refactor!: support RUB only (WealthLedger/main#55) (#204)

BREAKING CHANGE: per-currency API fields replaced with single RUB Money.

.ai/architecture.md

@@ -29,9 +29,9 @@ market — котировками, income — выплатами/личными
 domain из-за extraction в функцию. Boundary mappers преобразуют внешние records;
 чистые расчёты portfolio/banking остаются у domain owner.
 
-PrismaService владеет DB lifecycle. Самостоятельные use cases получают данные
-через concrete repositories; существующие связные CRUD/transaction services
-сохраняют прямые queries по [data convention](conventions/data.md).
+PrismaService владеет DB lifecycle. Application services/use cases получают
+данные через concrete repositories; запросы и CAS живут в infrastructure
+по [data convention](conventions/data.md).
 Money — currency + decimal string; расчёты используют точные общие helpers.
 
 Auth управляет identity/session; TbankAccessService проверяет доступ к счёту и
@@ -201,9 +201,9 @@ Circular dependencies устраняй изменением ownership/compositio
 конкретные infrastructure providers, зарегистрированные module. Infrastructure
 может использовать application types/input и domain rules; новые interfaces
 ради инверсии зависимостей не обязательны. Domain не импортирует presentation или
-infrastructure. Существующие связные CRUD/transaction services могут сохранять прямые queries
-по [Data](conventions/data.md); use case получает данные через repository и сам
-Prisma queries не выполняет. Entity/interface на каждую таблицу не требуется.
+infrastructure. Application не строит Prisma queries: use case и связный CRUD
+service обращаются к репозиторию по [Data](conventions/data.md). Entity/interface
+на каждую таблицу не требуется.
 DTO остаются транспортными runtime classes; существующее использование DTO
 на application boundary допустимо по [HTTP API](conventions/http-api.md).
 

.ai/conventions/data.md

@@ -34,19 +34,19 @@ candidate, не повод дублировать их при новом use cas
 вызывает repository, затем чистый `bankSummary` и формирует ответ. Prisma records
 не становятся domain entities: расчёт получает только нужные ему значения.
 
-Не создавай обёртку на каждый вызов Prisma. Существующие связные CRUD/transaction
-services (auth, lifecycle подключения, изменения карт/операций/категорий)
-сохраняют queries рядом с CAS и проверками инварианта, если их перенос требует
-лишь набора pass-through методов. Новая самостоятельная read/write capability
-получает repository method; самостоятельный use case не выполняет Prisma queries.
-`BankCardsRepository.write` сохраняет общую retry/transaction boundary для
-существующих banking services. Такой callback с Prisma transaction client —
-локальная техническая граница этих services, не API для domain или use cases.
+Application-код не импортирует PrismaService и не строит Prisma queries.
+Репозиторий владеет запросом и CAS-проверкой результата, а application —
+правилами и формированием ответа. Типы Prisma допустимы только в type-only
+импортах для существующей транзакционной границы. Не создавай обёртку
+на каждый вызов Prisma без текущего потребителя. `BankCardsRepository.write`
+сохраняет retry/transaction boundary для банковских записей; callback с
+transaction client — локальная техническая граница, не API для domain.
 
 Выбирай только нужные данные, сохраняй user/account ownership в запросах и
 application checks. Предварительный lookup не заменяет unique constraint при race.
-Пример: AuthService обрабатывает P2002 и использует conditional `updateMany`
-для refresh rotation. Сначала пойми invariant; не копируй его flow в другой use case.
+Пример: AuthRepository преобразует P2002 в результат регистрации и выполняет
+conditional `updateMany` для refresh rotation; AuthService сохраняет HTTP
+error contract. Сначала пойми invariant; не копируй его flow в другой use case.
 
 Transaction не охватывает сетевой T-Bank вызов как будто это одна atomic DB
 операция. Планируй порядок и compensation по текущей задаче; не удерживай DB

CHANGELOG.md

@@ -1,5 +1,41 @@
 # Changelog
 
+## [2.4.1](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v2.4.0...v2.4.1) (2026-11-06)
+
+### Bug Fixes
+
+* **events:** refresh saved payout calendars once per hourly pass (WealthLedger/backend[#53](https://git.personal.ksv741.ru/WealthLedger/backend/issues/53)) ([#157](https://git.personal.ksv741.ru/WealthLedger/backend/issues/157)) ([aeb4647](https://git.personal.ksv741.ru/WealthLedger/backend/commit/aeb4647fda3806a419ff3578834c34fff97ae3e8))
+* **portfolio:** publish new complete forecast regardless of request window (WealthLedger/backend[#55](https://git.personal.ksv741.ru/WealthLedger/backend/issues/55)) ([#156](https://git.personal.ksv741.ru/WealthLedger/backend/issues/156)) ([169bee1](https://git.personal.ksv741.ru/WealthLedger/backend/commit/169bee1da5731a1330e995a4a508da544f791387))
+
+### Refactoring
+
+* **api:** describe bank operation create body as oneOf by kind (WealthLedger/backend[#172](https://git.personal.ksv741.ru/WealthLedger/backend/issues/172)) ([#173](https://git.personal.ksv741.ru/WealthLedger/backend/issues/173)) ([02e0d56](https://git.personal.ksv741.ru/WealthLedger/backend/commit/02e0d560c84606d6372cbac001dc94edc348995e))
+* check persisted json payload shape instead of double casts ([#152](https://git.personal.ksv741.ru/WealthLedger/backend/issues/152)) ([#154](https://git.personal.ksv741.ru/WealthLedger/backend/issues/154)) ([a80bbbf](https://git.personal.ksv741.ru/WealthLedger/backend/commit/a80bbbf1e28954812d2d32c6e8f9f67f5a5d42a4))
+* enforce repository boundary in application (WealthLedger/backend[#171](https://git.personal.ksv741.ru/WealthLedger/backend/issues/171)) ([e3ecb8c](https://git.personal.ksv741.ru/WealthLedger/backend/commit/e3ecb8c15e61ccd8de9acb4954a38932099eefc3))
+* expose upcoming-events public api and guard its boundary (WealthLedger/backend[#163](https://git.personal.ksv741.ru/WealthLedger/backend/issues/163)) ([#195](https://git.personal.ksv741.ru/WealthLedger/backend/issues/195)) ([83b515a](https://git.personal.ksv741.ru/WealthLedger/backend/commit/83b515a4536a6c534bcdec82f9f43f9005a44c35))
+* extract catalog enrichment source loader (WealthLedger/backend[#169](https://git.personal.ksv741.ru/WealthLedger/backend/issues/169)) ([#186](https://git.personal.ksv741.ru/WealthLedger/backend/issues/186)) ([c5ccfea](https://git.personal.ksv741.ru/WealthLedger/backend/commit/c5ccfeadea7a9235ebdd6171d9b6f7b89ed2e1e7))
+* inject TbankAccessService directly into stock screener ([#151](https://git.personal.ksv741.ru/WealthLedger/backend/issues/151)) ([#155](https://git.personal.ksv741.ru/WealthLedger/backend/issues/155)) ([554410a](https://git.personal.ksv741.ru/WealthLedger/backend/commit/554410a2716ce13d7202fd27a621c72734b5e6c8))
+* move auth persistence into repository (WealthLedger/backend[#171](https://git.personal.ksv741.ru/WealthLedger/backend/issues/171)) ([61c5525](https://git.personal.ksv741.ru/WealthLedger/backend/commit/61c55256e756b9187e1087215d35db3fd30ac148))
+* move bank card queries into repository (WealthLedger/backend[#171](https://git.personal.ksv741.ru/WealthLedger/backend/issues/171)) ([b3d4801](https://git.personal.ksv741.ru/WealthLedger/backend/commit/b3d4801cfe67ecf301c58c894676b13b8833c4a6))
+* move category persistence into bank repository (WealthLedger/backend[#171](https://git.personal.ksv741.ru/WealthLedger/backend/issues/171)) ([efac720](https://git.personal.ksv741.ru/WealthLedger/backend/commit/efac7201e06f49b264854566b2e3f73931f3f6cc))
+* replace deep imports with native node aliases (WealthLedger/backend[#165](https://git.personal.ksv741.ru/WealthLedger/backend/issues/165)) ([#193](https://git.personal.ksv741.ru/WealthLedger/backend/issues/193)) ([07cfd08](https://git.personal.ksv741.ru/WealthLedger/backend/commit/07cfd08df9b13ac3fd13da153b12acf159329cea))
+* retire legacy tbank-sync status and sync=observe (WealthLedger/backend[#196](https://git.personal.ksv741.ru/WealthLedger/backend/issues/196)) ([d792baa](https://git.personal.ksv741.ru/WealthLedger/backend/commit/d792baaf59a1c204458ec249ee3ce907f3564455))
+* route bank card reads through repository (WealthLedger/backend[#171](https://git.personal.ksv741.ru/WealthLedger/backend/issues/171)) ([b3ca11d](https://git.personal.ksv741.ru/WealthLedger/backend/commit/b3ca11d1410899bb9c6707113ba9fd1f3b30e4bf))
+* route bank operation queries through repository (WealthLedger/backend[#171](https://git.personal.ksv741.ru/WealthLedger/backend/issues/171)) ([cea77f6](https://git.personal.ksv741.ru/WealthLedger/backend/commit/cea77f6d568809d989462c121f50b4e07e7efca5))
+* share prisma json codec and check progress shape (WealthLedger/backend[#170](https://git.personal.ksv741.ru/WealthLedger/backend/issues/170)) ([#191](https://git.personal.ksv741.ru/WealthLedger/backend/issues/191)) ([85a7196](https://git.personal.ksv741.ru/WealthLedger/backend/commit/85a71967fa4e85427a991c973c6528206332cf5e))
+* share sync reservation join rule (WealthLedger/backend[#119](https://git.personal.ksv741.ru/WealthLedger/backend/issues/119)) ([#162](https://git.personal.ksv741.ru/WealthLedger/backend/issues/162)) ([fa0a6e5](https://git.personal.ksv741.ru/WealthLedger/backend/commit/fa0a6e56030bb1c0302cd7588d30e7fa91e19c11))
+* share tbank-sync claim and generation lock (WealthLedger/backend[#166](https://git.personal.ksv741.ru/WealthLedger/backend/issues/166)) ([#188](https://git.personal.ksv741.ru/WealthLedger/backend/issues/188)) ([5d31b3e](https://git.personal.ksv741.ru/WealthLedger/backend/commit/5d31b3e6dd37d1c79b61c43ed820947b5b38aaa1))
+* single bank operation projection and domain rules (WealthLedger/backend[#168](https://git.personal.ksv741.ru/WealthLedger/backend/issues/168)) ([#189](https://git.personal.ksv741.ru/WealthLedger/backend/issues/189)) ([deda7ff](https://git.personal.ksv741.ru/WealthLedger/backend/commit/deda7ffc2cc8185eba48a18c37272c404a3e9983))
+* split brokerage operations repository and cursor codec (WealthLedger/backend[#167](https://git.personal.ksv741.ru/WealthLedger/backend/issues/167)) ([#190](https://git.personal.ksv741.ru/WealthLedger/backend/issues/190)) ([cd78b43](https://git.personal.ksv741.ru/WealthLedger/backend/commit/cd78b43783cb7469e44b9531d165603df258b55e))
+
+### CI
+
+* drop stale npm audit advisory ignore (WealthLedger/backend[#158](https://git.personal.ksv741.ru/WealthLedger/backend/issues/158)) ([#159](https://git.personal.ksv741.ru/WealthLedger/backend/issues/159)) ([1a5de9b](https://git.personal.ksv741.ru/WealthLedger/backend/commit/1a5de9bebd060a5ff2ca188ad862c4ec5aa06ffd))
+
+### Maintenance
+
+* **deps:** set Renovate release age, PR limit and update groups (WealthLedger/main[#6](https://git.personal.ksv741.ru/WealthLedger/backend/issues/6)) ([#160](https://git.personal.ksv741.ru/WealthLedger/backend/issues/160)) ([bade5fa](https://git.personal.ksv741.ru/WealthLedger/backend/commit/bade5fae1c3170b38717b26eda56ca20183f4ec8))
+
 ## [2.4.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v2.3.1...v2.4.0) (2026-11-01)
 
 ### Features

eslint-suppressions.json

@@ -53,11 +53,6 @@
       "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
@@ -101,7 +96,7 @@
       "count": 2
     },
     "sonarjs/no-nested-conditional": {
-      "count": 9
+      "count": 6
     }
   },
   "src/modules/investments/operations/domain/operations-sync-plan.ts": {
@@ -135,11 +130,6 @@
       "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
@@ -158,9 +148,6 @@
   "test/tbank-ledger-local.e2e-spec.ts": {
     "sonarjs/no-nested-conditional": {
       "count": 1
-    },
-    "sonarjs/no-nested-template-literals": {
-      "count": 3
     }
   }
 }

eslint.config.mjs

@@ -15,6 +15,18 @@ import globals from 'globals';
 import tseslint from 'typescript-eslint';
 
 const tests = ['**/*.spec.ts', 'test/**/*.ts'];
+const guardedModules = [
+  {
+    name: 'tbank-sync',
+    except: [
+      './tbank-sync.api.ts',
+      './tbank-sync.dto.ts',
+      './tbank-sync.module.ts',
+      './tbank-sync-repository.module.ts',
+    ],
+  },
+  { name: 'upcoming-events', except: ['./upcoming-events.api.ts', './upcoming-events.module.ts'] },
+];
 const prismaImports = [
   '@prisma/*', '**/generated/prisma/**', '**/prisma.service',
 ];
@@ -158,13 +170,14 @@ export default defineConfig(
     },
   },
   {
-    files: ['src/**/*.use-case.ts'],
+    files: ['src/**/application/**/*.ts'],
     ignores: tests,
     rules: {
       'no-restricted-imports': ['error', {
         patterns: [{
           group: prismaImports,
-          message: 'Use cases obtain data through concrete repositories.',
+          allowTypeImports: true,
+          message: 'Application code obtains data through concrete repositories; type-only imports are allowed.',
         }],
       }],
     },
@@ -212,24 +225,20 @@ export default defineConfig(
       '@typescript-eslint/no-unsafe-enum-comparison': 'error',
     },
   },
-  {
-    files: ['src/**/*.ts'],
-    ignores: [...tests, 'src/modules/investments/tbank-sync/**'],
+  // Separate rule so it does not replace layer-specific no-restricted-imports configs.
+  // A module may import its own internals, so each guarded module gets a block without its zone.
+  ...[undefined, ...guardedModules].map((own) => ({
+    files: own ? [`src/modules/investments/${own.name}/**/*.ts`] : ['src/**/*.ts'],
+    ignores: own ? tests : [...tests, ...guardedModules.map(({ name }) => `src/modules/investments/${name}/**`)],
     rules: {
-      // Separate rule so it does not replace layer-specific no-restricted-imports configs.
       'import-x/no-restricted-paths': ['error', {
-        zones: [{
+        zones: guardedModules.filter((module) => module !== own).map(({ except, name }) => ({
           target: './src',
-          from: './src/modules/investments/tbank-sync',
-          except: [
-            './tbank-sync.api.ts',
-            './tbank-sync.dto.ts',
-            './tbank-sync.module.ts',
-            './tbank-sync-repository.module.ts',
-          ],
-          message: 'Use tbank-sync.api for cross-module access.',
-        }],
+          from: `./src/modules/investments/${name}`,
+          except,
+          message: `Use ${name}.api for cross-module access.`,
+        })),
       }],
     },
-  },
+  })),
 );

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "wealth-ledger-backend",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "wealth-ledger-backend",
-      "version": "2.4.0",
+      "version": "2.4.1",
       "license": "UNLICENSED",
       "dependencies": {
         "@grpc/grpc-js": "1.14.6",

package.json

@@ -1,9 +1,19 @@
 {
   "name": "wealth-ledger-backend",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "description": "",
   "author": "",
   "private": true,
+  "imports": {
+    "#generated/*": {
+      "development": "./dist-dev/generated/*",
+      "default": "./dist/generated/*"
+    },
+    "#src/*": {
+      "development": "./dist-dev/src/*",
+      "default": "./dist/src/*"
+    }
+  },
   "license": "UNLICENSED",
   "engines": {
     "node": "v24.22.1"
@@ -14,8 +24,8 @@
     "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": "NODE_ENV=development nest start --debug --watch --path tsconfig.dev.json",
+    "start:dev": "NODE_ENV=development NODE_OPTIONS=--conditions=development nest start --watch --path tsconfig.dev.json",
+    "start:debug": "NODE_ENV=development NODE_OPTIONS=--conditions=development nest start --debug --watch --path tsconfig.dev.json",
     "start:prod": "node dist/src/main.js",
     "lint": "npm run lint:check",
     "lint:check": "eslint . --max-warnings=0",
@@ -131,6 +141,10 @@
     }
   },
   "jest": {
+    "moduleNameMapper": {
+      "^#generated/(.*)$": "<rootDir>/../generated/$1",
+      "^#src/(.*)$": "<rootDir>/$1"
+    },
     "moduleFileExtensions": [
       "js",
       "json",

prisma/migrations/20261107214500_add_market_index_history/migration.sql

@@ -0,0 +1,15 @@
+CREATE TABLE "MarketIndexDailyClose" (
+    "secid" TEXT NOT NULL,
+    "tradeDate" TEXT NOT NULL,
+    "close" TEXT NOT NULL,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "MarketIndexDailyClose_pkey" PRIMARY KEY ("secid","tradeDate")
+);
+
+CREATE TABLE "MarketIndexSyncState" (
+    "secid" TEXT NOT NULL PRIMARY KEY,
+    "lastAttemptAt" DATETIME,
+    "lastSuccessAt" DATETIME,
+    "coveredFrom" TEXT,
+    "coveredTo" TEXT
+);

prisma/migrations/20261108000000_rub_only_value_points/migration.sql

@@ -0,0 +1,32 @@
+-- RedefineTables
+PRAGMA defer_foreign_keys=ON;
+PRAGMA foreign_keys=OFF;
+CREATE TABLE "new_TbankPortfolioValuePoint" (
+    "userId" TEXT NOT NULL,
+    "accountId" TEXT NOT NULL,
+    "attemptId" TEXT NOT NULL,
+    "value" TEXT NOT NULL,
+    "capturedAt" DATETIME NOT NULL,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    PRIMARY KEY ("userId", "accountId", "attemptId"),
+    CONSTRAINT "TbankPortfolioValuePoint_userId_accountId_fkey" FOREIGN KEY ("userId", "accountId") REFERENCES "TbankPortfolioValueHistory" ("userId", "accountId") ON DELETE CASCADE ON UPDATE RESTRICT
+);
+-- RUB-only: keep the RUB row per key; non-RUB rows are dropped.
+INSERT INTO "new_TbankPortfolioValuePoint" ("accountId", "attemptId", "capturedAt", "createdAt", "userId", "value")
+SELECT "accountId", "attemptId", "capturedAt", "createdAt", "userId", "value"
+FROM "TbankPortfolioValuePoint"
+WHERE "currency" = 'RUB';
+DROP TABLE "TbankPortfolioValuePoint";
+ALTER TABLE "new_TbankPortfolioValuePoint" RENAME TO "TbankPortfolioValuePoint";
+CREATE INDEX "TbankPortfolioValuePoint_userId_accountId_capturedAt_idx" ON "TbankPortfolioValuePoint"("userId", "accountId", "capturedAt");
+
+-- RUB-only: persisted JSON payloads written in the old multi-currency shape
+-- are stale. A missing snapshot/forecast is the app's normal "not synced yet"
+-- state: reads report availability 'missing' and the hourly walk rebuilds them
+-- on the next pass. Delete the stale rows instead of failing reads with 500.
+DELETE FROM "TbankPortfolio";
+DELETE FROM "TbankForecast";
+
+PRAGMA foreign_keys=ON;
+PRAGMA defer_foreign_keys=OFF;

prisma/migrations/20261108000001_rub_only_resync_now/migration.sql

@@ -0,0 +1,3 @@
+-- RUB-only: snapshots were dropped by the previous migration; clearing the hourly
+-- schedule makes the next scheduler tick rebuild them instead of waiting for the term.
+DELETE FROM "TbankSyncWork" WHERE "scopeKey" = 'hourly';

prisma/schema.prisma

@@ -8,6 +8,24 @@ datasource db {
   provider = "sqlite"
 }
 
+// Public MOEX index closes contain no user holdings or credentials.
+model MarketIndexDailyClose {
+  secid     String
+  tradeDate String
+  close     String
+  createdAt DateTime @default(now())
+
+  @@id([secid, tradeDate])
+}
+
+model MarketIndexSyncState {
+  secid         String @id
+  lastAttemptAt DateTime?
+  lastSuccessAt DateTime?
+  coveredFrom   String?
+  coveredTo     String?
+}
+
 model User {
   id              String           @id
   email           String           @unique
@@ -83,18 +101,17 @@ model TbankPortfolioValueHistory {
   @@id([userId, accountId])
 }
 
-// One row per currency of a fully valued successful portfolio attempt.
+// One row per fully valued successful portfolio attempt (RUB only).
 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])
+  @@id([userId, accountId, attemptId])
   @@index([userId, accountId, capturedAt])
 }
 

src/app.module.ts

@@ -9,6 +9,7 @@ import { BrokerageAccountsModule } from './modules/investments/brokerage-account
 import { IncomeModule } from './modules/investments/income/income.module';
 import { InstrumentsModule } from './modules/investments/instruments/instruments.module';
 import { OperationsModule } from './modules/investments/operations/operations.module';
+import { PerformanceModule } from './modules/investments/performance/performance.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';
@@ -27,6 +28,7 @@ import { PrismaModule } from './prisma/prisma.module';
     BankCardsModule,
     BrokerageAccountsModule,
     PortfolioModule,
+    PerformanceModule,
     OperationsModule,
     IncomeModule,
     UpcomingEventsModule,

