  }
+
   private async validateOperation(
     tx: Tx,
     userId: string,
@@ -102,23 +203,26 @@ export class BankOperationsService {
       if (
         (id === input.cardId || id === input.targetCardId) &&
         input.date < card.openingDate
-      )
+      ) {
         fail(BankErrorCode.InvalidDate);
+      }
     }
     if (
       old &&
       (old.kind !== input.kind ||
         old.originalExpenseId !== input.originalExpenseId)
-    )
+    ) {
       fail(BankErrorCode.ImmutableOperation);
+    }
     if (input.kind === BankOperationKind.Transfer) {
       if (
         !input.targetCardId ||
         input.targetCardId === input.cardId ||
         input.categoryId ||
         input.originalExpenseId
-      )
+      ) {
         fail();
+      }
     } else if (input.targetCardId) fail();
     if (input.kind === BankOperationKind.Expense) {
       if (input.originalExpenseId) fail();
@@ -133,11 +237,13 @@ export class BankOperationsService {
         !(await tx.expenseCategory.findFirst({
           where: { userId, id: input.categoryId },
         }))
-      )
+      ) {
         missing();
+      }
     } else if (input.categoryId) fail();
-    if (input.kind !== BankOperationKind.Refund && input.originalExpenseId)
+    if (input.kind !== BankOperationKind.Refund && input.originalExpenseId) {
       fail();
+    }
     if (input.kind === BankOperationKind.Refund) {
       if (!input.originalExpenseId) fail();
       const source = await this.repository.operation(
@@ -149,8 +255,9 @@ export class BankOperationsService {
         source.deletedAt ||
         source.kind !== BankOperationKind.Expense ||
         source.cardId !== input.cardId
-      )
+      ) {
         fail(BankErrorCode.InvalidRefund);
+      }
       if (
         (
           await tx.bankCardOperation.updateMany({
@@ -162,9 +269,10 @@ export class BankOperationsService {
             },
             data: { version: { increment: 1 } },
           })
-        ).count !== 1
-      )
+        ).count !== EXPECTED_UPDATED_ROWS
+      ) {
         conflict();
+      }
       const refunds = await tx.bankCardOperation.findMany({
         where: {
           userId,
@@ -175,11 +283,12 @@ export class BankOperationsService {
       });
       if (input.date < source.date) fail(BankErrorCode.InvalidDate);
       if (
-        refunds.reduce((sum, r) => sum + r.amountKopecks, 0n) +
-          input.amountKopecks >
+        refunds.reduce((sum, r) => sum + r.amountKopecks, ZERO_KOPECKS) +
+        input.amountKopecks >
         source.amountKopecks
-      )
+      ) {
         conflict(BankErrorCode.RefundLimit);
+      }
     }
     if (old?.kind === BankOperationKind.Expense) {
       const refunds = await tx.bankCardOperation.findMany({
@@ -189,12 +298,14 @@ export class BankOperationsService {
         refunds.length &&
         (input.cardId !== old.cardId ||
           refunds.some((row) => row.date < input.date) ||
-          refunds.reduce((sum, row) => sum + row.amountKopecks, 0n) >
-            input.amountKopecks)
-      )
+          refunds.reduce((sum, row) => sum + row.amountKopecks, ZERO_KOPECKS) >
+          input.amountKopecks)
+      ) {
         conflict(BankErrorCode.DependentRefunds);
+      }
     }
   }
+
   createOperation(userId: string, dto: CreateBankOperationDto) {
     const normalized = operationInput(dto),
       hash = fingerprint(normalized);
@@ -204,10 +315,13 @@ export class BankOperationsService {
       });
       if (existing) {
         if (existing.userId !== userId) missing();
-        if (existing.createFingerprint !== hash)
+        // eslint-disable-next-line security/detect-possible-timing-attacks -- This compares an idempotency fingerprint after ownership validation, not a secret.
+        if (existing.createFingerprint !== hash) {
           conflict(BankErrorCode.IntentConflict);
-        if (existing.deletedAt)
+        }