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

@@ -8,6 +8,73 @@ const emptyEvents = {
 
 describe('MoexClient', () => {
   afterEach(() => jest.restoreAllMocks());
+  it('loads all pages of index closes without dropping a page', async () => {
+    const fetchMock = jest.spyOn(global, 'fetch').mockImplementation((input) => {
+      const start = Number(new URL(input as string).searchParams.get('start'));
+      return Promise.resolve({
+        ok: true,
+        status: 200,
+        json: () => Promise.resolve({
+          'history': {
+            columns: ['TRADEDATE', 'CLOSE'],
+            data: start === 0 ? [['2026-10-01', 5752.22]] : [['2026-10-02', 5745.61]],
+          },
+          'history.cursor': {
+            columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+            data: [[start, 2, 1]],
+          },
+        }),
+      } as Response);
+    });
+    expect(await new MoexClient().indexHistory('MCFTRR', '2026-10-01', '2026-10-02')).toEqual([
+      { tradeDate: '2026-10-01', close: '5752.22' },
+      { tradeDate: '2026-10-02', close: '5745.61' },
+    ]);
+    expect(fetchMock).toHaveBeenCalledTimes(2);
+  });
+
+  it('rejects a later malformed page instead of returning partial index history', async () => {
+    jest.spyOn(global, 'fetch').mockImplementation((input) => {
+      const start = Number(new URL(input as string).searchParams.get('start'));
+      return Promise.resolve({
+        ok: true,
+        status: 200,
+        json: () => Promise.resolve({
+          'history': {
+            columns: ['TRADEDATE', 'CLOSE'],
+            data: [[start ? '2026-10-02' : '2026-10-01', start ? null : 100]],
+          },
+          'history.cursor': { columns: ['INDEX', 'TOTAL', 'PAGESIZE'], data: [[start, 2, 1]] },
+        }),
+      } as Response);
+    });
+    await expect(new MoexClient().indexHistory('IMOEX', '2026-10-01', '2026-10-02'))
+      .rejects.toThrow();
+  });
+
+  it('rejects an unsuccessful index history response', async () => {
+    jest.spyOn(global, 'fetch').mockResolvedValue({ ok: false, status: 503 } as Response);
+    await expect(new MoexClient().indexHistory('MCFTRR', '2026-10-01', '2026-10-02'))
+      .rejects.toThrow();
+  });
+
+  it('rejects a timed-out index history request', async () => {
+    jest.spyOn(global, 'fetch').mockRejectedValue(new DOMException('Timed out', 'TimeoutError'));
+    await expect(new MoexClient().indexHistory('IMOEX', '2026-10-01', '2026-10-02'))
+      .rejects.toThrow();
+  });
+
+  it('rejects duplicate or out-of-order trading dates', async () => {
+    jest.spyOn(global, 'fetch').mockResolvedValue({
+      ok: true, status: 200,
+      json: () => Promise.resolve({
+        'history': { columns: ['TRADEDATE', 'CLOSE'], data: [['2026-10-02', 100], ['2026-10-01', 101]] },
+        'history.cursor': { columns: ['INDEX', 'TOTAL', 'PAGESIZE'], data: [[0, 2, 100]] },
+      }),
+    } as Response);
+    await expect(new MoexClient().indexHistory('IMOEX', '2026-10-01', '2026-10-02'))
+      .rejects.toThrow();
+  });
   it('uses effective yield only for the exact ISIN and board and preserves its own price and date', async () => {
     jest.spyOn(global, 'fetch').mockResolvedValue({
       ok: true,
@@ -273,4 +340,59 @@ describe('MoexClient', () => {
       expect(starts).toEqual(['0', '1']);
     },
   );
+
+  it('filters non-RUB coupons and maturity out of bond events', async () => {
+    const pages: Record<string, unknown> = {
+      coupons: Response.json({
+        'coupons': {
+          columns: ['coupondate', 'value', 'faceunit'],
+          data: [
+            ['2099-02-01', '2', 'SUR'],
+            ['2099-02-02', '3', 'USD'],
+          ],
+        },
+        'coupons.cursor': {
+          columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+          data: [[0, 2, 100]],
+        },
+      }),
+      offers: Response.json({
+        'offers': {
+          columns: ['offerdate'],
+          data: [['2099-02-28']],
+        },
+        'offers.cursor': {
+          columns: ['INDEX', 'TOTAL', 'PAGESIZE'],
+          data: [[0, 1, 100]],
+        },
+      }),
+      description: Response.json({
+        description: {
+          columns: ['name', 'value'],
+          data: [
+            ['MATDATE', '2099-02-28'],
+            ['FACEVALUE', '500'],
+            ['FACEUNIT', 'USD'],
+          ],
+        },
+      }),
+    };
+    const fetchMock = jest
+      .spyOn(global, 'fetch')
+      .mockImplementation((input) => {
+        const url = new URL(input instanceof Request ? input.url : String(input));
+        const block = url.searchParams.get('iss.only')?.split(',')[0] ?? 'description';
+        // eslint-disable-next-line security/detect-object-injection -- Keys are fixed MOEX block names of this test's page map.
+        const page = pages[block] ?? pages.description;
+        return Promise.resolve(page as Response);
+      });
+    try {
+      await expect(new MoexClient().bondEvents('BOND')).resolves.toEqual([
+        { type: 'coupon', date: '2099-02-01', value: '2', currency: 'RUB' },
+        { type: 'offer', date: '2099-02-28' },
+      ]);
+    } finally {
+      fetchMock.mockRestore();
+    }
+  });
 });

src/integrations/moex/moex.client.ts

@@ -10,6 +10,13 @@ const EMPTY_PAGE_SIZE = 0;
 const MIN_CURSOR_VALUE = 0;
 
 const FALLBACK_PAGE_SIZE = 100;
+const INDEX_COLUMNS = ['TRADEDATE', 'CLOSE'];
+const ISO_DATE_LENGTH = 10;
+const ZERO_CLOSE = 0;
+const ISO_DATE_START = 0;
+const LAST_HISTORY_ROW = -1;
+
+const isoDayPattern = /^\d{4}-\d{2}-\d{2}$/;
 
 const baseUrl = 'https://iss.moex.com/iss';
 const timeoutMs = 10_000;
@@ -28,9 +35,64 @@ export type MoexBondYield = {
   tradeAt: string;
   value: string;
 };
+export type MoexIndexClose = { close: string; tradeDate: string };
 
 @Injectable()
 export class MoexClient {
+  async indexHistory(
+    secid: 'IMOEX' | 'MCFTRR',
+    from: string,
+    till: string,
+  ): Promise<MoexIndexClose[]> {
+    const path = `history/engines/stock/markets/index/securities/${secid}.json`;
+    const rows: MoexIndexClose[] = [];
+    let start = FIRST_PAGE_OFFSET;
+    for (;;) {
+      const query = new URLSearchParams({
+        from,
+        till,
+        'start': String(start),
+        'iss.meta': 'off',
+        'history.columns': 'TRADEDATE,CLOSE',
+      });
+      const response = await this.request(`${baseUrl}/${path}?${query}`);
+      if (!response) throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+      const block = response.history;
+      if (
+        !block || !Array.isArray(block.columns) ||
+        block.columns.length !== INDEX_COLUMNS.length ||
+        // eslint-disable-next-line security/detect-object-injection -- Offset comes from a fixed-length validated columns array.
+        block.columns.some((column, offset) => column !== INDEX_COLUMNS[offset])
+      ) throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+      const current = parseRows(block);
+      let previousDate = rows.at(LAST_HISTORY_ROW)?.tradeDate;
+      for (const row of current) {
+        const tradeDate = text(row.tradedate);
+        const close = numberText(row.close);
+        if (
+          !tradeDate || !isoDayPattern.test(tradeDate) ||
+          Number.isNaN(Date.parse(`${tradeDate}T00:00:00Z`)) ||
+          new Date(`${tradeDate}T00:00:00Z`).toISOString().slice(ISO_DATE_START, ISO_DATE_LENGTH) !== tradeDate ||
+            !close || Number(close) <= ZERO_CLOSE ||
+            (previousDate !== undefined && tradeDate <= previousDate)
+        ) throw new ServiceUnavailableException({ code: MoexErrorCode.Unavailable });
+        rows.push({ tradeDate, close });
+        previousDate = tradeDate;
+      }
+      const cursor = parseRows(response['history.cursor']);
+      const index = integer(cursor[0]?.index);
+      const total = integer(cursor[0]?.total);
+      const pageSize = integer(cursor[0]?.pagesize);
+      if (
+        cursor.length !== EXPECTED_CURSOR_ROWS || index !== start ||
+        total === null || pageSize === null || 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;
+    }
+  }
+
   async bondYield(
     secid: string,
     isin: string,
@@ -95,9 +157,9 @@ export class MoexClient {
     for (const row of coupons) {
       const date = text(row.coupondate);
       const value = numberText(row.value);
-      const currency = currencyText(row.faceunit);
-      if (date && value && currency) {
-        events.push({ type: 'coupon', date, value, currency });
+      // RUB-only: coupons in other currencies are filtered out at this ingest boundary.
+      if (date && value && currencyText(row.faceunit) === 'RUB') {
+        events.push({ type: 'coupon', date, value, currency: 'RUB' });
       }
     }
     for (const row of offers) {
@@ -109,9 +171,8 @@ export class MoexClient {
     );
     const date = values.get('MATDATE');
     const value = numberText(values.get('FACEVALUE'));
-    const currency = currencyText(values.get('FACEUNIT'));
-    if (date && value && currency) {
-      events.push({ type: 'maturity', date, value, currency });
+    if (date && value && currencyText(values.get('FACEUNIT')) === 'RUB') {
+      events.push({ type: 'maturity', date, value, currency: 'RUB' });
     }
     return events;
   }

src/integrations/tbank/decimal.ts

@@ -1,4 +1,6 @@
-import { Decimal } from '../../common/decimal';
+import type { Money } from '../../common/money.types';
+
+import { Decimal, formatDecimal } from '../../common/decimal';
 
 const MISSING_PROTO_COMPONENT = 0;
 
@@ -6,6 +8,12 @@ const NANO = 1_000_000_000n;
 
 export type ProtoDecimal = { nano?: number | string; units?: number | string };
 
+export function rubMoney(value?: ProtoDecimal & { currency?: string }): Money | null {
+  return value?.currency?.trim().toUpperCase() === 'RUB'
+    ? { currency: 'RUB', value: formatDecimal(decimal(value)) }
+    : null;
+}
+
 export function decimal(value: ProtoDecimal): Decimal {
   return {
     value: BigInt(value.units ?? MISSING_PROTO_COMPONENT) * NANO + BigInt(value.nano ?? MISSING_PROTO_COMPONENT),

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

@@ -5,13 +5,15 @@ import { isDeepStrictEqual } from 'node:util';
 import type {
   TbankInstrumentLookup as MetadataLookupRow,
   TbankInstrument as MetadataRow,
-  Prisma,
-} from '../../../generated/prisma/client';
+} from '#generated/prisma/client';
+
 import type { TbankInstrument } from './tbank.client';
 
 import { PrismaService } from '../../prisma/prisma.service';
+import { toJson } from '../../prisma/to-json';
 import { isJoinableRunningAttempt, type TbankSyncAttempt } from './tbank-access.service';
 import { TbankErrorCode } from './tbank-error-code';
+import { claimSyncWork, lockConnectionGeneration } from './tbank-sync-claim';
 
 const FIRST_BATCH_OFFSET = 0;
 const UNCHANGED_REVISION_INCREMENT = 0;
@@ -119,11 +121,8 @@ export class InstrumentMetadataRepository {
     active: ReadonlySet<string>,
   ) {
     return this.prisma.$transaction(async (tx) => {
-      const valid = await tx.tbankConnection.updateMany({
-        where: { ...attemptOwner, invalidToken: false },
-        data: { membershipRevision: { increment: 0 } },
-      });
-      if (!valid.count) return null;
+      const valid = await lockConnectionGeneration(tx, attemptOwner);
+      if (!valid) return null;
       const scope = {
         ...attemptOwner,
         scopeKey: `metadata:${metadataKey(identity)}`,
@@ -167,15 +166,11 @@ export class InstrumentMetadataRepository {
 
   publish(attempt: TbankSyncAttempt, results: MetadataLookup[], now: Date) {
     return this.prisma.$transaction(async (tx) => {
-      const claimed = await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: { state: 'complete', progress: {} },
+      const claimed = await claimSyncWork(tx, attempt, {
+        state: 'complete',
+        progress: {},
       });
-      if (!claimed.count) return false;
+      if (!claimed) return false;
       const aliases = new Map(
         results.map((result) => [`${result.type}:${result.id}`, result]),
       );
@@ -212,9 +207,7 @@ export class InstrumentMetadataRepository {
           const previous = await tx.tbankInstrument.findUnique({
             where: { provider_uid: key },
           });
-          const payload = JSON.parse(
-            JSON.stringify(instrument),
-          ) as Prisma.InputJsonObject;
+          const payload = toJson(instrument);
           const data = {
             metadata: payload,
             figi:
@@ -264,18 +257,17 @@ export class InstrumentMetadataRepository {
   }
 
   async finishObserver(attempt: TbankSyncAttempt, success: boolean) {
-    await this.prisma.tbankSyncWork.updateMany({
-      where: {
-        ...attempt,
-        state: 'running',
-        ...(success ? { connection: { invalidToken: false } } : {}),
-      },
-      data: {
+    await claimSyncWork(
+      this.prisma,
+      attempt,
+      {
         state: success ? 'complete' : 'failed',
         errorCode: success ? null : TbankErrorCode.Unavailable,
       },
-    });
+      { withoutConnectionFence: !success },
+    );
     if (success) {
+      // Fails sibling attempts whose connection was invalidated mid-flight.
       await this.prisma.tbankSyncWork.updateMany({
         where: {
           ...attempt,

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

@@ -12,6 +12,7 @@ import { PrismaService } from '../../prisma/prisma.service';
 import { supportedTbankAccounts } from './tbank-account.policy';
 import { TbankErrorCode } from './tbank-error-code';
 import { tbankSourceNeedsRefresh } from './tbank-source.policy';
+import { claimSyncWork, lockConnectionGeneration } from './tbank-sync-claim';
 import { TbankTokenService } from './tbank-token.service';
 
 const EXPECTED_UPDATED_CONNECTIONS = 1;
@@ -56,11 +57,8 @@ export class TbankAccessService {
     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 current = await lockConnectionGeneration(tx, { userId, revision });
+      if (!current) return null;
       const connection = await tx.tbankConnection.findUniqueOrThrow({
         where: { userId },
       });
@@ -110,15 +108,11 @@ export class TbankAccessService {
 
   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 },
+    const result = await claimSyncWork(this.prisma, attempt, {
+      state: 'failed',
+      errorCode: TbankErrorCode.Unavailable,
     });
-    return result.count === EXPECTED_UPDATED_CONNECTIONS;
+    return result === EXPECTED_UPDATED_CONNECTIONS;
   }
 
   async tokenForAttempt(attempt: TbankSyncAttempt): Promise<null | string> {
@@ -163,15 +157,8 @@ export class TbankAccessService {
     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 claimed = await claimSyncWork(tx, attempt, { updatedAt: new Date() });
+      if (!claimed) return false;
       const { userId, revision } = attempt;
       const previous = await tx.tbankAccount.findMany({
         where: { userId, revision },
@@ -244,11 +231,11 @@ export class TbankAccessService {
 
   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;
+      const claimed = await claimSyncWork(tx, attempt, {
+        state: 'failed',
+        errorCode: TbankErrorCode.InvalidToken,
+      }, { withoutConnectionFence: true });
+      if (!claimed) return false;
       await tx.tbankConnection.update({
         where: {
           userId_revision: {

src/integrations/tbank/tbank-protocol.ts

@@ -49,11 +49,17 @@ export enum TbankOperationType {
   Dividend = 'OPERATION_TYPE_DIVIDEND',
   DividendTax = 'OPERATION_TYPE_DIVIDEND_TAX',
   DividendTransfer = 'OPERATION_TYPE_DIVIDEND_TRANSFER',
+  InpMulti = 'OPERATION_TYPE_INP_MULTI',
   Input = 'OPERATION_TYPE_INPUT',
+  InputAcquiring = 'OPERATION_TYPE_INPUT_ACQUIRING',
   InputSecurities = 'OPERATION_TYPE_INPUT_SECURITIES',
+  InputSwift = 'OPERATION_TYPE_INPUT_SWIFT',
   MarginFee = 'OPERATION_TYPE_MARGIN_FEE',
+  OutMulti = 'OPERATION_TYPE_OUT_MULTI',
   Output = 'OPERATION_TYPE_OUTPUT',
+  OutputAcquiring = 'OPERATION_TYPE_OUTPUT_ACQUIRING',
   OutputSecurities = 'OPERATION_TYPE_OUTPUT_SECURITIES',
+  OutputSwift = 'OPERATION_TYPE_OUTPUT_SWIFT',
   Sell = 'OPERATION_TYPE_SELL',
   SellCard = 'OPERATION_TYPE_SELL_CARD',
   SellMargin = 'OPERATION_TYPE_SELL_MARGIN',

src/integrations/tbank/tbank-sync-claim.ts

@@ -0,0 +1,54 @@
+import type { Prisma } from '#generated/prisma/client';
+
+import type { TbankSyncAttempt } from './tbank-access.service';
+
+const NO_UPDATED_ROWS = 0;
+
+// Shared owners for the tbank-sync DB claim/lock protocol.
+// Both helpers are CAS fences: they run inside the caller's transaction and
+// keep the exact where/data shapes they replaced. Callers keep deciding
+// success from the claim count exactly as before.
+
+// Claims the active TbankSyncWork row: only the still-running attempt of a
+// valid connection may transition. `data` is the state transition to apply.
+export type ClaimOptions = {
+  // Overrides the default 'running' fence (e.g. an initiator row also
+  // accepts 'complete').
+  state: Prisma.TbankSyncWorkWhereInput['state'] | undefined;
+  // true drops the `connection: { invalidToken: false }` guard for fences
+  // that must also fire on an invalidated connection.
+  withoutConnectionFence: boolean | undefined;
+};
+export async function claimSyncWork(
+  tx: Prisma.TransactionClient,
+  attempt: TbankSyncAttempt,
+  data: Prisma.TbankSyncWorkUpdateManyMutationInput,
+  options: Partial<ClaimOptions> = {},
+): Promise<number> {
+  const result = await tx.tbankSyncWork.updateMany({
+    where: {
+      ...attempt,
+      state: options.state ?? 'running',
+      ...(options.withoutConnectionFence
+        ? {}
+        : { connection: { invalidToken: false } }),
+    },
+    data,
+  });
+  return result.count;
+}
+
+// Locks the connection generation before reserving or publishing work: the
+// row must still be the current revision with a valid token. `extra`
+// (e.g. account membership) is merged into the where clause.
+export async function lockConnectionGeneration(
+  tx: Prisma.TransactionClient,
+  owner: { revision: string; userId: string },
+  extra: Prisma.TbankConnectionWhereInput = {},
+): Promise<boolean> {
+  const result = await tx.tbankConnection.updateMany({
+    where: { ...owner, ...extra, invalidToken: false },
+    data: { membershipRevision: { increment: 0 } },
+  });
+  return result.count > NO_UPDATED_ROWS;
+}

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

@@ -2,12 +2,14 @@ import { ConflictException, UnauthorizedException } from '@nestjs/common';
 import { JwtService } from '@nestjs/jwt';
 import { createHash } from 'crypto';
 
+import { AuthRepository } from '../infrastructure/auth.repository';
+
 jest.mock('bcrypt', () => ({
   hash: jest.fn(() => Promise.resolve('password-hash')),
   compare: jest.fn(() => Promise.resolve(true)),
 }));
 
-jest.mock('../../../prisma/prisma.service', () => ({
+jest.mock('#src/prisma/prisma.service', () => ({
   PrismaService: class PrismaService {},
 }));
 
@@ -51,7 +53,7 @@ describe('AuthService', () => {
       delete: jest.fn(),
     },
   };
-  const service = new AuthService(prisma as never, jwt);
+  const service = new AuthService(new AuthRepository(prisma as never), jwt);
 
   beforeEach(() => {
     jest.clearAllMocks();

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

@@ -7,15 +7,14 @@ 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 type { Session, User } from '#generated/prisma/client';
+
+import { HttpErrorCode } from '#src/common/error-code';
+
+import { AuthRepository } from '../infrastructure/auth.repository';
 import { AuthErrorCode } from './auth-error-code';
 import { AuthenticationResult, AuthUser, RefreshPayload } from './auth.types';
 
-const EXPECTED_ROTATED_SESSIONS = 1;
-
 const PASSWORD_HASH_ROUNDS = 12;
 export const REFRESH_TTL_MS = 604_800_000;
 
@@ -28,7 +27,7 @@ const DUMMY_PASSWORD_HASH =
 @Injectable()
 export class AuthService {
   constructor(
-    private readonly prisma: PrismaService,
+    private readonly repository: AuthRepository,
     private readonly jwt: JwtService,
   ) {}
 
@@ -36,27 +35,18 @@ export class AuthService {
     email: string,
     password: string,
   ): Promise<AuthenticationResult> {
-    const existing = await this.prisma.user.findUnique({
-      where: { email },
-    });
+    const existing = await this.repository.findUserByEmail(email);
     if (existing) {
       throw new ConflictException({ code: AuthErrorCode.EmailAlreadyRegistered });
     }
 
-    let user: User;
-    try {
-      user = await this.prisma.user.create({
-        data: {
-          id: randomUUID(),
-          email,
-          passwordHash: await bcrypt.hash(password, PASSWORD_HASH_ROUNDS),
-        },
-      });
-    } catch (error) {
-      if (isUniqueConstraintError(error)) {
-        throw new ConflictException({ code: AuthErrorCode.EmailAlreadyRegistered });
-      }
-      throw error;
+    const user = await this.repository.createUser({
+      id: randomUUID(),
+      email,
+      passwordHash: await bcrypt.hash(password, PASSWORD_HASH_ROUNDS),
+    });
+    if (!user) {
+      throw new ConflictException({ code: AuthErrorCode.EmailAlreadyRegistered });
     }
     return this.createSession(user);
   }
@@ -65,9 +55,7 @@ export class AuthService {
     email: string,
     password: string,
   ): Promise<AuthenticationResult> {
-    const user = await this.prisma.user.findUnique({
-      where: { email },
-    });
+    const user = await this.repository.findUserByEmail(email);
     const valid = await bcrypt.compare(
       password,
       user?.passwordHash ?? DUMMY_PASSWORD_HASH,
@@ -92,10 +80,7 @@ export class AuthService {
     if (payload.type !== 'refresh') {
       throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     }
-    const session = await this.prisma.session.findUnique({
-      where: { id: payload.sid },
-      include: { user: true },
-    });
+    const session = await this.repository.findSessionWithUser(payload.sid);
     if (
       !session ||
       session.userId !== payload.sub ||
@@ -103,7 +88,7 @@ export class AuthService {
       session.expiresAt <= new Date()
     ) {
       if (session && !session.revokedAt) {
-        await this.prisma.session.delete({ where: { id: session.id } });
+        await this.repository.deleteSession(session.id);
       }
       throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     }
@@ -124,18 +109,13 @@ export class AuthService {
       return;
     }
     if (payload.type !== 'refresh') return;
-    const session = await this.prisma.session.findUnique({
-      where: { id: payload.sid },
-    });
+    const session = await this.repository.findSession(payload.sid);
     if (
       session &&
       !session.revokedAt &&
       session.refreshTokenHash === this.hash(token)
     ) {
-      await this.prisma.session.update({
-        where: { id: session.id },
-        data: { revokedAt: new Date() },
-      });
+      await this.repository.revokeSession(session.id);
     }
   }
 
@@ -144,7 +124,7 @@ export class AuthService {
   }
 
   async userById(id: string): Promise<User> {
-    const user = await this.prisma.user.findUnique({ where: { id } });
+    const user = await this.repository.findUserById(id);
     if (!user) throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     return user;
   }
@@ -152,14 +132,7 @@ export class AuthService {
   private async createSession(
     user: User,
   ): Promise<AuthenticationResult> {
-    const session = await this.prisma.session.create({
-      data: {
-        id: randomUUID(),
-        userId: user.id,
-        refreshTokenHash: '',
-        expiresAt: new Date(),
-      },
-    });
+    const session = await this.repository.createSession(user.id, randomUUID());
     return this.rotateSession({ ...session, user });
   }
 
@@ -180,16 +153,8 @@ export class AuthService {
       refreshTokenHash: this.hash(refreshToken),
       expiresAt: new Date(Date.now() + REFRESH_TTL_MS),
     };
-    if (expectedRefreshTokenHash) {
-      const updated = await this.prisma.session.updateMany({
-        where: { id: session.id, refreshTokenHash: expectedRefreshTokenHash },
-        data,
-      });
-      if (updated.count !== EXPECTED_ROTATED_SESSIONS) {
-        throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
-      }
-    } else {
-      await this.prisma.session.update({ where: { id: session.id }, data });
+    if (!(await this.repository.rotateSession(session.id, data, expectedRefreshTokenHash))) {
+      throw new UnauthorizedException({ code: HttpErrorCode.Unauthorized });
     }
     return {
       user: this.toUser(session.user),
@@ -205,12 +170,3 @@ export class AuthService {
     return createHash('sha256').update(token).digest('hex');
   }
 }
-
-function isUniqueConstraintError(error: unknown): boolean {
-  return (
-    typeof error === 'object' &&
-    error !== null &&
-    'code' in error &&
-    isPrismaErrorCode(error.code, PrismaErrorCode.UniqueConstraint)
-  );
-}

src/modules/auth/auth.module.ts

@@ -5,6 +5,7 @@ import { PassportModule } from '@nestjs/passport';
 
 import { Environment } from '../../config/env.validation';
 import { AuthService } from './application/auth.service';
+import { AuthRepository } from './infrastructure/auth.repository';
 import { JwtStrategy } from './infrastructure/jwt.strategy';
 import { AuthController } from './presentation/auth.controller';
 import { JwtAuthGuard } from './presentation/jwt-auth.guard';
@@ -22,6 +23,6 @@ import { JwtAuthGuard } from './presentation/jwt-auth.guard';
   ],
   exports: [JwtAuthGuard],
   controllers: [AuthController],
-  providers: [AuthService, JwtStrategy, JwtAuthGuard],
+  providers: [AuthService, AuthRepository, JwtStrategy, JwtAuthGuard],
 })
 export class AuthModule {}

src/modules/auth/infrastructure/auth.repository.ts

@@ -0,0 +1,81 @@
+import { Injectable } from '@nestjs/common';
+
+import { isPrismaErrorCode, PrismaErrorCode } from '#src/prisma/prisma-error-code';
+import { PrismaService } from '#src/prisma/prisma.service';
+
+const EXPECTED_ROTATED_SESSIONS = 1;
+
+@Injectable()
+export class AuthRepository {
+  constructor(private readonly prisma: PrismaService) {}
+
+  findUserByEmail(email: string) {
+    return this.prisma.user.findUnique({ where: { email } });
+  }
+
+  async createUser(data: { email: string; id: string; passwordHash: string }) {
+    try {
+      return await this.prisma.user.create({ data });
+    } catch (error) {
+      if (isUniqueConstraintError(error)) return null;
+      throw error;
+    }
+  }
+
+  findUserById(id: string) {
+    return this.prisma.user.findUnique({ where: { id } });
+  }
+
+  findSessionWithUser(id: string) {
+    return this.prisma.session.findUnique({
+      where: { id },
+      include: { user: true },
+    });
+  }
+
+  findSession(id: string) {
+    return this.prisma.session.findUnique({ where: { id } });
+  }
+
+  deleteSession(id: string) {
+    return this.prisma.session.delete({ where: { id } });
+  }
+
+  revokeSession(id: string) {
+    return this.prisma.session.update({
+      where: { id },
+      data: { revokedAt: new Date() },
+    });
+  }
+
+  createSession(userId: string, id: string) {
+    return this.prisma.session.create({
+      data: { id, userId, refreshTokenHash: '', expiresAt: new Date() },
+    });
+  }
+
+  async rotateSession(
+    id: string,
+    data: { expiresAt: Date; refreshTokenHash: string },
+    expectedRefreshTokenHash?: string,
+  ): Promise<boolean> {
+    if (expectedRefreshTokenHash) {
+      const updated = await this.prisma.session.updateMany({
+        where: { id, refreshTokenHash: expectedRefreshTokenHash },
+        data,
+      });
+      return updated.count === EXPECTED_ROTATED_SESSIONS;
+    }
+    await this.prisma.session.update({ where: { id }, data });
+    return true;
+  }
+}
+
+function isUniqueConstraintError(error: unknown): boolean {
+  return (
+    typeof error === 'object' &&
+    error !== null &&
+    'code' in error &&
+    isPrismaErrorCode(error.code, PrismaErrorCode.UniqueConstraint)
+  );
+}

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

@@ -3,8 +3,9 @@ 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 { HttpErrorCode } from '#src/common/error-code';
+import { Environment } from '#src/config/env.validation';
+
 import { AccessPayload } from '../application/auth.types';
 
 @Injectable()

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

@@ -20,8 +20,9 @@ import {
   ApiTags,
 } from '@nestjs/swagger';
 
-import { ApiProblemResponses } from '../../../common/decorators/api-safe-error-response.decorator';
-import { HttpErrorCode } from '../../../common/error-code';
+import { ApiProblemResponses } from '#src/common/decorators/api-safe-error-response.decorator';
+import { HttpErrorCode } from '#src/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';

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

@@ -5,7 +5,8 @@ import {
 } from '@nestjs/common';
 import { createHash } from 'node:crypto';
 
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../common/time';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+
 import {
   MAX_CARD_NAME_LENGTH,
   MAX_OPERATION_DESCRIPTION_LENGTH,

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

@@ -1,7 +1,7 @@
 import { Injectable } from '@nestjs/common';
 
-import { BankCard, Prisma } from '../../../../../generated/prisma/client';
-import { PrismaService } from '../../../../prisma/prisma.service';
+import type { BankCard, Prisma } from '#generated/prisma/client';
+
 import { bankBalance } from '../domain/bank-card.calculations';
 import { rubMoney } from '../domain/rub-money';
 import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
@@ -20,24 +20,13 @@ import {
   missing,
 } from './bank-card-input';
 
-const EXPECTED_UPDATED_CARDS = 1;
-
 type Tx = Prisma.TransactionClient;
 @Injectable()
 export class BankCardsService {
-  constructor(
-    private readonly prisma: PrismaService,
-    private readonly repository: BankCardsRepository,
-  ) {}
+  constructor(private readonly repository: BankCardsRepository) {}
 
   private async cardView(tx: Tx, card: BankCard): Promise<BankCardDto> {
-    const rows = await tx.bankCardOperation.findMany({
-      where: {
-        userId: card.userId,
-        deletedAt: null,
-        OR: [{ cardId: card.id }, { targetCardId: card.id }],
-      },
-    });
+    const rows = await this.repository.cardOperations(tx, card);
     return {
       id: card.id,
       name: card.name,
@@ -53,20 +42,15 @@ export class BankCardsService {
   }
 
   list(userId: string, includeArchived = false) {
-    return this.prisma.$transaction(async (tx) =>
-      Promise.all(
-        (
-          await tx.bankCard.findMany({
-            where: { userId, ...(includeArchived ? {} : { archivedAt: null }) },
-            orderBy: [{ createdAt: 'asc' }, { id: 'asc' }],
-          })
-        ).map((card) => this.cardView(tx, card)),
-      ),
+    return this.repository.read(async (tx) =>
+      Promise.all((await this.repository.cards(tx, userId, includeArchived)).map(
+        (card) => this.cardView(tx, card),
+      )),
     );
   }
 
   get(userId: string, id: string) {
-    return this.prisma.$transaction(async (tx) =>
+    return this.repository.read(async (tx) =>
       this.cardView(tx, await this.repository.card(tx, userId, id)),
     );
   }
@@ -75,7 +59,7 @@ export class BankCardsService {
     const input = cardInput(dto),
       hash = fingerprint(input);
     return this.repository.write(async (tx) => {
-      const existing = await tx.bankCard.findUnique({ where: { id: dto.id } });
+      const existing = await this.repository.cardById(tx, dto.id);
       if (existing) {
         if (existing.userId !== userId) missing();
         // eslint-disable-next-line security/detect-possible-timing-attacks -- This compares an idempotency fingerprint after ownership validation, not a secret.
@@ -88,8 +72,11 @@ export class BankCardsService {
       await this.repository.seed(tx, userId);
       return this.cardView(
         tx,
-        await tx.bankCard.create({
-          data: { ...input, id: dto.id, userId, createFingerprint: hash },
+        await this.repository.createCard(tx, {
+          ...input,
+          id: dto.id,
+          userId,
+          createFingerprint: hash,
         }),
       );
     });
@@ -122,20 +109,16 @@ export class BankCardsService {
       }
       currentDate(input.openingDate);
       if (
-        await tx.bankCardOperation.findFirst({
-          where: {
-            userId,
-            deletedAt: null,
-            date: { lt: input.openingDate },
-            OR: [{ cardId: id }, { targetCardId: id }],
-          },
-        })
+        await this.repository.hasOperationsBefore(tx, userId, id, input.openingDate)
       ) {
         fail(BankErrorCode.OpeningDateConflict);
       }
-      const changed = await tx.bankCard.updateMany({
-        where: { id, userId, version: dto.version },
-        data: {
+      const updated = await this.repository.updateCard(
+        tx,
+        userId,
+        id,
+        dto.version,
+        {
           ...input,
           paymentSystem: input.paymentSystem ?? null,
           version: { increment: 1 },
@@ -147,9 +130,8 @@ export class BankCardsService {
                   : null,
               }),
         },
-      });
-      if (changed.count !== EXPECTED_UPDATED_CARDS) conflict();
-      return this.cardView(tx, await this.repository.card(tx, userId, id));
+      );
+      return this.cardView(tx, updated);
     });
   }
 }

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

@@ -1,12 +1,16 @@
 import { GoneException, Injectable } from '@nestjs/common';
 
-import {
+import type {
   BankCardOperation,
   Prisma,
-} from '../../../../../generated/prisma/client';
-import { PrismaService } from '../../../../prisma/prisma.service';
+} from '#generated/prisma/client';
+
 import { FIRST_PAGE } from '../domain/bank-card-limits';
 import { BankOperationKind } from '../domain/bank-operation-kind';
+import {
+  operationFieldConflict,
+  operationKindChanged,
+} from '../domain/bank-operation.rules';
 import { rubMoney, ZERO_KOPECKS } from '../domain/rub-money';
 import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
 import {
@@ -28,117 +32,22 @@ import {
   periodBounds,
 } from './bank-card-input';
 
-const EXPECTED_UPDATED_ROWS = 1;
-
 type Tx = Prisma.TransactionClient;
 @Injectable()
 export class BankOperationsService {
-  constructor(
-    private readonly prisma: PrismaService,
-    private readonly repository: BankCardsRepository,
-  ) {}
+  constructor(private readonly repository: BankCardsRepository) {}
 
   private async operationView(
     tx: Tx,
     row: BankCardOperation,
   ): Promise<BankOperationDto> {
-    const card = await this.repository.card(tx, row.userId, row.cardId);
-    const target = row.targetCardId
-      ? await this.repository.card(tx, row.userId, row.targetCardId)
-      : null;
-    const source = row.originalExpenseId
-      ? await this.repository.operation(tx, row.userId, row.originalExpenseId)
-      : null;
-    const categoryId = source?.categoryId ?? row.categoryId;
-    const category = categoryId
-      ? await tx.expenseCategory.findFirst({
-          where: { id: categoryId, userId: row.userId },
-        })
-      : null;
-    const refunds =
-      row.kind === BankOperationKind.Expense || source
-        ? await tx.bankCardOperation.findMany({
-            where: {
-              userId: row.userId,
-              originalExpenseId: source?.id ?? row.id,
-              deletedAt: null,
-              ...(source ? { id: { not: 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: category?.name ?? null,
-      originalExpenseId: row.originalExpenseId,
-      amount: rubMoney(row.amountKopecks),
-      availableRefund:
-        row.kind === BankOperationKind.Expense || source
-          ? rubMoney(
-              (source?.amountKopecks ?? row.amountKopecks) -
-              refunds.reduce((sum, r) => sum + r.amountKopecks, ZERO_KOPECKS),
-            )
-          : null,
-      date: row.date,
-      description: row.description,
-      version: row.version,
-      createdAt: row.createdAt.toISOString(),
-    };
+    return (await this.pageViews(tx, [row]))[0];
   }
 
   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 { cards, sources, categories, refunds } = await this.repository.operationViewData(tx, userId, rows);
     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]));
@@ -207,49 +116,28 @@ export class BankOperationsService {
         fail(BankErrorCode.InvalidDate);
       }
     }
-    if (
-      old &&
-      (old.kind !== input.kind ||
-        old.originalExpenseId !== input.originalExpenseId)
-    ) {
+    if (old && operationKindChanged(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 (operationFieldConflict(input)) fail();
     if (input.kind === BankOperationKind.Expense) {
-      if (input.originalExpenseId) fail();
       if (!input.categoryId) {
-        const category = await tx.expenseCategory.findUnique({
-          where: { userId_seedKey: { userId, seedKey: 'other' } },
-        });
+        const category = await this.repository.defaultCategory(tx, userId);
         if (!category) missing();
         input.categoryId = category.id;
       }
       if (
-        !(await tx.expenseCategory.findFirst({
-          where: { userId, id: input.categoryId },
-        }))
+        !(await this.repository.category(tx, userId, input.categoryId))
       ) {
         missing();
       }
-    } else if (input.categoryId) fail();
-    if (input.kind !== BankOperationKind.Refund && input.originalExpenseId) {
-      fail();
     }
     if (input.kind === BankOperationKind.Refund) {
-      if (!input.originalExpenseId) fail();
       const source = await this.repository.operation(
         tx,
         userId,
-        input.originalExpenseId,
+        input.originalExpenseId as string,
       );
       if (
         source.deletedAt ||
@@ -258,29 +146,11 @@ export class BankOperationsService {
       ) {
         fail(BankErrorCode.InvalidRefund);
       }
-      if (
-        (
-          await tx.bankCardOperation.updateMany({
-            where: {
-              id: source.id,
-              userId,
-              version: source.version,
-              deletedAt: null,
-            },
-            data: { version: { increment: 1 } },
-          })
-        ).count !== EXPECTED_UPDATED_ROWS
-      ) {
-        conflict();
-      }
-      const refunds = await tx.bankCardOperation.findMany({
-        where: {
-          userId,
-          originalExpenseId: source.id,
-          deletedAt: null,
-          ...(old ? { id: { not: old.id } } : {}),
-        },
-      });
+      await this.repository.updateOperation(tx,
+        { id: source.id, userId, version: source.version, deletedAt: null },
+        { version: { increment: 1 } },
+      );
+      const refunds = await this.repository.refunds(tx, userId, source.id, old?.id);
       if (input.date < source.date) fail(BankErrorCode.InvalidDate);
       if (
         refunds.reduce((sum, r) => sum + r.amountKopecks, ZERO_KOPECKS) +
@@ -291,9 +161,7 @@ export class BankOperationsService {
       }
     }
     if (old?.kind === BankOperationKind.Expense) {
-      const refunds = await tx.bankCardOperation.findMany({
-        where: { userId, originalExpenseId: old.id, deletedAt: null },
-      });
+      const refunds = await this.repository.refunds(tx, userId, old.id);
       if (
         refunds.length &&
         (input.cardId !== old.cardId ||
@@ -310,9 +178,7 @@ export class BankOperationsService {
     const normalized = operationInput(dto),
       hash = fingerprint(normalized);
     return this.repository.write(async (tx) => {
-      const existing = await tx.bankCardOperation.findUnique({
-        where: { id: dto.id },
-      });
+      const existing = await this.repository.operationById(tx, dto.id);
       if (existing) {
         if (existing.userId !== userId) missing();
         // eslint-disable-next-line security/detect-possible-timing-attacks -- This compares an idempotency fingerprint after ownership validation, not a secret.
@@ -328,15 +194,15 @@ export class BankOperationsService {
       await this.validateOperation(tx, userId, input);
       return this.operationView(
         tx,
-        await tx.bankCardOperation.create({
-          data: { ...input, id: dto.id, userId, createFingerprint: hash },
+        await this.repository.createOperation(tx, {
+          ...input, id: dto.id, userId, createFingerprint: hash,
         }),
       );
     });
   }
 
   getOperation(userId: string, id: string) {
-    return this.prisma.$transaction(async (tx) => {
+    return this.repository.read(async (tx) => {
       const row = await this.repository.operation(tx, userId, id);
       if (row.deletedAt) missing();
       return this.operationView(tx, row);
@@ -361,16 +227,10 @@ export class BankOperationsService {
         description: dto.description ?? old.description ?? undefined,
       });
       await this.validateOperation(tx, userId, input, old);
-      if (
-        (
-          await tx.bankCardOperation.updateMany({
-            where: { id, userId, version: dto.version, deletedAt: null },
-            data: { ...input, version: { increment: 1 } },
-          })
-        ).count !== EXPECTED_UPDATED_ROWS
-      ) {
-        conflict();
-      }
+      await this.repository.updateOperation(tx,
+        { id, userId, version: dto.version, deletedAt: null },
+        { ...input, version: { increment: 1 } },
+      );
       return this.operationView(
         tx,
         await this.repository.operation(tx, userId, id),
@@ -389,9 +249,7 @@ export class BankOperationsService {
       }
       if (
         row.kind === BankOperationKind.Expense &&
-        (await tx.bankCardOperation.findFirst({
-          where: { userId, originalExpenseId: id, deletedAt: null },
-        }))
+        (await this.repository.dependentRefund(tx, userId, id))
       ) {
         conflict(BankErrorCode.DependentRefunds);
       }
@@ -401,27 +259,15 @@ export class BankOperationsService {
           userId,
           row.originalExpenseId,
         );
-        if (
-          (
-            await tx.bankCardOperation.updateMany({
-              where: { id: source.id, userId, version: source.version },
-              data: { version: { increment: 1 } },
-            })
-          ).count !== EXPECTED_UPDATED_ROWS
-        ) {
-          conflict();
-        }
-      }
-      if (
-        (
-          await tx.bankCardOperation.updateMany({
-            where: { id, userId, version, deletedAt: null },
-            data: { deletedAt: new Date(), version: { increment: 1 } },
-          })
-        ).count !== EXPECTED_UPDATED_ROWS
-      ) {
-        conflict();
+        await this.repository.updateOperation(tx,
+          { id: source.id, userId, version: source.version },
+          { version: { increment: 1 } },
+        );
       }
+      await this.repository.updateOperation(tx,
+        { id, userId, version, deletedAt: null },
+        { deletedAt: new Date(), version: { increment: 1 } },
+      );
     });
   }
 
@@ -434,25 +280,13 @@ export class BankOperationsService {
     const period = expenses
       ? undefined
       : periodBounds(query as BankOperationsQueryDto);
-    return this.prisma.$transaction(async (tx) => {
+    return this.repository.read(async (tx) => {
       await this.repository.card(tx, userId, id);
       const limit = query.limit ?? DEFAULT_BANK_PAGE_SIZE,
         page = query.page ?? FIRST_PAGE;
-      const where: Prisma.BankCardOperationWhereInput = {
-        userId,
-        deletedAt: null,
-        OR: [{ cardId: id }, { targetCardId: id }],
-        ...(period
-          ? { date: { gte: period.from, lte: period.to } }
-          : { kind: BankOperationKind.Expense }),
-      };
-      const total = await tx.bankCardOperation.count({ where });
-      const rows = await tx.bankCardOperation.findMany({
-        where,
-        orderBy: [{ date: 'desc' }, { createdAt: 'desc' }, { id: 'desc' }],
-        skip: (page - FIRST_PAGE) * limit,
-        take: limit,
-      });
+      const { total, rows } = await this.repository.operationPage(
+        tx, userId, id, period, limit, page,
+      );
       return {
         items: await this.pageViews(tx, rows),
         total,

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

@@ -1,81 +1,24 @@
 import { Injectable } from '@nestjs/common';
-import { randomUUID } from 'node:crypto';
 
-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;
+import { name } from './bank-card-input';
 
 @Injectable()
 export class ExpenseCategoriesService {
-  constructor(
-    private readonly prisma: PrismaService,
-    private readonly repository: BankCardsRepository,
-  ) {}
+  constructor(private readonly repository: BankCardsRepository) {}
 
   async categories(userId: string) {
-    return (
-      await this.prisma.expenseCategory.findMany({
-        where: { userId },
-        orderBy: [{ name: 'asc' }, { id: 'asc' }],
-      })
-    ).map(({ id, name, seedKey, version }) => ({
-      id,
-      name,
-      isDefault: seedKey === 'other',
-      version,
-    }));
+    return this.repository.categories(userId);
   }
 
   createCategory(userId: string, value: string) {
     const label = name(value, MAX_CATEGORY_NAME_LENGTH);
-    return this.repository.write(async (tx) => {
-      await this.repository.seed(tx, userId);
-      const row = await tx.expenseCategory.create({
-        data: {
-          id: randomUUID(),
-          userId,
-          name: label,
-          nameKey: label.toLocaleLowerCase('ru-RU'),
-        },
-      });
-      return {
-        id: row.id,
-        name: row.name,
-        isDefault: false,
-        version: row.version,
-      };
-    });
+    return this.repository.createCategory(userId, label);
   }
 
   updateCategory(userId: string, id: string, value: string, version: number) {
     const label = name(value, MAX_CATEGORY_NAME_LENGTH);
-    return this.repository.write(async (tx) => {
-      const row = await tx.expenseCategory.findFirst({ where: { id, userId } });
-      if (!row) missing();
-      if (
-        (
-          await tx.expenseCategory.updateMany({
-            where: { id, userId, version },
-            data: {
-              name: label,
-              nameKey: label.toLocaleLowerCase('ru-RU'),
-              version: { increment: 1 },
-            },
-          })
-        ).count !== EXPECTED_UPDATED_CATEGORIES
-      ) {
-        conflict();
-      }
-      return {
-        id,
-        name: label,
-        isDefault: row.seedKey === 'other',
-        version: version + VERSION_INCREMENT,
-      };
-    });
+    return this.repository.updateCategory(userId, id, label, version);
   }
 }