+        if (existing.deletedAt) {
           throw new GoneException({ code: BankErrorCode.OperationDeleted });
+        }
         return this.operationView(tx, existing);
       }
       const input = { ...normalized };
@@ -220,6 +334,7 @@ export class BankOperationsService {
       );
     });
   }
+
   getOperation(userId: string, id: string) {
     return this.prisma.$transaction(async (tx) => {
       const row = await this.repository.operation(tx, userId, id);
@@ -227,6 +342,7 @@ export class BankOperationsService {
       return this.operationView(tx, row);
     });
   }
+
   updateOperation(userId: string, id: string, dto: UpdateBankOperationDto) {
     return this.repository.write(async (tx) => {
       const old = await this.repository.operation(tx, userId, id);
@@ -251,30 +367,34 @@ export class BankOperationsService {
             where: { id, userId, version: dto.version, deletedAt: null },
             data: { ...input, version: { increment: 1 } },
           })
-        ).count !== 1
-      )
+        ).count !== EXPECTED_UPDATED_ROWS
+      ) {
         conflict();
+      }
       return this.operationView(
         tx,
         await this.repository.operation(tx, userId, id),
       );
     });
   }
+
   deleteOperation(userId: string, id: string, version: number) {
     return this.repository.write(async (tx) => {
       const row = await this.repository.operation(tx, userId, id);
       if (row.deletedAt) return;
       if (row.version !== version) conflict();
       await this.repository.card(tx, userId, row.cardId, true);
-      if (row.targetCardId)
+      if (row.targetCardId) {
         await this.repository.card(tx, userId, row.targetCardId, true);
+      }
       if (
         row.kind === BankOperationKind.Expense &&
         (await tx.bankCardOperation.findFirst({
           where: { userId, originalExpenseId: id, deletedAt: null },
         }))
-      )
+      ) {
         conflict(BankErrorCode.DependentRefunds);
+      }
       if (row.originalExpenseId) {
         const source = await this.repository.operation(
           tx,
@@ -287,9 +407,10 @@ export class BankOperationsService {
               where: { id: source.id, userId, version: source.version },
               data: { version: { increment: 1 } },
             })
-          ).count !== 1
-        )
+          ).count !== EXPECTED_UPDATED_ROWS
+        ) {
           conflict();
+        }
       }
       if (
         (
@@ -297,11 +418,13 @@ export class BankOperationsService {
             where: { id, userId, version, deletedAt: null },
             data: { deletedAt: new Date(), version: { increment: 1 } },
           })
-        ).count !== 1
-      )
+        ).count !== EXPECTED_UPDATED_ROWS
+      ) {
         conflict();
+      }
     });
   }
+
   history(
     userId: string,
     id: string,
@@ -313,8 +436,8 @@ export class BankOperationsService {
       : periodBounds(query as BankOperationsQueryDto);
     return this.prisma.$transaction(async (tx) => {
       await this.repository.card(tx, userId, id);
-      const page = query.page ?? 1,
-        limit = query.limit ?? DEFAULT_BANK_PAGE_SIZE;
+      const limit = query.limit ?? DEFAULT_BANK_PAGE_SIZE,
+        page = query.page ?? FIRST_PAGE;
       const where: Prisma.BankCardOperationWhereInput = {
         userId,
         deletedAt: null,
@@ -327,13 +450,11 @@ export class BankOperationsService {
       const rows = await tx.bankCardOperation.findMany({
         where,
         orderBy: [{ date: 'desc' }, { createdAt: 'desc' }, { id: 'desc' }],
-        skip: (page - 1) * limit,
+        skip: (page - FIRST_PAGE) * limit,
         take: limit,
       });
       return {
-        items: await Promise.all(
-          rows.map((row) => this.operationView(tx, row)),
-        ),
+        items: await this.pageViews(tx, rows),
         total,
         page,
         hasNext: page * limit < total,