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

@@ -1,8 +1,9 @@
-jest.mock('../../../../prisma/prisma.service', () => ({
+jest.mock('#src/prisma/prisma.service', () => ({
   PrismaService: class {},
 }));
-jest.mock('../../../../../generated/prisma/client', () => ({ Prisma: {} }));
-import { PrismaService } from '../../../../prisma/prisma.service';
+jest.mock('#generated/prisma/client', () => ({ Prisma: {} }));
+import { PrismaService } from '#src/prisma/prisma.service';
+
 import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
 import { GetBankSummaryUseCase } from './get-bank-summary.use-case';
 

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

@@ -1,4 +1,5 @@
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../common/time';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+
 import { BankOperationKind } from './bank-operation-kind';
 import { ZERO_KOPECKS } from './rub-money';
 

src/modules/banking/bank-cards/domain/bank-operation.rules.spec.ts

@@ -0,0 +1,141 @@
+import { BankOperationKind } from './bank-operation-kind';
+import {
+  operationFieldConflict,
+  OperationFieldRule,
+  operationKindChanged,
+} from './bank-operation.rules';
+
+const cardId = 'card-1';
+
+function fields(
+  overrides: Partial<Parameters<typeof operationFieldConflict>[0]> = {},
+) {
+  return { kind: BankOperationKind.Topup, cardId, ...overrides };
+}
+
+describe('operationFieldConflict', () => {
+  it('allows a valid topup', () => {
+    expect(operationFieldConflict(fields())).toBeNull();
+  });
+
+  it('rejects a topup with a purchase link', () => {
+    expect(
+      operationFieldConflict(
+        fields({ originalExpenseId: 'op-1' }),
+      ),
+    ).toBe(OperationFieldRule.InvalidCombination);
+  });
+
+  it('rejects a non-transfer with a target card', () => {
+    expect(
+      operationFieldConflict(fields({ targetCardId: 'card-2' })),
+    ).toBe(OperationFieldRule.InvalidCombination);
+  });
+
+  describe('expense', () => {
+    it('allows the default category to be resolved by the service', () => {
+      expect(
+        operationFieldConflict(
+          fields({ kind: BankOperationKind.Expense }),
+        ),
+      ).toBeNull();
+    });
+
+    it('rejects a purchase link', () => {
+      expect(
+        operationFieldConflict(
+          fields({
+            kind: BankOperationKind.Expense,
+            categoryId: 'cat-1',
+            originalExpenseId: 'op-1',
+          }),
+        ),
+      ).toBe(OperationFieldRule.InvalidCombination);
+    });
+
+    it('allows a plain categorized expense', () => {
+      expect(
+        operationFieldConflict(
+          fields({ kind: BankOperationKind.Expense, categoryId: 'cat-1' }),
+        ),
+      ).toBeNull();
+    });
+  });
+
+  describe('transfer', () => {
+    it('requires a target card', () => {
+      expect(
+        operationFieldConflict(fields({ kind: BankOperationKind.Transfer })),
+      ).toBe(OperationFieldRule.MissingTargetCard);
+    });
+
+    it('rejects a transfer to the same card', () => {
+      expect(
+        operationFieldConflict(
+          fields({
+            kind: BankOperationKind.Transfer,
+            targetCardId: cardId,
+          }),
+        ),
+      ).toBe(OperationFieldRule.SameTargetCard);
+    });
+
+    it('rejects a transfer with a category or purchase link', () => {
+      expect(
+        operationFieldConflict(
+          fields({
+            kind: BankOperationKind.Transfer,
+            targetCardId: 'card-2',
+            categoryId: 'cat-1',
+          }),
+        ),
+      ).toBe(OperationFieldRule.InvalidCombination);
+      expect(
+        operationFieldConflict(
+          fields({
+            kind: BankOperationKind.Transfer,
+            targetCardId: 'card-2',
+            originalExpenseId: 'op-1',
+          }),
+        ),
+      ).toBe(OperationFieldRule.InvalidCombination);
+    });
+  });
+
+  describe('refund', () => {
+    it('requires a purchase link', () => {
+      expect(
+        operationFieldConflict(fields({ kind: BankOperationKind.Refund })),
+      ).toBe(OperationFieldRule.MissingOriginalExpense);
+    });
+
+    it('rejects a category', () => {
+      expect(
+        operationFieldConflict(
+          fields({
+            kind: BankOperationKind.Refund,
+            originalExpenseId: 'op-1',
+            categoryId: 'cat-1',
+          }),
+        ),
+      ).toBe(OperationFieldRule.InvalidCombination);
+    });
+
+    it('allows a linked refund', () => {
+      expect(
+        operationFieldConflict(
+          fields({ kind: BankOperationKind.Refund, originalExpenseId: 'op-1' }),
+        ),
+      ).toBeNull();
+    });
+  });
+});
+
+describe('operationKindChanged', () => {
+  it('flags kind and purchase link changes', () => {
+    expect(operationKindChanged('expense', 'expense', 'op-1', 'op-1')).toBe(false);
+    expect(operationKindChanged('expense', 'refund', null, null)).toBe(true);
+    expect(operationKindChanged('refund', 'refund', 'op-1', null)).toBe(true);
+    expect(operationKindChanged('refund', 'refund', null, 'op-1')).toBe(true);
+  });
+});

src/modules/banking/bank-cards/domain/bank-operation.rules.ts

@@ -0,0 +1,79 @@
+import { BankOperationKind } from './bank-operation-kind';
+
+export type OperationFields = {
+  cardId: string;
+  categoryId?: null | string;
+  kind: BankOperationKind;
+  originalExpenseId?: null | string;
+  targetCardId?: null | string;
+};
+
+export enum OperationFieldRule {
+  InvalidCombination = 'invalidCombination',
+  MissingOriginalExpense = 'missingOriginalExpense',
+  MissingTargetCard = 'missingTargetCard',
+  SameTargetCard = 'sameTargetCard',
+}
+
+function transferConflict(fields: OperationFields): null | OperationFieldRule {
+  if (!fields.targetCardId) {
+    return OperationFieldRule.MissingTargetCard;
+  }
+  if (fields.targetCardId === fields.cardId) {
+    return OperationFieldRule.SameTargetCard;
+  }
+  if (fields.categoryId || fields.originalExpenseId) {
+    return OperationFieldRule.InvalidCombination;
+  }
+  return null;
+}
+
+function expenseConflict(fields: OperationFields): null | OperationFieldRule {
+  if (fields.originalExpenseId) {
+    return OperationFieldRule.InvalidCombination;
+  }
+  // Expense without a category uses the user's default category in the service.
+  return null;
+}
+
+function refundConflict(fields: OperationFields): null | OperationFieldRule {
+  return fields.originalExpenseId
+    ? null
+    : OperationFieldRule.MissingOriginalExpense;
+}
+
+/**
+ * Pure kind/field compatibility rules for bank operations; no Prisma or Nest.
+ * Returns the first violated rule, or null when the combination is allowed.
+ */
+export function operationFieldConflict(
+  fields: OperationFields,
+): null | OperationFieldRule {
+  if (fields.kind === BankOperationKind.Transfer) {
+    return transferConflict(fields);
+  }
+  if (fields.targetCardId) return OperationFieldRule.InvalidCombination;
+  if (fields.kind === BankOperationKind.Expense) {
+    return expenseConflict(fields);
+  }
+  if (fields.categoryId) return OperationFieldRule.InvalidCombination;
+  if (fields.kind === BankOperationKind.Refund) {
+    return refundConflict(fields);
+  }
+  // Topup: no target, no category, no purchase link.
+  return fields.originalExpenseId
+    ? OperationFieldRule.InvalidCombination
+    : null;
+}
+
+export function operationKindChanged(
+  oldKind: string,
+  newKind: string,
+  oldOriginalExpenseId: null | string,
+  newOriginalExpenseId: null | string,
+): boolean {
+  return (
+    oldKind !== newKind ||
+    oldOriginalExpenseId !== newOriginalExpenseId
+  );
+}

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

@@ -1,6 +1,6 @@
-import type { Money } from '../../../../common/money.types';
+import type { Money } from '#src/common/money.types';
 
-import { DECIMAL_RADIX, decimalFromString, formatDecimal } from '../../../../common/decimal';
+import { DECIMAL_RADIX, decimalFromString, formatDecimal } from '#src/common/decimal';
 
 export const ZERO_KOPECKS = 0n;
 

src/modules/banking/bank-cards/infrastructure/bank-cards.repository.ts

@@ -1,18 +1,24 @@
 import { Injectable } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
 
-import { Prisma } from '../../../../../generated/prisma/client';
-import { isPrismaErrorCode, PrismaErrorCode } from '../../../../prisma/prisma-error-code';
-import { PrismaService } from '../../../../prisma/prisma.service';
+import { BankCard, BankCardOperation, Prisma } from '#generated/prisma/client';
+import { isPrismaErrorCode, PrismaErrorCode } from '#src/prisma/prisma-error-code';
+import { PrismaService } from '#src/prisma/prisma.service';
+
 import {
   BankErrorCode,
   conflict,
   missing,
 } from '../application/bank-card-input';
+import { FIRST_PAGE } from '../domain/bank-card-limits';
 import { BankOperationKind } from '../domain/bank-operation-kind';
 
 const INITIAL_RETRY_COUNT = 0;
 const LAST_SEED_OFFSET = 1;
+const EXPECTED_UPDATED_CARDS = 1;
+const EXPECTED_UPDATED_OPERATIONS = 1;
+const EXPECTED_UPDATED_CATEGORIES = 1;
+const VERSION_INCREMENT = 1;
 
 type Tx = Prisma.TransactionClient;
 const TRANSACTION_MAX_WAIT_MS = 10_000;
@@ -32,6 +38,220 @@ const seeds = [
 @Injectable()
 export class BankCardsRepository {
   constructor(private readonly prisma: PrismaService) {}
+
+  read<T>(run: (tx: Tx) => Promise<T>): Promise<T> {
+    return this.prisma.$transaction(run);
+  }
+
+  cards(tx: Tx, userId: string, includeArchived = false) {
+    return tx.bankCard.findMany({
+      where: { userId, ...(includeArchived ? {} : { archivedAt: null }) },
+      orderBy: [{ createdAt: 'asc' }, { id: 'asc' }],
+    });
+  }
+
+  cardOperations(tx: Tx, card: BankCard) {
+    return tx.bankCardOperation.findMany({
+      where: {
+        userId: card.userId,
+        deletedAt: null,
+        OR: [{ cardId: card.id }, { targetCardId: card.id }],
+      },
+    });
+  }
+
+  operationById(tx: Tx, id: string) {
+    return tx.bankCardOperation.findUnique({ where: { id } });
+  }
+
+  createOperation(tx: Tx, data: Prisma.BankCardOperationUncheckedCreateInput) {
+    return tx.bankCardOperation.create({ data });
+  }
+
+  async updateOperation(
+    tx: Tx,
+    where: Prisma.BankCardOperationWhereInput,
+    data: Prisma.BankCardOperationUpdateManyMutationInput,
+  ) {
+    const result = await tx.bankCardOperation.updateMany({ where, data });
+    if (result.count !== EXPECTED_UPDATED_OPERATIONS) conflict();
+  }
+
+  category(tx: Tx, userId: string, id: string) {
+    return tx.expenseCategory.findFirst({ where: { id, userId } });
+  }
+
+  defaultCategory(tx: Tx, userId: string) {
+    return tx.expenseCategory.findUnique({
+      where: { userId_seedKey: { userId, seedKey: 'other' } },
+    });
+  }
+
+  refunds(tx: Tx, userId: string, originalExpenseId: string, excludeId?: string) {
+    return tx.bankCardOperation.findMany({
+      where: {
+        userId,
+        originalExpenseId,
+        deletedAt: null,
+        ...(excludeId ? { id: { not: excludeId } } : {}),
+      },
+    });
+  }
+
+  dependentRefund(tx: Tx, userId: string, originalExpenseId: string) {
+    return tx.bankCardOperation.findFirst({
+      where: { userId, originalExpenseId, deletedAt: null },
+    });
+  }
+
+  async operationViewData(tx: Tx, userId: string, rows: BankCardOperation[]) {
+    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 },
+      }),
+    ]);
+    return { cards, sources, categories, refunds };
+  }
+
+  async operationPage(
+    tx: Tx,
+    userId: string,
+    id: string,
+    period: undefined | { from: string; to: string },
+    limit: number,
+    page: number,
+  ) {
+    const where: Prisma.BankCardOperationWhereInput = {
+      userId,
+      deletedAt: null,
+      OR: [{ cardId: id }, { targetCardId: id }],
+      ...(period
+        ? { date: { gte: period.from, lte: period.to } }
+        : { kind: BankOperationKind.Expense }),
+    };
+    const total = await tx.bankCardOperation.count({ where });
+    const rows = await tx.bankCardOperation.findMany({
+      where,
+      orderBy: [{ date: 'desc' }, { createdAt: 'desc' }, { id: 'desc' }],
+      skip: (page - FIRST_PAGE) * limit,
+      take: limit,
+    });
+    return { total, rows };
+  }
+
+  cardById(tx: Tx, id: string) {
+    return tx.bankCard.findUnique({ where: { id } });
+  }
+
+  createCard(tx: Tx, data: Prisma.BankCardUncheckedCreateInput) {
+    return tx.bankCard.create({ data });
+  }
+
+  async updateCard(
+    tx: Tx,
+    userId: string,
+    id: string,
+    version: number,
+    data: Prisma.BankCardUpdateManyMutationInput,
+  ) {
+    const changed = await tx.bankCard.updateMany({
+      where: { id, userId, version },
+      data,
+    });
+    if (changed.count !== EXPECTED_UPDATED_CARDS) conflict();
+    return this.card(tx, userId, id);
+  }
+
+  hasOperationsBefore(tx: Tx, userId: string, id: string, openingDate: string) {
+    return tx.bankCardOperation.findFirst({
+      where: {
+        userId,
+        deletedAt: null,
+        date: { lt: openingDate },
+        OR: [{ cardId: id }, { targetCardId: id }],
+      },
+    });
+  }
+
+  async categories(userId: string) {
+    return (
+      await this.prisma.expenseCategory.findMany({
+        where: { userId },
+        orderBy: [{ name: 'asc' }, { id: 'asc' }],
+      })
+    ).map(({ id, name, seedKey, version }) => ({
+      id,
+      name,
+      isDefault: seedKey === 'other',
+      version,
+    }));
+  }
+
+  createCategory(userId: string, label: string) {
+    return this.write(async (tx) => {
+      await this.seed(tx, userId);
+      const row = await tx.expenseCategory.create({
+        data: {
+          id: randomUUID(),
+          userId,
+          name: label,
+          nameKey: label.toLocaleLowerCase('ru-RU'),
+        },
+      });
+      return {
+        id: row.id,
+        name: row.name,
+        isDefault: false,
+        version: row.version,
+      };
+    });
+  }
+
+  updateCategory(userId: string, id: string, label: string, version: number) {
+    return this.write(async (tx) => {
+      const row = await tx.expenseCategory.findFirst({ where: { id, userId } });
+      if (!row) missing();
+      if (
+        (
+          await tx.expenseCategory.updateMany({
+            where: { id, userId, version },
+            data: {
+              name: label,
+              nameKey: label.toLocaleLowerCase('ru-RU'),
+              version: { increment: 1 },
+            },
+          })
+        ).count !== EXPECTED_UPDATED_CATEGORIES
+      ) {
+        conflict();
+      }
+      return {
+        id,
+        name: label,
+        isDefault: row.seedKey === 'other',
+        version: version + VERSION_INCREMENT,
+      };
+    });
+  }
+
   async write<T>(run: (tx: Tx) => Promise<T>): Promise<T> {
     for (let attempt = INITIAL_RETRY_COUNT; ; attempt++) {
       try {

src/modules/banking/bank-cards/presentation/bank-card.dto.ts

@@ -24,7 +24,8 @@ import {
   ValidateNested,
 } from 'class-validator';
 
-import { MoneyDto } from '../../../../common/money.dto';
+import { MoneyDto } from '#src/common/money.dto';
+
 import {
   FIRST_PAGE,
   MAX_CARD_NAME_LENGTH,

src/modules/banking/bank-cards/presentation/bank-cards.controller.ts

@@ -29,8 +29,9 @@ import {
 import {
   ApiProblemResponses,
   ProblemDetailsDto,
-} from '../../../../common/decorators/api-safe-error-response.decorator';
-import { AccessPayload, JwtAuthGuard } from '../../../auth/auth.api';
+} from '#src/common/decorators/api-safe-error-response.decorator';
+import { AccessPayload, JwtAuthGuard } from '#src/modules/auth/auth.api';
+
 import { BankCardsService } from '../application/bank-cards.service';
 import { BankOperationsService } from '../application/bank-operations.service';
 import { ExpenseCategoriesService } from '../application/expense-categories.service';

src/modules/investments/brokerage-accounts/brokerage-account.dto.ts

@@ -1,14 +1,12 @@
 import { ApiProperty } from '@nestjs/swagger';
 
-import { MoneyDto } from '../../../common/money.dto';
+import { MoneyDto } from '#src/common/money.dto';
+
 import { InvestmentResourceMetaDto } from '../investment-resource.dto';
 import { PortfolioStructureDto } from '../portfolio/portfolio.api';
 import { HourlySyncStatusDto } from '../tbank-sync/tbank-sync.dto';
 
 export class UnrealizedReturnDto {
-  @ApiProperty()
-  declare currency: string;
-
   @ApiProperty({ example: '12.345678901' })
   declare absolute: string;
 
@@ -23,17 +21,17 @@ export class UnrealizedReturnDto {
 }
 
 export class PortfolioSummaryDto {
-  @ApiProperty({ type: MoneyDto, isArray: true })
-  declare totalsByCurrency: MoneyDto[];
+  @ApiProperty({ type: MoneyDto })
+  declare totals: MoneyDto;
 
-  @ApiProperty({ type: MoneyDto, isArray: true })
-  declare cashBalances: MoneyDto[];
+  @ApiProperty({ type: MoneyDto })
+  declare cash: MoneyDto;
 
   @ApiProperty({ type: PortfolioStructureDto })
   declare structure: PortfolioStructureDto;
 
-  @ApiProperty({ type: UnrealizedReturnDto, isArray: true })
-  declare unrealizedReturnByCurrency: UnrealizedReturnDto[];
+  @ApiProperty({ type: UnrealizedReturnDto })
+  declare unrealizedReturn: UnrealizedReturnDto;
 
   @ApiProperty({
     type: 'integer',

src/modules/investments/brokerage-accounts/brokerage-accounts.controller.ts

@@ -3,7 +3,8 @@ import type { Request } from 'express';
 import { Controller, Get, Req, UseGuards } from '@nestjs/common';
 import { ApiBearerAuth, ApiOkResponse, ApiTags } from '@nestjs/swagger';
 
-import { ApiProblemResponses } from '../../../common/decorators/api-safe-error-response.decorator';
+import { ApiProblemResponses } from '#src/common/decorators/api-safe-error-response.decorator';
+
 import { AccessPayload, JwtAuthGuard } from '../../auth/auth.api';
 import { BrokerageAccountsResourceDto } from './brokerage-account.dto';
 import { BrokerageAccountsService } from './brokerage-accounts.service';

src/modules/investments/brokerage-accounts/brokerage-accounts.module.ts

@@ -1,6 +1,7 @@
 import { Module } from '@nestjs/common';
 
-import { TbankModule } from '../../../integrations/tbank/tbank.module';
+import { TbankModule } from '#src/integrations/tbank/tbank.module';
+
 import { AuthModule } from '../../auth/auth.module';
 import { PortfolioModule } from '../portfolio/portfolio.module';
 import { TbankSyncRepositoryModule } from '../tbank-sync/tbank-sync-repository.module';

src/modules/investments/brokerage-accounts/brokerage-accounts.service.spec.ts

@@ -1,4 +1,4 @@
-jest.mock('../../../prisma/prisma.service', () => ({
+jest.mock('#src/prisma/prisma.service', () => ({
   PrismaService: class {},
 }));
 import { investmentResourceMeta } from '../investment-resource.mapper';
@@ -33,7 +33,7 @@ describe('saved brokerage account projection', () => {
   });
 
   it('keeps exact saved totals and independent missing summaries', async () => {
-    const structure = { currencies: [], unvaluedCategories: [] };
+    const structure = { totalValue: '0', hasNegativeValues: false, categories: [], unvaluedCategories: [] };
     portfolio.saved.mockResolvedValue({
       membership: meta,
       accounts: [
@@ -44,11 +44,9 @@ describe('saved brokerage account projection', () => {
           openedOn: null,
           meta,
           snapshot: {
-            cashBalances: [{ currency: 'RUB', value: '10.000000001' }],
+            cash: { currency: 'RUB', value: '10.000000001' },
             structure,
-            totalsByCurrency: [
-              { currency: 'RUB', value: '100000000.000000001' },
-            ],
+            totals: { currency: 'RUB', value: '100000000.000000001' },
             positions: [{ type: 'STOCK', quantity: '1' }, { type: 'BOND', quantity: '2' }],
           },
         },
@@ -64,14 +62,14 @@ describe('saved brokerage account projection', () => {
     });
     const response = await service.list('owner');
     expect(response.data?.[0].portfolioSummary).toEqual({
-      cashBalances: [{ currency: 'RUB', value: '10.000000001' }],
+      cash: { currency: 'RUB', value: '10.000000001' },
       structure,
-      totalsByCurrency: [{ currency: 'RUB', value: '100000000.000000001' }],
+      totals: { currency: 'RUB', value: '100000000.000000001' },
       stockPositionCount: 1,
       bondPositionCount: 1,
       fundPositionCount: 0,
       totalPositionCount: 2,
-      unrealizedReturnByCurrency: [],
+      unrealizedReturn: { absolute: '0', costBasis: '0', percent: null, partial: false },
     });
     expect(response.data?.[1].portfolioSummary).toBeNull();
     expect(response.meta.availability).toBe('available');
@@ -79,74 +77,65 @@ describe('saved brokerage account projection', () => {
   });
 
   it('returns an empty summary from an empty saved portfolio', async () => {
-    const structure = { currencies: [], unvaluedPositions: [], unknownValues: [] };
+    const structure = { totalValue: '0', hasNegativeValues: false, categories: [], unvaluedCategories: [] };
     portfolio.saved.mockResolvedValueOnce({
       membership: meta,
       accounts: [{
         id: 'empty', name: 'Empty', type: 'BROKERAGE', openedOn: null, meta,
-        snapshot: { cashBalances: [], structure, totalsByCurrency: [], positions: [] },
+        snapshot: { cash: { currency: 'RUB', value: '0' }, structure, totals: { currency: 'RUB', value: '0' }, positions: [] },
       }],
     });
 
     expect((await service.list('owner')).data?.[0].portfolioSummary).toEqual({
-      cashBalances: [], structure, totalsByCurrency: [],
+      cash: { currency: 'RUB', value: '0' }, structure, totals: { currency: 'RUB', value: '0' },
       stockPositionCount: 0, bondPositionCount: 0,
       fundPositionCount: 0, totalPositionCount: 0,
-      unrealizedReturnByCurrency: [],
+      unrealizedReturn: { absolute: '0', costBasis: '0', percent: null, partial: false },
     });
   });
 