src/modules/banking/bank-cards/application/expense-categories.service.ts

@@ -1,16 +1,21 @@
-import { MAX_CATEGORY_NAME_LENGTH } from '../domain/bank-card-limits';
 import { Injectable } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
-import { PrismaService } from '../../../../prisma/prisma.service';
 
-import { conflict, missing, name } from './bank-card-input';
+import { PrismaService } from '../../../../prisma/prisma.service';
+import { MAX_CATEGORY_NAME_LENGTH } from '../domain/bank-card-limits';
 import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
+import { conflict, missing, name } from './bank-card-input';
+
+const EXPECTED_UPDATED_CATEGORIES = 1;
+const VERSION_INCREMENT = 1;
+
 @Injectable()
 export class ExpenseCategoriesService {
   constructor(
     private readonly prisma: PrismaService,
     private readonly repository: BankCardsRepository,
   ) {}
+
   async categories(userId: string) {
     return (
       await this.prisma.expenseCategory.findMany({
@@ -24,6 +29,7 @@ export class ExpenseCategoriesService {
       version,
     }));
   }
+
   createCategory(userId: string, value: string) {
     const label = name(value, MAX_CATEGORY_NAME_LENGTH);
     return this.repository.write(async (tx) => {
@@ -44,6 +50,7 @@ export class ExpenseCategoriesService {
       };
     });
   }
+
   updateCategory(userId: string, id: string, value: string, version: number) {
     const label = name(value, MAX_CATEGORY_NAME_LENGTH);
     return this.repository.write(async (tx) => {
@@ -59,14 +66,15 @@ export class ExpenseCategoriesService {
               version: { increment: 1 },
             },
           })
-        ).count !== 1
-      )
+        ).count !== EXPECTED_UPDATED_CATEGORIES
+      ) {
         conflict();
+      }
       return {
         id,
         name: label,
         isDefault: row.seedKey === 'other',
-        version: version + 1,
+        version: version + VERSION_INCREMENT,
       };
     });
   }

src/modules/banking/bank-cards/application/get-bank-summary.use-case.ts

@@ -1,10 +1,10 @@
 import { Injectable } from '@nestjs/common';
-import { BankSummaryQueryDto } from '../presentation/bank-card.dto';
+
 import { bankSummary } from '../domain/bank-card.calculations';
 import { rubMoney } from '../domain/rub-money';
-
-import { periodBounds } from './bank-card-input';
 import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
+import { BankSummaryQueryDto } from '../presentation/bank-card.dto';
+import { periodBounds } from './bank-card-input';
 @Injectable()
 export class GetBankSummaryUseCase {
   constructor(private readonly repository: BankCardsRepository) {}

src/modules/banking/bank-cards/bank-cards.module.ts

@@ -1,11 +1,12 @@
 import { Module } from '@nestjs/common';
+
 import { AuthModule } from '../../auth/auth.module';
-import { BankCardsController } from './presentation/bank-cards.controller';
-import { BankCardsRepository } from './infrastructure/bank-cards.repository';
 import { BankCardsService } from './application/bank-cards.service';
 import { BankOperationsService } from './application/bank-operations.service';
 import { ExpenseCategoriesService } from './application/expense-categories.service';
 import { GetBankSummaryUseCase } from './application/get-bank-summary.use-case';
+import { BankCardsRepository } from './infrastructure/bank-cards.repository';
+import { BankCardsController } from './presentation/bank-cards.controller';
 @Module({
   imports: [AuthModule],
   controllers: [BankCardsController],

src/modules/banking/bank-cards/domain/bank-card-limits.ts

@@ -1,3 +1,10 @@
+export const FIRST_PAGE = 1;
+
+export const MIN_ENTITY_VERSION = 1;
+
+export const MIN_CATEGORY_NAME_LENGTH = 1;
+
+export const MIN_CARD_NAME_LENGTH = 1;
 export const MAX_CARD_NAME_LENGTH = 100;
 export const MAX_CATEGORY_NAME_LENGTH = 80;
 export const MAX_OPERATION_DESCRIPTION_LENGTH = 500;

src/modules/banking/bank-cards/domain/bank-card.calculations.spec.ts

@@ -116,7 +116,9 @@ describe('bank card calculations', () => {
         amountKopecks: 5000n,
       },
     ];
-    expect(bankSummary('2026-09', operations)).toEqual({
+    expect(
+      bankSummary({ from: '2026-09-01', to: '2026-09-30' }, operations),
+    ).toEqual({
       expenses: 120n,
       refunds: 500n,
       net: -380n,
@@ -125,7 +127,9 @@ describe('bank card calculations', () => {
         { categoryId: 'travel', expenses: 20n, refunds: 0n, net: 20n },
       ],
     });
-    expect(bankSummary('2026-07', operations)).toEqual({
+    expect(
+      bankSummary({ from: '2026-07-01', to: '2026-07-31' }, operations),
+    ).toEqual({
       expenses: 0n,
       refunds: 0n,
       net: 0n,
@@ -141,7 +145,12 @@ describe('bank card calculations', () => {
       amountKopecks: 2n ** 63n - 1n,
     };
     const total = 2n * (2n ** 63n - 1n);
-    expect(bankSummary('2026-09', [operation, operation])).toEqual({
+    expect(
+      bankSummary({ from: '2026-09-01', to: '2026-09-30' }, [
+        operation,
+        operation,
+      ]),
+    ).toEqual({
       expenses: total,
       refunds: 0n,
       net: total,

src/modules/banking/bank-cards/domain/bank-card.calculations.ts

@@ -1,6 +1,7 @@
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../common/time';
 import { BankOperationKind } from './bank-operation-kind';
+import { ZERO_KOPECKS } from './rub-money';
 
-const ISO_MONTH_LENGTH = 7;
 export function moscowToday(now = new Date()): string {
   return new Intl.DateTimeFormat('en-CA', {
     timeZone: 'Europe/Moscow',
@@ -11,11 +12,11 @@ export function moscowToday(now = new Date()): string {
 }
 
 export function isCalendarDate(value: string): boolean {
-  if (value.length !== 10 || !/^\d{4}-\d{2}-\d{2}$/.test(value)) return false;
+  if (value.length !== ISO_DATE_LENGTH || !/^\d{4}-\d{2}-\d{2}$/.test(value)) return false;
   if (value.startsWith('0000')) return false;
   const date = new Date(`${value}T00:00:00.000Z`);
   return (
-    !Number.isNaN(date.getTime()) && date.toISOString().slice(0, 10) === value
+    !Number.isNaN(date.getTime()) && date.toISOString().slice(ISO_DATE_START, ISO_DATE_LENGTH) === value
   );
 }
 
@@ -23,10 +24,10 @@ export function bankBalance(
   cardId: string,
   opening: bigint,
   operations: Array<{
-    kind: string;
-    cardId: string;
-    targetCardId: string | null;
     amountKopecks: bigint;
+    cardId: string;
+    kind: string;
+    targetCardId: null | string;
   }>,
 ): bigint {
   // ponytail: O(N) history fold; optimize only after measuring growing histories.
@@ -36,67 +37,65 @@ export function bankBalance(
       if (
         operation.kind === BankOperationKind.Expense ||
         operation.kind === BankOperationKind.Transfer
-      )
+      ) {
         balance -= operation.amountKopecks;
-      else if (
+      } else if (
         operation.kind === BankOperationKind.Topup ||
         operation.kind === BankOperationKind.Refund
-      )
+      ) {
         balance += operation.amountKopecks;
+      }
     }
     if (
       operation.kind === BankOperationKind.Transfer &&
       operation.targetCardId === cardId
-    )
+    ) {
       balance += operation.amountKopecks;
+    }
   }
   return balance;
 }
 