-  it('calculates exact returns by currency, partial data, and zero cost basis', async () => {
+  it('calculates exact returns, partial data, and zero cost basis', async () => {
     portfolio.saved.mockResolvedValueOnce({
       membership: meta,
       accounts: [{
         id: 'a', name: 'A', type: 'BROKERAGE', openedOn: null, meta,
         snapshot: {
-          cashBalances: [], structure: {}, totalsByCurrency: [
-            { currency: 'RUB', value: '100' }, { currency: 'USD', value: '20' },
-          ],
+          cash: { currency: 'RUB', value: '0' }, structure: {}, totals: { currency: 'RUB', value: '100' },
           positions: [
             { type: 'STOCK', quantity: '2', averagePurchasePrice: { currency: 'RUB', value: '10.000000001' }, absoluteReturn: { currency: 'RUB', value: '0.000000003' } },
             { type: 'BOND', quantity: '0.5', averagePurchasePrice: { currency: 'RUB', value: '20' }, absoluteReturn: { currency: 'RUB', value: '1.25' } },
-            { type: 'FUND', quantity: '3', averagePurchasePrice: { currency: 'USD', value: '2.5' }, absoluteReturn: null },
-            { type: 'STOCK', quantity: '4', averagePurchasePrice: { currency: 'USD', value: '0' }, absoluteReturn: { currency: 'USD', value: '2.5' } },
-            { type: 'CURRENCY', quantity: '100', averagePurchasePrice: { currency: 'EUR', value: '1' }, absoluteReturn: { currency: 'EUR', value: '5' } },
-            { type: 'BOND', quantity: '1', currentValue: { currency: 'CNY', value: '7' }, averagePurchasePrice: null, absoluteReturn: null },
+            { type: 'FUND', quantity: '3', averagePurchasePrice: { currency: 'RUB', value: '2.5' }, absoluteReturn: null },
+            { type: 'BOND', quantity: '1', currentValue: { currency: 'RUB', value: '7' }, averagePurchasePrice: null, absoluteReturn: null },
           ],
         },
       }],
     });
 
     expect((await service.list('owner')).data?.[0].portfolioSummary).toMatchObject({
-      stockPositionCount: 2, bondPositionCount: 2,
-      fundPositionCount: 1, totalPositionCount: 6,
-      unrealizedReturnByCurrency: [
-        { currency: 'CNY', absolute: '0', costBasis: '0', percent: null, partial: true },
-        { currency: 'RUB', absolute: '1.250000003', costBasis: '30.000000002', percent: '4.17', partial: false },
-        { currency: 'USD', absolute: '2.5', costBasis: '0', percent: null, partial: true },
-      ],
+      stockPositionCount: 1, bondPositionCount: 2,
+      fundPositionCount: 1, totalPositionCount: 4,
+      unrealizedReturn: { absolute: '1.250000003', costBasis: '30.000000002', percent: '4.17', partial: true },
     });
   });
 
-  it('omits return percent for a currency with short positions', async () => {
+  it('omits return percent for short positions', async () => {
     portfolio.saved.mockResolvedValueOnce({
       membership: meta,
       accounts: [{
         id: 'a', name: 'A', type: 'BROKERAGE', openedOn: null, meta,
         snapshot: {
-          cashBalances: [], structure: {}, totalsByCurrency: [],
+          cash: { currency: 'RUB', value: '0' }, structure: {}, totals: { currency: 'RUB', value: '0' },
           positions: [
             { type: 'STOCK', quantity: '-2', averagePurchasePrice: { currency: 'RUB', value: '100' }, absoluteReturn: { currency: 'RUB', value: '-20' } },
-            { type: 'STOCK', quantity: '1', averagePurchasePrice: { currency: 'USD', value: '10' }, absoluteReturn: { currency: 'USD', value: '1' } },
+            { type: 'STOCK', quantity: '1', averagePurchasePrice: { currency: 'RUB', value: '10' }, absoluteReturn: { currency: 'RUB', value: '1' } },
           ],
         },
       }],
     });
 
-    expect((await service.list('owner')).data?.[0]?.portfolioSummary?.unrealizedReturnByCurrency).toEqual([
-      { currency: 'RUB', absolute: '-20', costBasis: '-200', percent: null, partial: false },
-      { currency: 'USD', absolute: '1', costBasis: '10', percent: '10', partial: false },
-    ]);
+    expect((await service.list('owner')).data?.[0]?.portfolioSummary?.unrealizedReturn).toEqual(
+      { absolute: '-19', costBasis: '-190', percent: null, partial: false },
+    );
   });
 
   it('observes the latest hourly walk without starting another one', async () => {

src/modules/investments/brokerage-accounts/brokerage-accounts.service.ts

@@ -2,14 +2,15 @@ import { Injectable } from '@nestjs/common';
 import { createHash } from 'node:crypto';
 
 import {
+  add,
   decimalFromString,
   divide,
   formatDecimal,
   isZero,
   multiply,
-} from '../../../common/decimal';
+} from '#src/common/decimal';
+
 import { investmentResourceMeta } from '../investment-resource.mapper';
-import { sumMoneyByCurrency } from '../portfolio/domain/portfolio-totals';
 import { PortfolioPositionDto, PortfolioService } from '../portfolio/portfolio.api';
 import { hourlyAttempt, TbankSyncRepository } from '../tbank-sync/tbank-sync.api';
 import {
@@ -21,61 +22,42 @@ import {
 const PERCENT_DECIMAL_PLACES = 2;
 const ZERO_QUANTITY = 0n;
 
-function unrealizedReturns(positions: PortfolioPositionDto[]): UnrealizedReturnDto[] {
-  // Cash-like CURRENCY positions must not duplicate the separately returned cash balances.
-  const investments = positions.filter((position) => position.type !== 'CURRENCY');
-  const absolute = sumMoneyByCurrency(
-    investments.flatMap((position) => position.absoluteReturn ? [position.absoluteReturn] : []),
+function unrealizedReturn(positions: PortfolioPositionDto[]): UnrealizedReturnDto {
+  const absoluteReturn = positions.reduce(
+    (sum, position) => position.absoluteReturn
+      ? add(sum, decimalFromString(position.absoluteReturn.value))
+      : sum,
+    decimalFromString('0'),
   );
-  const costs = sumMoneyByCurrency(
-    investments.flatMap((position) =>
-      position.absoluteReturn && position.averagePurchasePrice
-        ? [{
-            currency: position.absoluteReturn.currency,
-            value: formatDecimal(multiply(
-              decimalFromString(position.averagePurchasePrice.value),
-              decimalFromString(position.quantity),
-            )),
-          }]
-        : [],
-    ),
-  );
-  const partial = new Set(
-    investments.flatMap((position) => {
-      const money = position.absoluteReturn
-        ? null
-        : position.averagePurchasePrice ?? position.currentValue;
-      return money ? [money.currency] : [];
-    }),
+  const costBasis = positions
+    .filter((position) => position.absoluteReturn && position.averagePurchasePrice)
+    .reduce(
+      (sum, position) =>
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion -- Guarded by the filter above.
+        add(sum, multiply(decimalFromString(position.averagePurchasePrice!.value), decimalFromString(position.quantity))),
+      decimalFromString('0'),
+    );
+  const partial = positions.some(
+    (position) => !position.absoluteReturn && (position.averagePurchasePrice || position.currentValue),
   );
   // A short position has negative cost basis, so a percent would flip sign or net out.
-  const withShorts = new Set(
-    investments.flatMap((position) => {
-      const money = position.absoluteReturn ?? position.averagePurchasePrice ?? position.currentValue;
-      return money && decimalFromString(position.quantity).value < ZERO_QUANTITY ? [money.currency] : [];
-    }),
+  const withShorts = positions.some(
+    (position) =>
+      (position.absoluteReturn ?? position.averagePurchasePrice ?? position.currentValue) &&
+      decimalFromString(position.quantity).value < ZERO_QUANTITY,
   );
-  const currencies = new Set([...absolute, ...costs].map((money) => money.currency));
-  return [...new Set([...currencies, ...partial])]
-    .sort((left, right) => left.localeCompare(right))
-    .map((currency) => {
-      const absoluteReturn = absolute.find((money) => money.currency === currency)?.value ?? '0';
-      const costBasis = costs.find((money) => money.currency === currency)?.value ?? '0';
-      const cost = decimalFromString(costBasis);
-      return {
-        currency,
-        absolute: absoluteReturn,
-        costBasis,
-        percent: isZero(cost) || withShorts.has(currency)
-          ? null
-          : formatDecimal(divide(
-              multiply(decimalFromString(absoluteReturn), decimalFromString('100')),
-              cost,
-              PERCENT_DECIMAL_PLACES,
-            )),
-        partial: partial.has(currency),
-      };
-    });
+  return {
+    absolute: formatDecimal(absoluteReturn),
+    costBasis: formatDecimal(costBasis),
+    percent: isZero(costBasis) || withShorts
+      ? null
+      : formatDecimal(divide(
+          multiply(absoluteReturn, decimalFromString('100')),
+          costBasis,
+          PERCENT_DECIMAL_PLACES,
+        )),
+    partial,
+  };
 }
 
 @Injectable()
@@ -97,10 +79,10 @@ export class BrokerageAccountsService {
             openedOn: account.openedOn,
             portfolioSummary: account.snapshot
               ? {
-                  totalsByCurrency: account.snapshot.totalsByCurrency,
-                  cashBalances: account.snapshot.cashBalances,
+                  totals: account.snapshot.totals,
+                  cash: account.snapshot.cash,
                   structure: account.snapshot.structure,
-                  unrealizedReturnByCurrency: unrealizedReturns(account.snapshot.positions),
+                  unrealizedReturn: unrealizedReturn(account.snapshot.positions),
                   stockPositionCount: account.snapshot.positions.filter(
                     (position) => position.type === 'STOCK',
                   ).length,

src/modules/investments/income/income-analytics.controller.ts

@@ -3,9 +3,9 @@ import type { Request } from 'express';
 import { Controller, Get, Param, Query, Req, UseGuards } from '@nestjs/common';
 import { ApiBearerAuth, ApiOkResponse, ApiTags } from '@nestjs/swagger';
 
-import { ApiProblemResponses } from '../../../common/decorators/api-safe-error-response.decorator';
+import { ApiProblemResponses } from '#src/common/decorators/api-safe-error-response.decorator';
+
 import { AccessPayload, JwtAuthGuard } from '../../auth/auth.api';
-import { InvestmentReadQueryDto } from '../investment-resource.dto';
 import {
   IncomeAnalyticsQueryDto,
   IncomeAnalyticsResourceDto,
@@ -25,12 +25,10 @@ export class IncomeAnalyticsController {
   @ApiOkResponse({ type: IncomeSummaryResourceDto })
   allSummary(
     @Req() request: Request & { user: AccessPayload },
-    @Query() query: InvestmentReadQueryDto,
   ) {
     return this.income.summary(
       request.user.sub,
       'all',
-      query.sync === 'observe',
     );
   }
 
@@ -45,7 +43,6 @@ export class IncomeAnalyticsController {
       'all',
       query.from,
       query.to,
-      query.sync === 'observe',
     );
   }
 
@@ -54,12 +51,10 @@ export class IncomeAnalyticsController {
   summary(
     @Req() request: Request & { user: AccessPayload },
     @Param('accountId') accountId: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
     return this.income.summary(
       request.user.sub,
       accountId,
-      query.sync === 'observe',
     );
   }
 
@@ -75,7 +70,6 @@ export class IncomeAnalyticsController {
       accountId,
       query.from,
       query.to,
-      query.sync === 'observe',
     );
   }
 }

src/modules/investments/income/income-analytics.dto.ts

@@ -1,17 +1,17 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
 import { IsOptional, Matches } from 'class-validator';
 
-import { MoneyDto } from '../../../common/money.dto';
+import { MoneyDto } from '#src/common/money.dto';
+
 import {
   InvestmentDependencyDto,
-  InvestmentReadQueryDto,
   InvestmentResourceMetaDto,
 } from '../investment-resource.dto';
 import { BrokerageOperationDto } from '../operations/operations.api';
 
 const dateOnly = /^\d{4}-\d{2}-\d{2}$/;
 
-export class IncomeAnalyticsQueryDto extends InvestmentReadQueryDto {
+export class IncomeAnalyticsQueryDto {
   @ApiPropertyOptional({
     format: 'date',
     description:
@@ -39,10 +39,7 @@ export class IncomePeriodDto {
   declare to: string;
 }
 
-export class IncomeCurrencySummaryDto {
-  @ApiProperty()
-  declare currency: string;
-
+export class IncomeTotalDto {
   @ApiProperty({ type: MoneyDto })
   declare coupon: MoneyDto;
 
@@ -60,8 +57,8 @@ export class IncomeSummaryDto {
   @ApiProperty({ type: IncomePeriodDto })
   declare period: IncomePeriodDto;
 
-  @ApiProperty({ type: IncomeCurrencySummaryDto, isArray: true })
-  declare totalsByCurrency: IncomeCurrencySummaryDto[];
+  @ApiProperty({ type: IncomeTotalDto })
+  declare total: IncomeTotalDto;
 
   @ApiProperty({ format: 'date-time' })
   declare calculatedAt: string;
@@ -71,8 +68,8 @@ export class IncomeBucketDto {
   @ApiProperty({ type: IncomePeriodDto })
   declare period: IncomePeriodDto;
 
-  @ApiProperty({ type: IncomeCurrencySummaryDto, isArray: true })
-  declare totalsByCurrency: IncomeCurrencySummaryDto[];
+  @ApiProperty({ type: IncomeTotalDto })
+  declare total: IncomeTotalDto;
 }
 
 export class IncomeInstrumentDto {

src/modules/investments/income/income-analytics.service.spec.ts

@@ -1,4 +1,4 @@
-jest.mock('../../../prisma/prisma.service', () => ({
+jest.mock('#src/prisma/prisma.service', () => ({
   PrismaService: class {},
 }));
 jest.mock('../operations/application/brokerage-operations.service', () => ({
@@ -57,22 +57,22 @@ describe('IncomeAnalyticsService', () => {
         ticker: 'T',
         instrumentType: 'bond',
       },
-      key: 'uid:UID:RUB',
+      key: 'uid:UID',
     },
     {
       identity: { figi: 'FIGI', ticker: 'T', instrumentType: 'bond' },
-      key: 'figi:FIGI:RUB',
+      key: 'figi:FIGI',
     },
     {
       identity: { ticker: 'T', instrumentType: 'bond' },
-      key: 'ticker:T:bond:RUB',
+      key: 'ticker:T:bond',
     },
-    { identity: { ticker: 'T' }, key: 'ticker:T::RUB' },
+    { identity: { ticker: 'T' }, key: 'ticker:T:' },
     {
       identity: { ticker: null, instrumentType: 'bond' },
-      key: 'ticker::bond:RUB',
+      key: 'ticker::bond',
     },
-    { identity: { ticker: null }, key: 'operation:receipt:RUB' },
+    { identity: { ticker: null }, key: 'operation:receipt' },
   ])(
     'uses one membership for entry and aggregate: $key',
     async ({ identity, key }) => {
@@ -102,7 +102,7 @@ describe('IncomeAnalyticsService', () => {
     },
   );
 
-  it('preserves entry order, repeated IDs, currency groups and signed exact totals', async () => {
+  it('preserves entry order, repeated IDs and signed exact totals', async () => {
     const selected = [
       {
         ...entry('same-id', 'OPERATION_TYPE_COUPON', '10.25', 'RUB'),
@@ -112,10 +112,6 @@ describe('IncomeAnalyticsService', () => {
         ...entry('same-id', 'OPERATION_TYPE_DIVIDEND', '-0.25', 'RUB'),
         instrumentUid: 'UID',
       },
-      {
-        ...entry('usd', 'OPERATION_TYPE_COUPON', '20', 'USD'),
-        instrumentUid: 'UID',
-      },
     ];
     seed(selected);
 
@@ -131,7 +127,7 @@ describe('IncomeAnalyticsService', () => {
     expect(result.entries).toEqual(
       selected.map((item) => ({
         ...item,
-        instrumentKey: `uid:UID:${item.payment?.currency}`,
+        instrumentKey: 'uid:UID',
       })),
     );
     expect(
@@ -146,14 +142,7 @@ describe('IncomeAnalyticsService', () => {
       ),
     ).toEqual([
       {
-        key: 'uid:UID:USD',
-        receiptCount: 1,
-        coupon: { currency: 'USD', value: '20' },
-        dividend: { currency: 'USD', value: '0' },
-        total: { currency: 'USD', value: '20' },
-      },
-      {
-        key: 'uid:UID:RUB',
+        key: 'uid:UID',
         receiptCount: 2,
         coupon: { currency: 'RUB', value: '10.25' },
         dividend: { currency: 'RUB', value: '-0.25' },
@@ -162,7 +151,7 @@ describe('IncomeAnalyticsService', () => {
     ]);
     expect(
       result.entries
-        .filter((item) => item.instrumentKey === 'uid:UID:RUB')
+        .filter((item) => item.instrumentKey === 'uid:UID')
         .map((item) => item.payment?.value),
     ).toEqual(['10.25', '-0.25']);
   });
@@ -191,26 +180,32 @@ describe('IncomeAnalyticsService', () => {
     expect(response.data?.buckets).toEqual([
       {
         period: { from: '2026-01-14', to: '2026-01-14' },
-        totalsByCurrency: [expect.objectContaining({
+        total: {
+          coupon: { currency: 'RUB', value: '0.1' },
+          dividend: { currency: 'RUB', value: '0' },
           total: { currency: 'RUB', value: '0.1' },
-        })],
+        },
       },
       {
         period: { from: '2026-01-15', to: '2026-01-15' },
-        totalsByCurrency: [expect.objectContaining({
+        total: {
           coupon: { currency: 'RUB', value: '0.2' },
           dividend: { currency: 'RUB', value: '-0.1' },
           total: { currency: 'RUB', value: '0.1' },
-        })],
+        },
       },
       {
         period: { from: '2026-01-16', to: '2026-01-16' },
-        totalsByCurrency: [],
+        total: {
+          coupon: { currency: 'RUB', value: '0' },
+          dividend: { currency: 'RUB', value: '0' },
+          total: { currency: 'RUB', value: '0' },
+        },
       },
     ]);
   });
 
-  it('aggregates only exact coupon and dividend payments by source currency', async () => {
+  it('aggregates only exact coupon and dividend payments', async () => {
     operations.collectRanges.mockImplementation(
       (
         _user: string,
@@ -223,7 +218,6 @@ describe('IncomeAnalyticsService', () => {
             entry('coupon', 'OPERATION_TYPE_COUPON', '10.25', 'RUB'),
             entry('dividend', 'OPERATION_TYPE_DIVIDEND', '-2.5', 'RUB'),
             entry('transfer', 'OPERATION_TYPE_DIVIDEND_TRANSFER', '99', 'RUB'),
-            entry('usd', 'OPERATION_TYPE_COUPON', '1', 'USD'),
           ],
         ].map((items, index) => ({ items, meta: completeMeta(index) }));
       },
@@ -238,22 +232,14 @@ describe('IncomeAnalyticsService', () => {
 
     const result = response.data;
     assert(result);
-    expect(result.totalsByCurrency).toEqual([
-      expect.objectContaining({
-        currency: 'RUB',
-        coupon: { currency: 'RUB', value: '10.25' },
-        dividend: { currency: 'RUB', value: '-2.5' },
-        total: { currency: 'RUB', value: '7.75' },
-      }),
-      expect.objectContaining({
-        currency: 'USD',
-        total: { currency: 'USD', value: '1' },
-      }),
-    ]);
+    expect(result.total).toEqual({
+      coupon: { currency: 'RUB', value: '10.25' },
+      dividend: { currency: 'RUB', value: '-2.5' },
+      total: { currency: 'RUB', value: '7.75' },
+    });
     expect(result.entries.map((entry) => entry.id)).toEqual([
       'coupon',
       'dividend',
-      'usd',
     ]);
     expect(result.buckets).toHaveLength(31);
   });

src/modules/investments/income/income-analytics.service.ts

@@ -6,8 +6,9 @@ import {
   compare,
   decimalFromString,
   formatDecimal,
-} from '../../../common/decimal';
-import { isTbankProtocolValue, TbankOperationType } from '../../../integrations/tbank/tbank-protocol';
+} from '#src/common/decimal';
+import { isTbankProtocolValue, TbankOperationType } from '#src/integrations/tbank/tbank-protocol';
+
 import { DateOnlyRange, moscowDate } from '../investment-calendar';
 import { investmentResourceMeta } from '../investment-resource.mapper';
 import {
@@ -17,11 +18,11 @@ import {
 import {
   IncomeAnalyticsEntryDto,
   IncomeAnalyticsResourceDto,
-  IncomeCurrencySummaryDto,
   IncomeDependencyDto,
   IncomeInstrumentDto,
   IncomeSummaryDto,
   IncomeSummaryResourceDto,
+  IncomeTotalDto,
 } from './income-analytics.dto';
 import {
   IncomeBucketGranularity,
@@ -43,14 +44,12 @@ export class IncomeAnalyticsService {
   async summary(
     userId: string,
     accountId: string,
-    observe = false,
   ): Promise<IncomeSummaryResourceDto> {
     const plan = planIncomePeriod(undefined, undefined);
     const [selected] = await this.operations.collectRanges(
       userId,
       accountId,
       () => [plan.selected],
-      observe,
     );
     if (selected.items === null) return { data: null, meta: selected.meta };
     assert(selected.meta.lastSuccessfulAt);
@@ -70,14 +69,12 @@ export class IncomeAnalyticsService {
     accountId: string,
     from: string | undefined,
     to: string | undefined,
-    observe = false,
   ): Promise<IncomeAnalyticsResourceDto> {
     const plan = planIncomePeriod(from, to);
     const [current] = await this.operations.collectRanges(
       userId,
       accountId,
       () => [plan.selected],
-      observe,
     );
     const dependencies: IncomeDependencyDto[] = [
       { ...current.meta, role: 'selected' },
@@ -108,7 +105,7 @@ export class IncomeAnalyticsService {
     assert(current.meta.lastSuccessfulAt);
     const selected = qualifying(current.items).map((entry) => ({
       ...entry,
-      instrumentKey: `${instrumentKey(entry)}:${entry.payment?.currency ?? ''}`,
+      instrumentKey: instrumentKey(entry),
     }));
     return {
       data: {
@@ -142,23 +139,19 @@ function summaryResponse(
   entries: BrokerageOperationDto[],
   calculatedAt: string,
 ): IncomeSummaryDto {
-  return { accountId, period, totalsByCurrency: totals(entries), calculatedAt };
+  return { accountId, period, total: totals(entries), calculatedAt };
 }
 