 export function bankSummary(
-  period: string | { from: string; to: string },
+  period: { from: string; to: string },
   operations: Array<{
-    kind: string;
-    date: string;
     amountKopecks: bigint;
-    categoryId: string | null;
+    categoryId: null | string;
+    date: string;
+    kind: string;
   }>,
 ) {
-  let expenses = 0n;
-  let refunds = 0n;
+  let expenses = ZERO_KOPECKS;
+  let refunds = ZERO_KOPECKS;
   const categories = new Map<
     string,
-    { categoryId: string; expenses: bigint; refunds: bigint; net: bigint }
+    { categoryId: string; expenses: bigint; net: bigint; refunds: bigint }
   >();
   // ponytail: O(N) history fold; optimize only after measuring growing histories.
   for (const operation of operations) {
-    if (
-      typeof period === 'string'
-        ? operation.date.slice(0, ISO_MONTH_LENGTH) !== period
-        : operation.date < period.from || operation.date > period.to
-    )
-      continue;
+    if (operation.date < period.from || operation.date > period.to) continue;
     if (
       operation.kind !== BankOperationKind.Expense &&
       operation.kind !== BankOperationKind.Refund
-    )
+    ) {
       continue;
+    }
     const expense =
       operation.kind === BankOperationKind.Expense
         ? operation.amountKopecks
-        : 0n;
+        : ZERO_KOPECKS;
     const refund =
       operation.kind === BankOperationKind.Refund
         ? operation.amountKopecks
-        : 0n;
+        : ZERO_KOPECKS;
     expenses += expense;
     refunds += refund;
     if (operation.categoryId !== null) {
       const category = categories.get(operation.categoryId) ?? {
         categoryId: operation.categoryId,
-        expenses: 0n,
-        refunds: 0n,
-        net: 0n,
+        expenses: ZERO_KOPECKS,
+        refunds: ZERO_KOPECKS,
+        net: ZERO_KOPECKS,
       };
       category.expenses += expense;
       category.refunds += refund;

src/modules/banking/bank-cards/domain/rub-money.spec.ts

@@ -39,8 +39,9 @@ describe('RUB money', () => {
   });
 
   it('requires positive operation amounts, including at the maximum', () => {
-    for (const value of ['0', '-0.00', '-0.01'])
+    for (const value of ['0', '-0.00', '-0.01']) {
       expect(() => parseRubMoney({ currency: 'RUB', value }, true)).toThrow();
+    }
     expect(parseRubMoney({ currency: 'RUB', value: '0.01' }, true)).toBe(1n);
     expect(
       parseRubMoney({ currency: 'RUB', value: '92233720368547758.07' }, true),

src/modules/banking/bank-cards/domain/rub-money.ts

@@ -1,6 +1,11 @@
-import { decimalFromString, formatDecimal } from '../../../../common/decimal';
 import type { Money } from '../../../../common/money.types';
 
+import { DECIMAL_RADIX, decimalFromString, formatDecimal } from '../../../../common/decimal';
+
+export const ZERO_KOPECKS = 0n;
+
+const RUB_DECIMAL_PLACES = 2;
+
 const MIN_KOPECKS = -9_223_372_036_854_775_808n;
 const MAX_KOPECKS = 9_223_372_036_854_775_807n;
 
@@ -9,22 +14,26 @@ export function parseRubMoney(money: Money, positive = false): bigint {
     money?.currency !== 'RUB' ||
     typeof money.value !== 'string' ||
     money.value !== money.value.trim()
-  )
+  ) {
     throw new TypeError('Expected RUB money with a decimal string');
+  }
   const amount = decimalFromString(money.value);
-  if (amount.scale > 2)
+  if (amount.scale > RUB_DECIMAL_PLACES) {
     throw new RangeError('RUB money supports at most two decimal places');
-  const kopecks = amount.value * 10n ** BigInt(2 - amount.scale);
-  if (kopecks < MIN_KOPECKS || kopecks > MAX_KOPECKS)
+  }
+  const kopecks = amount.value * DECIMAL_RADIX ** BigInt(RUB_DECIMAL_PLACES - amount.scale);
+  if (kopecks < MIN_KOPECKS || kopecks > MAX_KOPECKS) {
     throw new RangeError('RUB money is outside the signed 64-bit range');
-  if (positive && kopecks <= 0n)
+  }
+  if (positive && kopecks <= ZERO_KOPECKS) {
     throw new RangeError('Operation amount must be positive');
+  }
   return kopecks;
 }
 
 export function rubMoney(kopecks: bigint): Money {
   return {
     currency: 'RUB',
-    value: formatDecimal({ value: kopecks, scale: 2 }),
+    value: formatDecimal({ value: kopecks, scale: RUB_DECIMAL_PLACES }),
   };
 }