-function totals(entries: BrokerageOperationDto[]): IncomeCurrencySummaryDto[] {
-  const values = new Map<string, Total>();
+function totals(entries: BrokerageOperationDto[]): IncomeTotalDto {
+  const total = zeroTotal();
   for (const entry of entries) {
     if (!entry.payment) continue;
-    const total = values.get(entry.payment.currency) ?? zeroTotal();
     const value = decimalFromString(entry.payment.value);
     if (isTbankProtocolValue(entry.type, TbankOperationType.Coupon)) {
       total.coupon = add(total.coupon, value);
     } else total.dividend = add(total.dividend, value);
-    values.set(entry.payment.currency, total);
   }
-  return [...values]
-    .sort(([left], [right]) => left.localeCompare(right))
-    .map(([currency, total]) => presentTotal(currency, total));
+  return presentTotal(total);
 }
 
 function buckets(
@@ -172,7 +165,7 @@ function buckets(
   }));
   return rangeBuckets(range, granularity).map((period) => ({
     period,
-    totalsByCurrency: totals(
+    total: totals(
       datedEntries
         .filter(({ date }) => date >= period.from && date <= period.to)
         .map(({ entry }) => entry),
@@ -192,7 +185,7 @@ function instruments(
   return [...groups]
     .map(([key, group]) => {
       const first = group[0];
-      const [total] = totals(group);
+      const total = totals(group);
       return {
         key,
         figi: first.figi,
@@ -228,15 +221,10 @@ function zeroTotal(): Total {
   return { coupon: { value: 0n, scale: 0 }, dividend: { value: 0n, scale: 0 } };
 }
 
-function presentTotal(
-  currency: string,
-  value: Total,
-): IncomeCurrencySummaryDto {
-  const total = add(value.coupon, value.dividend);
+function presentTotal(value: Total): IncomeTotalDto {
   return {
-    currency,
-    coupon: { currency, value: formatDecimal(value.coupon) },
-    dividend: { currency, value: formatDecimal(value.dividend) },
-    total: { currency, value: formatDecimal(total) },
+    coupon: { currency: 'RUB', value: formatDecimal(value.coupon) },
+    dividend: { currency: 'RUB', value: formatDecimal(value.dividend) },
+    total: { currency: 'RUB', value: formatDecimal(add(value.coupon, value.dividend)) },
   };
 }

src/modules/investments/income/income-period.ts

@@ -1,6 +1,7 @@
 import { BadRequestException } from '@nestjs/common';
 
-import { ISO_DATE_LENGTH, ISO_DATE_START, MILLISECONDS_PER_DAY } from '../../../common/time';
+import { ISO_DATE_LENGTH, ISO_DATE_START, MILLISECONDS_PER_DAY } from '#src/common/time';
+
 import {
   DateOnlyRange,
   dateParts,

src/modules/investments/instruments/application/candle.service.spec.ts

@@ -4,7 +4,7 @@ jest.mock('../infrastructure/candle.repository', () => ({
 jest.mock('./catalog-enrichment.service', () => ({
   CatalogEnrichmentService: class {},
 }));
-jest.mock('../../../../integrations/tbank/tbank.api', () => ({
+jest.mock('#src/integrations/tbank/tbank.api', () => ({
   TbankAccessService: class {},
   TbankClient: class {},
 }));

src/modules/investments/instruments/application/candle.service.ts

@@ -5,15 +5,16 @@ import {
 } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
 
-import { StructuredLogger } from '../../../../common/logging/structured-logger.service';
-import { MILLISECONDS_PER_DAY } from '../../../../common/time';
-import { isTbankErrorCode, TbankErrorCode } from '../../../../integrations/tbank/tbank-error-code';
+import { StructuredLogger } from '#src/common/logging/structured-logger.service';
+import { MILLISECONDS_PER_DAY } from '#src/common/time';
+import { isTbankErrorCode, TbankErrorCode } from '#src/integrations/tbank/tbank-error-code';
 import {
   TbankAccessService,
   TbankClient,
   type TbankShare,
   type TbankSyncAttempt,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
+
 import { investmentResourceMeta } from '../../investment-resource.mapper';
 import {
   candleGaps,
@@ -98,7 +99,7 @@ export class CandleService {
     private readonly logger: StructuredLogger,
   ) {}
 
-  async read(userId: string, input: CandleInput, observe = false) {
+  async read(userId: string, input: CandleInput) {
     const { revision } = await this.access.local(userId);
     const [detail] = await this.sources.readMany(
       userId,
@@ -118,7 +119,7 @@ export class CandleService {
     const hasCompleteRange = Boolean(
       range && saved && candleGaps(range, saved.coverage, now).length === NO_CANDLE_GAPS,
     );
-    if (!observe && (!saved || !hasCompleteRange)) {
+    if (!saved || !hasCompleteRange) {
       await this.request(userId, revision, input, now);
     }
     const work = await this.repository.work(userId, revision, scope(input));

src/modules/investments/instruments/application/catalog-discovery.service.spec.ts

@@ -0,0 +1,20 @@
+import { CatalogDiscoveryService } from './catalog-discovery.service';
+
+jest.mock('#src/prisma/prisma.service', () => ({ PrismaService: class {} }));
+
+describe('catalog discovery currency filtering', () => {
+  it('uses details to filter InstrumentShort results before resolving ticker ambiguity', async () => {
+    const short = (uid: string) => ({ uid, ticker: 'SBER', instrumentKind: 'INSTRUMENT_TYPE_SHARE' });
+    const client = {
+      findShares: jest.fn().mockResolvedValue([short('a'), short('b')]),
+      getShare: jest.fn().mockImplementation((_token: string, uid: string) =>
+        Promise.resolve({ uid, ticker: 'SBER', currency: uid === 'a' ? 'USD' : 'RUB' })),
+      getLastPrices: jest.fn().mockResolvedValue([]),
+    };
+    const access = { online: jest.fn().mockImplementation((_user: string, run: (connection: { token: string }) => unknown) => run({ token: 'fixture' })) };
+    const service = new CatalogDiscoveryService(access as never, client as never);
+    const search = await service.search('user', { instrumentType: 'share', query: 'SBER' });
+    expect(search.data.map((item) => item.uid)).toEqual(['b']);
+    expect((await service.byTicker('user', 'share', 'SBER')).data?.uid).toBe('b');
+  });
+});

src/modules/investments/instruments/application/catalog-discovery.service.ts

@@ -8,16 +8,15 @@ import {
   TbankAccessService,
   TbankClient,
   tbankSourceTtlMs,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
+
 import { investmentResourceMeta } from '../../investment-resource.mapper';
 import { InstrumentErrorCode } from '../domain/instrument-error-code';
 import {
-  CatalogDiscoveryRepository,
   catalogQuery,
   type CatalogQuery,
   catalogScope,
 } from '../infrastructure/catalog-discovery.repository';
-import { CatalogEnrichmentService } from './catalog-enrichment.service';
 import {
   catalogSearchLimit,
   selectCatalogInstruments,
@@ -25,7 +24,6 @@ import {
 import { publicInstrument } from './public-instrument';
 
 const UNAMBIGUOUS_MATCH_COUNT = 1;
-const NO_MATCHES = 0;
 const FIRST_RESULT_OFFSET = 0;
 
 const tickerAmbiguityLimit = 2;
@@ -33,203 +31,65 @@ const tickerAmbiguityLimit = 2;
 @Injectable()
 export class CatalogDiscoveryService {
   constructor(
-    private readonly repository: CatalogDiscoveryRepository,
     private readonly access: TbankAccessService,
     private readonly tbank: TbankClient,
-    private readonly enrichment: CatalogEnrichmentService,
   ) {}
 
-  async read(userId: string, input: CatalogQuery) {
-    input = catalogQuery(input);
-    const connection = await this.access.local(userId);
-    const saved = await this.repository.read(input);
-    return {
-      data: saved.data,
-      meta: investmentResourceMeta({
-        resourceKey: catalogScope(input),
-        dataRevision: saved.dataRevision,
-        availability: saved.data === null ? 'missing' : 'complete',
-        fetchedAt: saved.fetchedAt,
-        freshForMs: Number.MAX_SAFE_INTEGER,
-        work: await this.repository.work(userId, connection.revision, input),
-      }),
-    };
-  }
-
-  async search(userId: string, input: CatalogQuery, observe = false) {
-    if (!observe) return this.onlineSearch(userId, catalogQuery(input));
-    const discovery = await this.read(userId, input);
-    const sources = discovery.data
-      ? await this.enrichment.readMany(
-          userId,
-          input.instrumentType,
-          discovery.data.map((item) => item.uid),
-          observe,
-        )
-      : [];
-    const dependencies = [
-      discovery.meta,
-      ...sources.map((source) => source.meta),
-    ];
-    return {
-      data:
-        discovery.data?.map((short) => ({
-          ...short,
-          detail:
-            sources.find(
-              (source) =>
-                source.input.uid === short.uid &&
-                source.input.kind === 'detail',
-            )?.instrument ?? null,
-          price:
-            sources.find(
-              (source) =>
-                source.input.uid === short.uid &&
-                source.input.kind === 'last-price',
-            )?.price ?? null,
-        })) ?? null,
-      meta: investmentResourceMeta({
-        resourceKey: `search:${catalogScope(catalogQuery(input))}`,
-        dataRevision: dependencies
-          .map((dependency) => dependency.dataRevision)
-          .join('/'),
-        availability:
-          discovery.data === null
-            ? 'missing'
-            : sources.every((source) => source.meta.completeness === 'complete')
-              ? 'complete'
-              : 'partial',
-        fetchedAt: discovery.meta.lastSuccessfulAt
-          ? new Date(discovery.meta.lastSuccessfulAt)
-          : null,
-        freshForMs: Number.MAX_SAFE_INTEGER,
-        work: discovery.meta.sync.id
-          ? {
-              id: discovery.meta.sync.id,
-              state: discovery.meta.sync.state,
-              errorCode: discovery.meta.sync.errorCode,
-            }
-          : null,
-        dependencies,
-      }),
-    };
+  async search(userId: string, input: CatalogQuery) {
+    return this.onlineSearch(userId, catalogQuery(input));
   }
 
   async detail(
     userId: string,
     instrumentType: 'bond' | 'share',
     uid: string,
-    observe = false,
   ) {
-    if (!observe) {
-      const instrument = await this.access.online(userId, ({ token }) =>
-        instrumentType === 'share'
-          ? this.tbank.getShare(token, uid)
-          : this.tbank.getBond(token, uid),
-      );
-      if (!instrument) throw new NotFoundException();
-      return {
-        data: { ...publicInstrument({ ...instrument, uid }), uid, slug: instrument.ticker?.toUpperCase() ?? uid },
-        meta: investmentResourceMeta({
-          resourceKey: `${instrumentType}/detail/${uid}`,
-          dataRevision: `online:${Date.now()}`,
-          availability: 'complete',
-          fetchedAt: new Date(),
-          freshForMs: tbankSourceTtlMs.portfolio,
-          work: null,
-        }),
-      };
-    }
-    const sources = await this.enrichment.readMany(
-      userId,
-      instrumentType,
-      [uid],
-      observe,
-      ['detail'],
+    const instrument = await this.access.online(userId, ({ token }) =>
+      instrumentType === 'share'
+        ? this.tbank.getShare(token, uid)
+        : this.tbank.getBond(token, uid),
     );
-    const source = sources[0];
-    if (source.meta.completeness === 'complete' && !source.instrument) {
-      throw new NotFoundException();
-    }
-    const instrument = source.instrument;
-    let slug = uid;
-    const dependencies = [source.meta];
-    if (
-      instrument?.ticker &&
-      /^[A-Z0-9][\w.@+-]{0,79}$/i.test(instrument.ticker)
-    ) {
-      const alias = await this.read(userId, {
-        instrumentType,
-        query: instrument.ticker,
-        exactTicker: true,
-      });
-      if (alias.data?.length === UNAMBIGUOUS_MATCH_COUNT && alias.data[0].uid === uid) {
-        slug = instrument.ticker.toUpperCase();
-      }
-      dependencies.push(alias.meta);
-    }
+    // RUB-only: a non-RUB instrument line (e.g. USD line of an SPB-traded stock) is not available.
+    if (!instrument || instrument.currency?.toUpperCase() !== 'RUB') throw new NotFoundException();
     return {
-      data: instrument ? { ...instrument, uid, slug } : null,
+      data: { ...publicInstrument({ ...instrument, uid }), uid, slug: instrument.ticker?.toUpperCase() ?? uid },
       meta: investmentResourceMeta({
         resourceKey: `${instrumentType}/detail/${uid}`,
-        dataRevision: dependencies
-          .map((dependency) => dependency.dataRevision)
-          .join('/'),
-        availability: source.meta.availability,
-        fetchedAt: source.meta.lastSuccessfulAt
-          ? new Date(source.meta.lastSuccessfulAt)
-          : null,
+        dataRevision: `online:${Date.now()}`,
+        availability: 'complete',
+        fetchedAt: new Date(),
         freshForMs: tbankSourceTtlMs.portfolio,
-        work: source.meta.sync.id
-          ? {
-              id: source.meta.sync.id,
-              state: source.meta.sync.state,
-              errorCode: source.meta.sync.errorCode,
-            }
-          : null,
-        dependencies,
+        work: null,
       }),
     };
   }
 
-  // eslint-disable-next-line sonarjs/cognitive-complexity -- Online and observe paths intentionally preserve distinct error semantics.
   async byTicker(
     userId: string,
     instrumentType: 'bond' | 'share',
     ticker: string,
-    observe = false,
   ) {
-    if (!observe) {
-      const query = ticker.trim().toUpperCase();
-      const found = await this.access.online(userId, ({ token }) =>
-        instrumentType === 'share'
-          ? this.tbank.findShares(token, query)
-          : this.tbank.findBonds(token, query),
-      );
-      const matches = selectCatalogInstruments(
-        found.filter((item) => item.ticker?.trim().toUpperCase() === query),
-        query,
-        instrumentType,
-      ).slice(FIRST_RESULT_OFFSET, tickerAmbiguityLimit);
-      if (!matches.length) throw new NotFoundException();
-      if (matches.length > UNAMBIGUOUS_MATCH_COUNT) {
-        throw new ConflictException({
-          code:
-            instrumentType === 'share'
-              ? InstrumentErrorCode.StockTickerAmbiguous
-              : InstrumentErrorCode.BondTickerAmbiguous,
-        });
-      }
-      const result = await this.detail(userId, instrumentType, matches[0].uid);
-      return { ...result, data: result.data ? { ...result.data, slug: query } : null };
-    }
-    const lookup = await this.read(userId, {
+    const query = ticker.trim().toUpperCase();
+    const found = await this.access.online(userId, ({ token }) =>
+      instrumentType === 'share'
+        ? this.tbank.findShares(token, query)
+        : this.tbank.findBonds(token, query),
+    );
+    const candidates = selectCatalogInstruments(
+      found.filter((item) => item.ticker?.trim().toUpperCase() === query),
+      query,
       instrumentType,
-      query: ticker,
-      exactTicker: true,
-    });
-    if (lookup.data?.length === NO_MATCHES) throw new NotFoundException();
-    if (lookup.data && lookup.data.length > UNAMBIGUOUS_MATCH_COUNT) {
+    );
+    const details = await this.access.online(userId, ({ token }) => Promise.all(
+      candidates.map((item) => instrumentType === 'share'
+        ? this.tbank.getShare(token, item.uid)
+        : this.tbank.getBond(token, item.uid)),
+    ));
+    const matches = candidates.filter((_item, index) =>
+      details.at(index)?.currency?.trim().toUpperCase() === 'RUB',
+    ).slice(FIRST_RESULT_OFFSET, tickerAmbiguityLimit);
+    if (!matches.length) throw new NotFoundException();
+    if (matches.length > UNAMBIGUOUS_MATCH_COUNT) {
       throw new ConflictException({
         code:
           instrumentType === 'share'
@@ -237,34 +97,8 @@ export class CatalogDiscoveryService {
             : InstrumentErrorCode.BondTickerAmbiguous,
       });
     }
-    const result = lookup.data
-      ? await this.detail(userId, instrumentType, lookup.data[0].uid, observe)
-      : null;
-    const dependencies = [lookup.meta, ...(result ? [result.meta] : [])];
-    return {
-      data: result?.data
-        ? { ...result.data, slug: ticker.trim().toUpperCase() }
-        : null,
-      meta: investmentResourceMeta({
-        resourceKey: `${instrumentType}/ticker/${ticker.trim().toUpperCase()}`,
-        dataRevision: dependencies
-          .map((dependency) => dependency.dataRevision)
-          .join('/'),
-        availability: result?.meta.availability ?? 'missing',
-        fetchedAt: lookup.meta.lastSuccessfulAt
-          ? new Date(lookup.meta.lastSuccessfulAt)
-          : null,
-        freshForMs: tbankSourceTtlMs.portfolio,
-        work: lookup.meta.sync.id
-          ? {
-              id: lookup.meta.sync.id,
-              state: lookup.meta.sync.state,
-              errorCode: lookup.meta.sync.errorCode,
-            }
-          : null,
-        dependencies,
-      }),
-    };
+    const result = await this.detail(userId, instrumentType, matches[0].uid);
+    return { ...result, data: result.data ? { ...result.data, slug: query } : null };
   }
 
   private async onlineSearch(userId: string, input: CatalogQuery) {
@@ -279,7 +113,7 @@ export class CatalogDiscoveryService {
           : found,
         input.query,
         input.instrumentType,
-      ).slice(FIRST_RESULT_OFFSET, input.exactTicker ? tickerAmbiguityLimit : catalogSearchLimit);
+      );
       const [details, prices] = await Promise.all([
         Promise.all(
           instruments.map((item) =>
@@ -297,12 +131,13 @@ export class CatalogDiscoveryService {
     const fetchedAt = new Date();
     const data = instruments.flatMap((item, index) => {
       const detail = details.at(index);
+      if (detail?.currency?.trim().toUpperCase() !== 'RUB') return [];
       return [{
         ...item,
         detail: detail ? publicInstrument({ ...detail, uid: item.uid }) : null,
         price: prices.find((price) => price.instrumentUid === item.uid) ?? null,
       }];
-    });
+    }).slice(FIRST_RESULT_OFFSET, input.exactTicker ? tickerAmbiguityLimit : catalogSearchLimit);
     return {
       data,
       meta: investmentResourceMeta({

src/modules/investments/instruments/application/catalog-enrichment.service.ts

@@ -1,43 +1,26 @@
 import { Injectable, NotFoundException } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
 
-import {
-  decimalFromString,
-  divide,
-} from '../../../../common/decimal';
-import { StructuredLogger } from '../../../../common/logging/structured-logger.service';
-import {
-  MILLISECONDS_PER_DAY,
-  MILLISECONDS_PER_SECOND,
-} from '../../../../common/time';
-import { type MoexBondEvent, MoexClient } from '../../../../integrations/moex/moex.api';
-import { NcrRatingsClient } from '../../../../integrations/ncr/ncr.api';
-import { isTbankErrorCode, TbankErrorCode } from '../../../../integrations/tbank/tbank-error-code';
+import { StructuredLogger } from '#src/common/logging/structured-logger.service';
+import { isTbankErrorCode, TbankErrorCode } from '#src/integrations/tbank/tbank-error-code';
 import {
   TbankAccessService,
-  type TbankBond,
-  type TbankCandle,
   TbankClient,
-  type TbankCoupon,
-  type TbankDividend,
-  type TbankFundamentals,
-  type TbankLastPrice,
-  type TbankShare,
+  TbankLastPrice,
   tbankSourceNeedsRefresh,
   tbankSourceTtlMs,
   type TbankSyncAttempt,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
+
 import { investmentResourceMeta } from '../../investment-resource.mapper';
-import { candleGaps, utcDay } from '../domain/candle-coverage';
-import { CandleRepository } from '../infrastructure/candle.repository';
 import {
   CatalogDiscoveryRepository,
   catalogScope,
   type CatalogSource,
 } from '../infrastructure/catalog-discovery.repository';
-import { toSavedCandle } from '../infrastructure/tbank-candle.mapper';
+import { type CatalogPayload, CatalogSourceLoader } from './catalog-source.loader';
+export type { CatalogPayload } from './catalog-source.loader';
 import { catalogSearchLimit } from './catalog-selection';
-import { previousClose, timestamp } from './instrument-market';
 import { publicInstrument } from './public-instrument';
 
 const MISSING_DATA_REVISION = 0;
@@ -93,9 +76,7 @@ export class CatalogEnrichmentService {
     private readonly access: TbankAccessService,
     private readonly tbank: TbankClient,
     private readonly logger: StructuredLogger,
-    private readonly moex: MoexClient,
-    private readonly ratings: NcrRatingsClient,
-    private readonly candles: CandleRepository,
+    private readonly loader: CatalogSourceLoader,
   ) {}
 
   async readMany(
@@ -241,9 +222,8 @@ export class CatalogEnrichmentService {
     instrumentType: 'bond' | 'share',
     uid: string,
     section: 'company' | 'metrics' | 'quote',
-    observe = false,
   ) {
-    if (section === 'company' && !observe) {
+    if (section === 'company') {
       const { description, fundamentals, instrument } = await this.access.online(userId, async ({ token }) => {
         const instrument =
           instrumentType === 'share'
@@ -273,25 +253,22 @@ export class CatalogEnrichmentService {
         observedAt: meta.lastSuccessfulAt ?? new Date().toISOString(),
       };
     }
-    const kinds: CatalogSource['kind'][] =
-      section === 'company'
-        ? ['detail', 'description', 'fundamentals']
-        : [
-            ...(instrumentType === 'bond'
-              ? ['bond-current' as const]
-              : ['detail' as const]),
-            'last-price',
-            'trading-status',
-            'comparison',
-            ...(section === 'metrics'
-              ? ['coupons' as const, 'yield' as const, 'rating' as const]
-              : []),
-          ];
+    const kinds: CatalogSource['kind'][] = [
+      ...(instrumentType === 'bond'
+        ? ['bond-current' as const]
+        : ['detail' as const]),
+      'last-price',
+      'trading-status',
+      'comparison',
+      ...(section === 'metrics'
+        ? ['coupons' as const, 'yield' as const, 'rating' as const]
+        : []),
+    ];
     const sources = await this.readMany(
       userId,
       instrumentType,
       [uid],
-      observe,
+      false,
       kinds,
     );
     const first = sources[0];
@@ -319,7 +296,7 @@ export class CatalogEnrichmentService {
       fetchedAt: first.meta.lastSuccessfulAt
         ? new Date(first.meta.lastSuccessfulAt)
         : null,
-      freshForMs: section === 'company' ? Number.MAX_SAFE_INTEGER : tbankSourceTtlMs.quote,
+      freshForMs: tbankSourceTtlMs.quote,
       work: null,
       dependencies,
     });
@@ -337,169 +314,6 @@ export class CatalogEnrichmentService {
     };
   }
 
-  // eslint-disable-next-line sonarjs/cognitive-complexity -- Source loading intentionally dispatches by persisted resource kind.
-  private async load(
-    input: CatalogSource,
-    token: string,
-    attempt: TbankSyncAttempt,
-  ): Promise<CatalogPayload> {
-    if (input.kind === 'detail' || input.kind === 'bond-current') {
-      const instrument =
-        input.instrumentType === 'share'
-          ? await this.tbank.getShare(token, input.uid)
-          : await this.tbank.getBond(token, input.uid);
-      if (instrument && instrument.uid !== input.uid) {
-        throw new Error('Catalog UID mismatch');
-      }
-      // eslint-disable-next-line sonarjs/different-types-comparison -- Defensive validation rejects missing upstream payloads instead of caching them as absence.
-      if (instrument === undefined) throw new Error('Missing catalog response');
-      return { instrument: instrument ? publicInstrument({ ...instrument, uid: input.uid }) : null };
-    }
-    if (input.kind === 'trading-status') {
-      return {
-        tradingStatus: await this.tbank.getTradingStatus(token, input.uid),
-      };
-    }
-    if (input.kind === 'comparison') {
-      const prices = await this.repository.readSources([
-        { ...input, kind: 'last-price', rangeKey: undefined },
-      ]);
-      if (!prices.length) throw new Error('Price dependency missing');
-      const price = (prices[0].payload as CatalogPayload).price;
-      const priceAt = timestamp(price?.time);
-      if (!priceAt) return { candle: null };
-      const now = new Date();
-      const range = {
-        from: utcDay(new Date(Date.parse(priceAt) - previousCloseLookbackMs)),
-        to: new Date(priceAt),
-      };
-      const saved = await this.candles.read(input.uid, range);
-      const gaps = candleGaps(range, saved.coverage, now);
-      for (const gap of gaps) {
-        const response = await this.tbank.getCandles(
-          token,
-          input.uid,
-          gap.from,
-          gap.to,
-        );
-        const rows = response.map(toSavedCandle);
-        if (!(await this.candles.stage(attempt, gap, rows, now))) {
-          throw new Error('Cancelled candle comparison');
-        }
-      }
-      if (
-        gaps.length &&
-        !(await this.candles.publish(
-          attempt,
-          { uid: input.uid, ranges: gaps },
-          false,
-        ))
-      ) {
-        throw new Error('Cancelled candle comparison');
-      }
-      const values = (await this.candles.read(input.uid, range)).data.map(
-        (row) => {
-          const value = divide(
-            decimalFromString(row.close),
-            decimalFromString('1'),
-            quotationScale,
-          ).value;
-          return {
-            time: {
-              seconds: String(Date.parse(row.time) / MILLISECONDS_PER_SECOND),
-            },
-            close: {
-              units: String(value / quotationUnits),
-              nano: Number(value % quotationUnits),
-            },
-            isComplete: row.isComplete,
-          };
-        },
-      );
-      return { candle: previousClose(values, priceAt) };
-    }
-    const details = await this.repository.readSources([
-      { ...input, kind: 'detail', rangeKey: undefined },
-      ...(input.instrumentType === 'bond'
-        ? [{ ...input, kind: 'bond-current' as const, rangeKey: undefined }]
-        : []),
-    ]);
-    const instrument = details
-      .map((row) => (row.payload as CatalogPayload).instrument)
-      .find(Boolean);
-    if (
-      !instrument &&
-      !['bond-events', 'coupons', 'dividends'].includes(input.kind)
-    ) {
-      throw new Error('Instrument dependency missing');
-    }
-    if (input.kind === 'description') {
-      return {
-        description: instrument?.assetUid
-          ? await this.tbank.getAssetDescription(token, instrument?.assetUid)
-          : null,
-      };
-    }
-    if (input.kind === 'fundamentals') {
-      return {
-        fundamentals: instrument?.assetUid
-          ? await this.tbank.getFundamentals(token, instrument?.assetUid)
-          : null,
-      };
-    }
-    if (input.kind === 'coupons' || input.kind === 'dividends') {
-      const year = Number(input.rangeKey);
-      const [from, to] = input.rangeKey?.startsWith('[')
-        ? (JSON.parse(input.rangeKey) as [string, string])
-        : [
-            `${year - payoutHistoryYears}-01-01`,
-            `${year + payoutFutureYears}-01-01`,
-          ];
-      return input.kind === 'coupons'
-        ? {
-            coupons: await this.tbank.getBondCoupons(
-              token,
-              input.uid,
-              from,
-              to,
-            ),
-          }
-        : {
-            dividends: await this.tbank.getDividends(
-              token,
-              input.uid,
-              from,
-              to,
-            ),
-          };
-    }
-    if (input.kind === 'bond-events') {
-      const ticker = instrument?.ticker || input.ticker;
-      if (!ticker) throw new Error('Bond ticker missing');
-      return { bondEvents: await this.moex.bondEvents(ticker) };
-    }
-    if (input.kind === 'yield') {
-      return {
-        effectiveYield:
-          instrument?.ticker && instrument.isin && instrument.classCode
-            ? await this.moex.bondYield(
-                instrument.ticker,
-                instrument.isin,
-                instrument.classCode,
-              )
-            : null,
-      };
-    }
-    if (input.kind === 'rating') {
-      return {
-        creditRating: instrument?.isin
-          ? await this.ratings.rating(instrument.isin)
-          : null,
-      };
-    }
-    throw new Error('Unsupported catalog source');
-  }
-
   // eslint-disable-next-line sonarjs/cognitive-complexity -- Queue draining coordinates publication fences and observer completion.
   private async drain() {
     try {
@@ -537,7 +351,7 @@ export class CatalogEnrichmentService {
               batch.map((item) => item.input.uid),
             );
           } else {
-            payload = await this.load(producer.input, token, producer.attempt);
+            payload = await this.loader.load(producer.input, token, producer.attempt);
           }
         } catch (error) {
           failed = true;
@@ -639,24 +453,6 @@ function sourceInputs(
     })),
   );
 }
-const previousCloseLookbackDays = 20;
-const previousCloseLookbackMs =
-  previousCloseLookbackDays * MILLISECONDS_PER_DAY;
-const payoutHistoryYears = 5;
-const payoutFutureYears = 2;
-export type CatalogPayload = {
-  bondEvents?: MoexBondEvent[];
-  candle?: null | TbankCandle;
-  coupons?: TbankCoupon[];
-  creditRating?: Awaited<ReturnType<NcrRatingsClient['rating']>>;
-  description?: null | string;
-  dividends?: TbankDividend[];
-  effectiveYield?: Awaited<ReturnType<MoexClient['bondYield']>>;
-  fundamentals?: null | TbankFundamentals;
-  instrument?: null | TbankBond | TbankShare;
-  price?: null | TbankLastPrice;
-  tradingStatus?: null | string;
-};
 
 function sourcePolicy(kind: CatalogSource['kind']) {
   if (
@@ -679,6 +475,3 @@ function producerKey(input: CatalogSource) {
     ? `bond-metadata:${input.uid}`
     : catalogScope(input);
 }
-
-const quotationScale = 9;
-const quotationUnits = 1_000_000_000n;

src/modules/investments/instruments/application/catalog-selection.ts

@@ -1,6 +1,6 @@
-import type { TbankShare } from '../../../../integrations/tbank/tbank.api';
+import type { TbankShare } from '#src/integrations/tbank/tbank.api';
 
-import { TbankInstrumentType } from '../../../../integrations/tbank/tbank-protocol';
+import { TbankInstrumentType } from '#src/integrations/tbank/tbank-protocol';
 
 export const catalogSearchLimit = 30;
 

src/modules/investments/instruments/application/catalog-source.loader.ts

@@ -0,0 +1,229 @@
+import { Injectable } from '@nestjs/common';
+
+import {
+  decimalFromString,
+  divide,
+} from '#src/common/decimal';
+import {
+  MILLISECONDS_PER_DAY,
+  MILLISECONDS_PER_SECOND,
+} from '#src/common/time';
+import { type MoexBondEvent, MoexClient } from '#src/integrations/moex/moex.api';
+import { NcrRatingsClient } from '#src/integrations/ncr/ncr.api';
+import {
+  type TbankBond,
+  type TbankCandle,
+  TbankClient,
+  type TbankCoupon,
+  type TbankDividend,
+  type TbankFundamentals,
+  type TbankLastPrice,
+  type TbankShare,
+  type TbankSyncAttempt,
+} from '#src/integrations/tbank/tbank.api';
+
+import { candleGaps, utcDay } from '../domain/candle-coverage';
+import { CandleRepository } from '../infrastructure/candle.repository';
+import {
+  CatalogDiscoveryRepository,
+  type CatalogSource,
+} from '../infrastructure/catalog-discovery.repository';
+import { toSavedCandle } from '../infrastructure/tbank-candle.mapper';
+import { previousClose, timestamp } from './instrument-market';
+import { publicInstrument } from './public-instrument';
+
+export type CatalogPayload = {
+  bondEvents?: MoexBondEvent[];
+  candle?: null | TbankCandle;
+  coupons?: TbankCoupon[];
+  creditRating?: Awaited<ReturnType<NcrRatingsClient['rating']>>;
+  description?: null | string;
+  dividends?: TbankDividend[];
+  effectiveYield?: Awaited<ReturnType<MoexClient['bondYield']>>;
+  fundamentals?: null | TbankFundamentals;
+  instrument?: null | TbankBond | TbankShare;
+  price?: null | TbankLastPrice;
+  tradingStatus?: null | string;
+};
+
+const previousCloseLookbackDays = 20;
+const previousCloseLookbackMs =
+  previousCloseLookbackDays * MILLISECONDS_PER_DAY;
+const payoutHistoryYears = 5;
+const payoutFutureYears = 2;
+const quotationScale = 9;
+const quotationUnits = 1_000_000_000n;
+
+@Injectable()
+export class CatalogSourceLoader {
+  constructor(
+    private readonly repository: CatalogDiscoveryRepository,
+    private readonly tbank: TbankClient,
+    private readonly moex: MoexClient,
+    private readonly ratings: NcrRatingsClient,
+    private readonly candles: CandleRepository,
+  ) {}
+
+  // eslint-disable-next-line sonarjs/cognitive-complexity -- Source loading intentionally dispatches by persisted resource kind.
+  async load(
+    input: CatalogSource,
+    token: string,
+    attempt: TbankSyncAttempt,
+  ): Promise<CatalogPayload> {
+    if (input.kind === 'detail' || input.kind === 'bond-current') {
+      const instrument =
+        input.instrumentType === 'share'
+          ? await this.tbank.getShare(token, input.uid)
+          : await this.tbank.getBond(token, input.uid);
+      if (instrument && instrument.uid !== input.uid) {
+        throw new Error('Catalog UID mismatch');
+      }
+      // eslint-disable-next-line sonarjs/different-types-comparison -- Defensive validation rejects missing upstream payloads instead of caching them as absence.
+      if (instrument === undefined) throw new Error('Missing catalog response');
+      return { instrument: instrument ? publicInstrument({ ...instrument, uid: input.uid }) : null };
+    }
+    if (input.kind === 'trading-status') {
+      return {
+        tradingStatus: await this.tbank.getTradingStatus(token, input.uid),
+      };
+    }
+    if (input.kind === 'comparison') {
+      const prices = await this.repository.readSources([
+        { ...input, kind: 'last-price', rangeKey: undefined },
+      ]);
+      if (!prices.length) throw new Error('Price dependency missing');
+      const price = (prices[0].payload as CatalogPayload).price;
+      const priceAt = timestamp(price?.time);
+      if (!priceAt) return { candle: null };
+      const now = new Date();
+      const range = {
+        from: utcDay(new Date(Date.parse(priceAt) - previousCloseLookbackMs)),
+        to: new Date(priceAt),
+      };
+      const saved = await this.candles.read(input.uid, range);
+      const gaps = candleGaps(range, saved.coverage, now);
+      for (const gap of gaps) {
+        const response = await this.tbank.getCandles(
+          token,
+          input.uid,
+          gap.from,
+          gap.to,
+        );
+        const rows = response.map(toSavedCandle);
+        if (!(await this.candles.stage(attempt, gap, rows, now))) {
+          throw new Error('Cancelled candle comparison');
+        }
+      }
+      if (
+        gaps.length &&
+        !(await this.candles.publish(
+          attempt,
+          { uid: input.uid, ranges: gaps },
+          false,
+        ))
+      ) {
+        throw new Error('Cancelled candle comparison');
+      }
+      const values = (await this.candles.read(input.uid, range)).data.map(
+        (row) => {
+          const value = divide(
+            decimalFromString(row.close),
+            decimalFromString('1'),
+            quotationScale,
+          ).value;
+          return {
+            time: {
+              seconds: String(Date.parse(row.time) / MILLISECONDS_PER_SECOND),
+            },
+            close: {
+              units: String(value / quotationUnits),
+              nano: Number(value % quotationUnits),
+            },
+            isComplete: row.isComplete,
+          };
+        },
+      );
+      return { candle: previousClose(values, priceAt) };
+    }
+    const details = await this.repository.readSources([
+      { ...input, kind: 'detail', rangeKey: undefined },
+      ...(input.instrumentType === 'bond'
+        ? [{ ...input, kind: 'bond-current' as const, rangeKey: undefined }]
+        : []),
+    ]);
+    const instrument = details
+      .map((row) => (row.payload as CatalogPayload).instrument)
+      .find(Boolean);
+    if (
+      !instrument &&
+      !['bond-events', 'coupons', 'dividends'].includes(input.kind)
+    ) {
+      throw new Error('Instrument dependency missing');
+    }
+    if (input.kind === 'description') {
+      return {
+        description: instrument?.assetUid
+          ? await this.tbank.getAssetDescription(token, instrument?.assetUid)
+          : null,
+      };
+    }
+    if (input.kind === 'fundamentals') {
+      return {
+        fundamentals: instrument?.assetUid
+          ? await this.tbank.getFundamentals(token, instrument?.assetUid)
+          : null,
+      };
+    }
+    if (input.kind === 'coupons' || input.kind === 'dividends') {
+      const year = Number(input.rangeKey);
+      const [from, to] = input.rangeKey?.startsWith('[')
+        ? (JSON.parse(input.rangeKey) as [string, string])
+        : [
+            `${year - payoutHistoryYears}-01-01`,
+            `${year + payoutFutureYears}-01-01`,
+          ];
+      return input.kind === 'coupons'
+        ? {
+            coupons: await this.tbank.getBondCoupons(
+              token,
+              input.uid,
+              from,
+              to,
+            ),
+          }
+        : {
+            dividends: await this.tbank.getDividends(
+              token,
+              input.uid,
+              from,
+              to,
+            ),
+          };
+    }
+    if (input.kind === 'bond-events') {
+      const ticker = instrument?.ticker || input.ticker;
+      if (!ticker) throw new Error('Bond ticker missing');
+      return { bondEvents: await this.moex.bondEvents(ticker) };
+    }
+    if (input.kind === 'yield') {
+      return {
+        effectiveYield:
+          instrument?.ticker && instrument.isin && instrument.classCode
+            ? await this.moex.bondYield(
+                instrument.ticker,
+                instrument.isin,
+                instrument.classCode,
+              )
+            : null,
+      };
+    }
+    if (input.kind === 'rating') {
+      return {
+        creditRating: instrument?.isin
+          ? await this.ratings.rating(instrument.isin)
+          : null,
+      };
+    }
+    throw new Error('Unsupported catalog source');
+  }
+}

src/modules/investments/instruments/application/instrument-market.ts

@@ -1,9 +1,9 @@
 import type {
   TbankCandle,
   TbankTimestamp,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
 
-import { ISO_DATE_LENGTH, ISO_DATE_START, MILLISECONDS_PER_SECOND } from '../../../../common/time';
+import { ISO_DATE_LENGTH, ISO_DATE_START, MILLISECONDS_PER_SECOND } from '#src/common/time';
 
 const MIN_TIMESTAMP_SECONDS_EXCLUSIVE = 0;
 

src/modules/investments/instruments/application/instrument-position.spec.ts

@@ -27,11 +27,11 @@ const row = (
 });
 const portfolio = (positions: PortfolioPositionDto[]): PortfolioDto => ({
   positions,
-  cashBalances: [],
-  totalsByCurrency: [],
+  cash: { currency: 'RUB', value: '0' },
+  totals: { currency: 'RUB', value: '0' },
   isStale: false,
   lastSuccessfulAt: '2026-09-10T00:00:00Z',
-  structure: { currencies: [], unvaluedCategories: [] },
+  structure: { totalValue: '0', hasNegativeValues: false, categories: [], unvaluedCategories: [] },
 });
 
 describe('stock position', () => {
@@ -64,10 +64,10 @@ describe('stock position', () => {
       expect(result.averagePurchasePrice?.value).toBe('0.1');
     },
   );
-  it('does not sum currencies or treat unknown values as zero', () => {
+  it('does not treat unknown values as zero', () => {
     const second = {
       ...row(),
-      currentValue: money('2', 'USD'),
+      currentValue: null,
       averagePurchasePrice: null,
       absoluteReturn: null,
     };

src/modules/investments/instruments/application/instrument-position.ts

@@ -4,8 +4,9 @@ import {
   divide,
   formatDecimal,
   multiply,
-} from '../../../../common/decimal';
-import { MoneyDto } from '../../../../common/money.dto';
+} from '#src/common/decimal';
+import { MoneyDto } from '#src/common/money.dto';
+
 import {
   PortfolioDto,
   PortfolioPositionDto,
@@ -45,7 +46,7 @@ export function instrumentPosition(
     averagePurchasePrice:
       positive && totalCost
         ? {
-            currency: totalCost.currency,
+            currency: 'RUB',
             value: formatDecimal(
               divide(
                 decimalFromString(totalCost.value),
@@ -82,17 +83,12 @@ function cost(position: PortfolioPositionDto): MoneyDto | null {
     : null;
 }
 function sumComplete(values: (MoneyDto | null)[]): MoneyDto | null {
-  const currency = values[0]?.currency;
-  if (
-    !currency ||
-    !values.every((v): v is MoneyDto => v !== null && v.currency === currency)
-  ) {
-    return null;
-  }
+  if (!values.length || !values.every((value): value is MoneyDto => value !== null)) return null;
+  const present = values;
   return {
-    currency,
+    currency: 'RUB',
     value: formatDecimal(
-      values.reduce(
+      present.reduce(
         (sum, value) => add(sum, decimalFromString(value.value)),
         decimalFromString('0'),
       ),
@@ -106,7 +102,6 @@ function percent(
   if (
     !base ||
     !result ||
-    base.currency !== result.currency ||
     decimalFromString(base.value).value <= ZERO_AMOUNT
   ) {
     return null;

src/modules/investments/instruments/application/public-instrument.spec.ts

@@ -1,7 +1,7 @@
 import type {
   TbankBond,
   TbankShare,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
 
 import { publicInstrument } from './public-instrument';
 

src/modules/investments/instruments/application/public-instrument.ts

@@ -1,7 +1,7 @@
 import type {
   TbankBond,
   TbankShare,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
 
 export function publicInstrument(value: TbankBond | TbankShare) {
   const bond = value as TbankBond;

src/modules/investments/instruments/bonds/application/bond-catalog.service.ts

@@ -1,9 +1,10 @@
 import { Injectable } from '@nestjs/common';
 
-import type { TbankBond } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankBond } from '#src/integrations/tbank/tbank.api';
+
+import { formatDecimal } from '#src/common/decimal';
+import { decimal } from '#src/integrations/tbank/decimal';
 
-import { formatDecimal } from '../../../../../common/decimal';
-import { decimal } from '../../../../../integrations/tbank/decimal';
 import { CatalogDiscoveryService } from '../../application/catalog-discovery.service';
 import { timestamp } from '../../application/instrument-market';
 import {
@@ -14,7 +15,8 @@ import {
 
 type IdentifiedBond = TbankBond & { uid: string };
 
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../../common/time';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+
 import { money } from '../infrastructure/bond-money.mapper';
 
 const MIN_LOT_EXCLUSIVE = 0;
@@ -25,12 +27,10 @@ export class BondCatalogService {
   async search(
     userId: string,
     query: string,
-    observe = false,
   ): Promise<BondSearchResourceDto> {
     const result = await this.discovery.search(
       userId,
       { instrumentType: 'bond', query },
-      observe,
     );
     return {
       ...result,
@@ -58,9 +58,8 @@ export class BondCatalogService {
   async get(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<BondResourceDto> {
-    const result = await this.discovery.detail(userId, 'bond', uid, observe);
+    const result = await this.discovery.detail(userId, 'bond', uid);
     return {
       ...result,
       data: result.data
@@ -72,13 +71,11 @@ export class BondCatalogService {
   async getByTicker(
     userId: string,
     ticker: string,
-    observe = false,
   ): Promise<BondResourceDto> {
     const result = await this.discovery.byTicker(
       userId,
       'bond',
       ticker,
-      observe,
     );
     return {
       ...result,

src/modules/investments/instruments/bonds/application/bond-income.service.ts

@@ -5,19 +5,20 @@ import {
   divide,
   formatDecimal,
   multiply,
-} from '../../../../../common/decimal';
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../../common/time';
-import { isTbankProtocolValue, TbankCouponType } from '../../../../../integrations/tbank/tbank-protocol';
+} from '#src/common/decimal';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+import { isTbankProtocolValue, TbankCouponType } from '#src/integrations/tbank/tbank-protocol';
 import {
   TbankAccessService,
   type TbankBond,
   type TbankCoupon,
   tbankSourceNeedsRefresh,
-} from '../../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
 import {
   ForecastService,
   PortfolioService,
-} from '../../../portfolio/portfolio.api';
+} from '#src/modules/investments/portfolio/portfolio.api';
+
 import {
   CatalogEnrichmentService,
   type CatalogPayload,
@@ -54,14 +55,12 @@ export class BondIncomeService {
   async metrics(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<BondMetricsResourceDto> {
     const result = await this.sources.section(
       userId,
       'bond',
       uid,
       'metrics',
-      observe,
     );
     return {
       data: result.values.instrument
@@ -82,7 +81,6 @@ export class BondIncomeService {
   async coupons(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<BondCouponsResourceDto> {
     const connection = await this.access.local(userId);
     const today = moscowDay(new Date().toISOString());
@@ -93,7 +91,7 @@ export class BondIncomeService {
       userId,
       'bond',
       [uid],
-      observe,
+      false,
       ['detail', 'coupons'],
       { from, to },
     );
@@ -180,7 +178,7 @@ export function bondCoupons(
           recordDate &&
           recordDate >= today
             ? {
-                currency: perBond.currency,
+                currency: 'RUB',
                 value: formatDecimal(
                   multiply(quantity, decimalFromString(perBond.value)),
                 ),
@@ -229,7 +227,6 @@ export function bondMetrics(
     coupon &&
     couponPeriodDays &&
     clean &&
-    coupon.currency === clean.currency &&
     decimalFromString(coupon.value).value >= ZERO_AMOUNT &&
     decimalFromString(clean.value).value > ZERO_AMOUNT
       ? formatDecimal(

src/modules/investments/instruments/bonds/application/bond-market.service.ts

@@ -1,6 +1,6 @@
 import { Injectable } from '@nestjs/common';
 
-import type { TbankBond } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankBond } from '#src/integrations/tbank/tbank.api';
 
 import {
   add,
@@ -9,9 +9,10 @@ import {
   formatDecimal,
   multiply,
   subtract,
-} from '../../../../../common/decimal';
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../../common/time';
-import { decimal } from '../../../../../integrations/tbank/decimal';
+} from '#src/common/decimal';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+import { decimal } from '#src/integrations/tbank/decimal';
+
 import { CandleService } from '../../application/candle.service';
 import {
   CatalogEnrichmentService,
@@ -38,14 +39,12 @@ export class BondMarketService {
   async quote(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<BondQuoteResourceDto> {
     const result = await this.sources.section(
       userId,
       'bond',
       uid,
       'quote',
-      observe,
     );
     return {
       data: result.values.instrument
@@ -59,12 +58,10 @@ export class BondMarketService {
     userId: string,
     uid: string,
     period: BondCandlesQueryDto['period'] = 'month',
-    observe = false,
   ) {
     return this.history.read(
       userId,
       { uid, instrumentType: 'bond', period },
-      observe,
     );
   }
 }
@@ -85,7 +82,7 @@ export function bondQuote(
     nominal &&
     decimalFromString(nominal.value).value > ZERO_AMOUNT
       ? {
-          currency: nominal.currency,
+          currency: 'RUB',
           value: formatDecimal(
             divide(
               multiply(
@@ -99,9 +96,9 @@ export function bondQuote(
         }
       : null;
   const dirtyPrice =
-    cleanPrice && aci && aci.currency === cleanPrice.currency
+    cleanPrice && aci
       ? {
-          currency: cleanPrice.currency,
+          currency: 'RUB',
           value: formatDecimal(
             add(
               decimalFromString(cleanPrice.value),

src/modules/investments/instruments/bonds/application/bond.spec.ts

@@ -1,9 +1,9 @@
-import type { PortfolioDto } from '../../../portfolio/portfolio.api';
+import type { PortfolioDto } from '#src/modules/investments/portfolio/portfolio.api';
 
 import { instrumentPosition } from '../../application/instrument-position';
 import { bondCoupons, bondMetrics } from './bond-income.service';
 import { bondQuote } from './bond-market.service';
-jest.mock('../../../../../prisma/prisma.service', () => ({
+jest.mock('#src/prisma/prisma.service', () => ({
   PrismaService: class {},
 }));
 const time = (value: string) => ({ seconds: String(Date.parse(value) / 1000) });

src/modules/investments/instruments/bonds/infrastructure/bond-money.mapper.ts

@@ -1,10 +1 @@
-import { formatDecimal } from '../../../../../common/decimal';
-import { decimal } from '../../../../../integrations/tbank/decimal';
-import { type TbankMoney } from '../../../../../integrations/tbank/tbank.api';
-
-export function money(value?: TbankMoney) {
-  const currency = value?.currency?.toUpperCase();
-  return value && currency
-    ? { currency, value: formatDecimal(decimal(value)) }
-    : null;
-}
+export { rubMoney as money } from '#src/integrations/tbank/decimal';

src/modules/investments/instruments/bonds/presentation/bond.controller.ts

@@ -11,9 +11,9 @@ import {
 } from '@nestjs/common';
 import { ApiBearerAuth, ApiOkResponse, ApiTags } from '@nestjs/swagger';
 
-import { ApiProblemResponses } from '../../../../../common/decorators/api-safe-error-response.decorator';
-import { AccessPayload, JwtAuthGuard } from '../../../../auth/auth.api';
-import { InvestmentReadQueryDto } from '../../../investment-resource.dto';
+import { ApiProblemResponses } from '#src/common/decorators/api-safe-error-response.decorator';
+import { AccessPayload, JwtAuthGuard } from '#src/modules/auth/auth.api';
+
 import { BondCatalogService } from '../application/bond-catalog.service';
 import { BondIncomeService } from '../application/bond-income.service';
 import { BondMarketService } from '../application/bond-market.service';
@@ -47,9 +47,8 @@ export class BondController {
   metrics(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
-    return this.income.metrics(request.user.sub, uid, query.sync === 'observe');
+    return this.income.metrics(request.user.sub, uid);
   }
 
   @Get()
@@ -61,7 +60,6 @@ export class BondController {
     return this.bonds.search(
       request.user.sub,
       query.query,
-      query.sync === 'observe',
     );
   }
 
@@ -70,12 +68,10 @@ export class BondController {
   getByTicker(
     @Req() request: Request & { user: AccessPayload },
     @Param() params: BondTickerParamsDto,
-    @Query() query: InvestmentReadQueryDto,
   ) {
     return this.bonds.getByTicker(
       request.user.sub,
       params.ticker,
-      query.sync === 'observe',
     );
   }
 
@@ -84,9 +80,8 @@ export class BondController {
   get(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
-    return this.bonds.get(request.user.sub, uid, query.sync === 'observe');
+    return this.bonds.get(request.user.sub, uid);
   }
 
   @Get(':uid/quote')
@@ -94,9 +89,8 @@ export class BondController {
   quote(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
-    return this.market.quote(request.user.sub, uid, query.sync === 'observe');
+    return this.market.quote(request.user.sub, uid);
   }
 
   @Get(':uid/candles')
@@ -110,7 +104,6 @@ export class BondController {
       request.user.sub,
       uid,
       query.period,
-      query.sync === 'observe',
     );
   }
 
@@ -128,8 +121,7 @@ export class BondController {
   coupons(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
-    return this.income.coupons(request.user.sub, uid, query.sync === 'observe');
+    return this.income.coupons(request.user.sub, uid);
   }
 }

src/modules/investments/instruments/bonds/presentation/bond.dto.ts

@@ -1,7 +1,8 @@
 import { ApiProperty } from '@nestjs/swagger';
 
-import { MoneyDto } from '../../../../../common/money.dto';
-import { InvestmentResourceMetaDto } from '../../../investment-resource.dto';
+import { MoneyDto } from '#src/common/money.dto';
+import { InvestmentResourceMetaDto } from '#src/modules/investments/investment-resource.dto';
+
 import {
   StockCandlesDto,
   StockCandlesQueryDto,

src/modules/investments/instruments/domain/candle-coverage.ts

@@ -1,4 +1,4 @@
-import { MILLISECONDS_PER_DAY } from '../../../../common/time';
+import { MILLISECONDS_PER_DAY } from '#src/common/time';
 
 const FIRST_RANGE_END_INDEX = 1;
 

src/modules/investments/instruments/infrastructure/candle.repository.ts

@@ -1,10 +1,19 @@
 import { Injectable } from '@nestjs/common';
 import { createHash, randomUUID } from 'node:crypto';
 
-import type { Prisma } from '../../../../../generated/prisma/client';
-import type { TbankSyncAttempt } from '../../../../integrations/tbank/tbank.api';
+import type { Prisma } from '#generated/prisma/client';
+
+import {
+  claimSyncWork,
+  lockConnectionGeneration,
+} from '#src/integrations/tbank/tbank-sync-claim';
+import {
+  isJoinableRunningAttempt,
+  type TbankSyncAttempt,
+} from '#src/integrations/tbank/tbank.api';
+import { PrismaService } from '#src/prisma/prisma.service';
+import { toJson } from '#src/prisma/to-json';
 
-import { PrismaService } from '../../../../prisma/prisma.service';
 import {
   type CandleRange,
   confirmedCandleCoverage,
@@ -62,34 +71,30 @@ export class CandleRepository {
     priority = 1,
   ) {
     return this.prisma.$transaction(async (tx) => {
-      const current = await tx.tbankConnection.updateMany({
-        where: { ...owner, invalidToken: false },
-        data: { membershipRevision: { increment: 0 } },
-      });
-      if (!current.count) return null;
+      const current = await lockConnectionGeneration(tx, owner);
+      if (!current) return null;
       const scope = { ...owner, scopeKey };
       const previous = await tx.tbankSyncWork.findUnique({
         where: { userId_revision_scopeKey: scope },
       });
-      if (
-        previous?.state === 'running' &&
-        previous.processRunId === runId &&
-        active.has(previous.attemptId)
-      ) {
-        const previousIntent = previous.intent as Prisma.JsonObject;
+      const joinable = isJoinableRunningAttempt(previous, runId, active)
+        ? previous
+        : null;
+      if (joinable) {
+        const previousIntent = joinable.intent as Prisma.JsonObject;
         const previousNow =
           typeof previousIntent.now === 'string' ? previousIntent.now : '';
-        const nextPriority = Math.min(previous.priority, priority);
+        const nextPriority = Math.min(joinable.priority, priority);
         if (
-          nextPriority === previous.priority &&
+          nextPriority === joinable.priority &&
           (!intent.force ||
             (previousIntent.force === true &&
               (!intent.now || intent.now <= previousNow)))
         ) {
-          return { work: previous, launch: false };
+          return { work: joinable, launch: false };
         }
         const work = await tx.tbankSyncWork.update({
-          where: { id: previous.id },
+          where: { id: joinable.id },
           data: {
             priority: nextPriority,
             intent: {
@@ -115,7 +120,7 @@ export class CandleRepository {
         processRunId: runId,
         state: 'running',
         priority,
-        intent: JSON.parse(JSON.stringify(intent)) as Prisma.InputJsonObject,
+        intent: toJson(intent),
         progress: {},
         errorCode: null,
       };
@@ -163,24 +168,17 @@ export class CandleRepository {
       ).values(),
     ];
     return this.prisma.$transaction(async (tx) => {
-      const valid = await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: { progress: { lastWindow: key } },
+      const valid = await claimSyncWork(tx, attempt, {
+        progress: { lastWindow: key },
       });
-      if (!valid.count) return false;
+      if (!valid) return false;
       const identity = {
         workId: attempt.id,
         attemptId: attempt.attemptId,
         sourceKey: 'candles',
         itemKey: key,
       };
-      const payload = JSON.parse(
-        JSON.stringify({ range, candles: rows, fetchedAt }),
-      ) as Prisma.InputJsonObject;
+      const payload = toJson({ range, candles: rows, fetchedAt });
       await tx.tbankSyncStage.upsert({
         where: { workId_attemptId_sourceKey_itemKey: identity },
         create: { ...identity, payload },
@@ -196,18 +194,11 @@ export class CandleRepository {
     completeWork = true,
   ) {
     return this.prisma.$transaction(async (tx) => {
-      const claimed = await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: {
-          ...(completeWork ? { state: 'complete' } : {}),
-          errorCode: null,
-        },
+      const claimed = await claimSyncWork(tx, attempt, {
+        ...(completeWork ? { state: 'complete' } : {}),
+        errorCode: null,
       });
-      if (!claimed.count) return false;
+      if (!claimed) return false;
       const staged = await tx.tbankSyncStage.findMany({
         where: {
           workId: attempt.id,
@@ -311,28 +302,17 @@ export class CandleRepository {
         },
       });
       if (!origin) return false;
-      const result = await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: { state: 'complete', errorCode: null },
+      const result = await claimSyncWork(tx, attempt, {
+        state: 'complete',
+        errorCode: null,
       });
-      return result.count > NO_UPDATED_ROWS;
+      return result > NO_UPDATED_ROWS;
     });
   }
 
   fail(attempt: TbankSyncAttempt, errorCode: string) {
     return this.prisma.$transaction(async (tx) => {
-      await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: { state: 'failed', errorCode },
-      });
+      await claimSyncWork(tx, attempt, { state: 'failed', errorCode });
       await tx.tbankSyncStage.deleteMany({
         where: { workId: attempt.id, attemptId: attempt.attemptId },
       });

src/modules/investments/instruments/infrastructure/catalog-discovery.repository.ts

@@ -2,11 +2,11 @@ import { Injectable } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
 import { isDeepStrictEqual } from 'node:util';
 
-import type { Prisma } from '../../../../../generated/prisma/client';
-
-import { TbankErrorCode } from '../../../../integrations/tbank/tbank-error-code';
-import { isJoinableRunningAttempt, type TbankBond, type TbankShare, type TbankSyncAttempt } from '../../../../integrations/tbank/tbank.api';
-import { PrismaService } from '../../../../prisma/prisma.service';
+import { TbankErrorCode } from '#src/integrations/tbank/tbank-error-code';
+import { claimSyncWork, lockConnectionGeneration } from '#src/integrations/tbank/tbank-sync-claim';
+import { isJoinableRunningAttempt, type TbankBond, type TbankShare, type TbankSyncAttempt } from '#src/integrations/tbank/tbank.api';
+import { PrismaService } from '#src/prisma/prisma.service';
+import { toJson } from '#src/prisma/to-json';
 
 const UNCHANGED_REVISION_INCREMENT = 0;
 const REVISION_INCREMENT = 1;
@@ -159,27 +159,19 @@ export class CatalogDiscoveryRepository {
     initiator: TbankSyncAttempt = attempt,
   ) {
     return this.prisma.$transaction(async (tx) => {
-      const origin = await tx.tbankSyncWork.updateMany({
-        where: {
-          ...initiator,
-          state: { in: ['running', 'complete'] },
-          connection: { invalidToken: false },
-        },
-        data: { progress: {} },
+      const origin = await claimSyncWork(
+        tx,
+        initiator,
+        { progress: {} },
+        { state: { in: ['running', 'complete'] } },
+      );
+      if (!origin) return false;
+      const claimed = await claimSyncWork(tx, attempt, {
+        state: 'complete',
+        progress: {},
       });
-      if (!origin.count) return false;
-      const claimed = await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: { state: 'complete', progress: {} },
-      });
-      if (!claimed.count) return false;
-      const payload = JSON.parse(
-        JSON.stringify(value),
-      ) as Prisma.InputJsonObject;
+      if (!claimed) return false;
+      const payload = toJson(value);
       const identity = { provider, uid: input.uid };
       await tx.tbankInstrument.upsert({
         where: { provider_uid: identity },
@@ -202,12 +194,10 @@ export class CatalogDiscoveryRepository {
         const previous = await tx.tbankInstrument.findUniqueOrThrow({
           where: { provider_uid: identity },
         });
-        const metadata = JSON.parse(
-          JSON.stringify({
-            ...instrument,
-            instrumentType: input.instrumentType,
-          }),
-        ) as Prisma.InputJsonObject;
+        const metadata = toJson({
+          ...instrument,
+          instrumentType: input.instrumentType,
+        });
         await tx.tbankInstrument.update({
           where: { provider_uid: identity },
           data: {
@@ -284,11 +274,8 @@ export class CatalogDiscoveryRepository {
     active: ReadonlySet<string>,
   ) {
     return this.prisma.$transaction(async (tx) => {
-      const current = await tx.tbankConnection.updateMany({
-        where: { ...owner, invalidToken: false },
-        data: { membershipRevision: { increment: 0 } },
-      });
-      if (!current.count) return null;
+      const current = await lockConnectionGeneration(tx, owner);
+      if (!current) return null;
       const scope = { ...owner, scopeKey: catalogScope(input) };
       const previous = await tx.tbankSyncWork.findUnique({
         where: { userId_revision_scopeKey: scope },
@@ -341,34 +328,28 @@ export class CatalogDiscoveryRepository {
     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: {} },
+      const claimed = await claimSyncWork(tx, attempt, {
+        state: 'complete',
+        progress: {},
       });
-      if (!claimed.count) return false;
+      if (!claimed) return false;
       for (const instrument of instruments) {
         // Discovery can create a minimal identity, but cannot overwrite verified metadata.
         const identity = { provider, uid: instrument.uid };
-        const payload = JSON.parse(
-          JSON.stringify({
-            uid: instrument.uid,
-            figi: instrument.figi,
-            ticker: instrument.ticker,
-            name: instrument.name,
-            isin: instrument.isin,
-            classCode: instrument.classCode,
-            instrumentKind: instrument.instrumentKind,
-            apiTradeAvailableFlag: instrument.apiTradeAvailableFlag,
-            currency: instrument.currency,
-            brand: instrument.brand
-              ? { logoName: instrument.brand.logoName }
-              : undefined,
-          }),
-        ) as Prisma.InputJsonObject;
+        const payload = toJson({
+          uid: instrument.uid,
+          figi: instrument.figi,
+          ticker: instrument.ticker,
+          name: instrument.name,
+          isin: instrument.isin,
+          classCode: instrument.classCode,
+          instrumentKind: instrument.instrumentKind,
+          apiTradeAvailableFlag: instrument.apiTradeAvailableFlag,
+          currency: instrument.currency,
+          brand: instrument.brand
+            ? { logoName: instrument.brand.logoName }
+            : undefined,
+        });
         await tx.tbankInstrument.upsert({
           where: { provider_uid: identity },
           update: {},
@@ -461,6 +442,7 @@ export class CatalogDiscoveryRepository {
 
   finish(attempt: TbankSyncAttempt, success: boolean) {
     return this.prisma.$transaction(async (tx) => {
+      // Fails sibling attempts whose connection was invalidated mid-flight.
       await tx.tbankSyncWork.updateMany({
         where: {
           ...attempt,
@@ -469,16 +451,9 @@ export class CatalogDiscoveryRepository {
         },
         data: { state: 'failed', errorCode: TbankErrorCode.InvalidToken },
       });
-      await tx.tbankSyncWork.updateMany({
-        where: {
-          ...attempt,
-          state: 'running',
-          connection: { invalidToken: false },
-        },
-        data: {
-          state: success ? 'complete' : 'failed',
-          errorCode: success ? null : TbankErrorCode.Unavailable,
-        },
+      await claimSyncWork(tx, attempt, {
+        state: success ? 'complete' : 'failed',
+        errorCode: success ? null : TbankErrorCode.Unavailable,
       });
     });
   }

src/modules/investments/instruments/infrastructure/tbank-candle.mapper.ts

@@ -1,8 +1,10 @@
-import type { TbankCandle } from '../../../../integrations/tbank/tbank.api';
+import type { TbankCandle } from '#src/integrations/tbank/tbank.api';
+
+import { formatDecimal } from '#src/common/decimal';
+import { decimal } from '#src/integrations/tbank/decimal';
+
 import type { SavedCandle } from '../domain/candle-coverage';
 
-import { formatDecimal } from '../../../../common/decimal';
-import { decimal } from '../../../../integrations/tbank/decimal';
 import { timestamp } from '../application/instrument-market';
 
 function toSavedCandle(candle: TbankCandle): SavedCandle {

src/modules/investments/instruments/instrument-sources.module.ts

@@ -1,11 +1,13 @@
 import { Module } from '@nestjs/common';
 
-import { MoexModule } from '../../../integrations/moex/moex.module';
-import { NcrModule } from '../../../integrations/ncr/ncr.module';
-import { TbankModule } from '../../../integrations/tbank/tbank.module';
+import { MoexModule } from '#src/integrations/moex/moex.module';
+import { NcrModule } from '#src/integrations/ncr/ncr.module';
+import { TbankModule } from '#src/integrations/tbank/tbank.module';
+
 import { CandleService } from './application/candle.service';
 import { CatalogDiscoveryService } from './application/catalog-discovery.service';
 import { CatalogEnrichmentService } from './application/catalog-enrichment.service';
+import { CatalogSourceLoader } from './application/catalog-source.loader';
 import { CandleRepository } from './infrastructure/candle.repository';
 import { CatalogDiscoveryRepository } from './infrastructure/catalog-discovery.repository';
 
@@ -15,6 +17,7 @@ import { CatalogDiscoveryRepository } from './infrastructure/catalog-discovery.r
     CandleService,
     CandleRepository,
     CatalogEnrichmentService,
+    CatalogSourceLoader,
     CatalogDiscoveryService,
     CatalogDiscoveryRepository,
   ],

src/modules/investments/instruments/instruments.module.ts

@@ -1,6 +1,7 @@
 import { Module } from '@nestjs/common';
 
-import { TbankModule } from '../../../integrations/tbank/tbank.module';
+import { TbankModule } from '#src/integrations/tbank/tbank.module';
+
 import { AuthModule } from '../../auth/auth.module';
 import { PortfolioModule } from '../portfolio/portfolio.module';
 import { BondCatalogService } from './bonds/application/bond-catalog.service';

src/modules/investments/instruments/stocks/application/get-stock-company.use-case.ts

@@ -1,6 +1,6 @@
 import { Injectable } from '@nestjs/common';
 
-import type { TbankFundamentals } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankFundamentals } from '#src/integrations/tbank/tbank.api';
 
 import { CatalogEnrichmentService } from '../../application/catalog-enrichment.service';
 import {
@@ -13,14 +13,12 @@ export class GetStockCompanyUseCase {
   async execute(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<StockCompanyResourceDto> {
     const result = await this.sources.section(
       userId,
       'share',
       uid,
       'company',
-      observe,
     );
     return {
       data: result.values.instrument
@@ -72,16 +70,17 @@ export function metrics(
     // eslint-disable-next-line security/detect-object-injection -- Keys come from the fixed metric selection declared above.
     const value = values[key];
     const currency = values.currency?.toUpperCase() || null;
+    const rub = currency === 'RUB';
     return typeof value === 'number' &&
       Number.isFinite(value) &&
-      (unit !== 'money' || currency)
+      (unit !== 'money' || rub)
       ? [
           {
             key,
             value,
             unit,
             period,
-            currency: unit === 'money' ? currency : null,
+            currency: unit === 'money' ? 'RUB' : null,
           },
         ]
       : [];

src/modules/investments/instruments/stocks/application/stock-catalog.service.ts

@@ -1,9 +1,10 @@
 import { Injectable } from '@nestjs/common';
 
-import type { TbankShare } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankShare } from '#src/integrations/tbank/tbank.api';
+
+import { formatDecimal } from '#src/common/decimal';
+import { decimal } from '#src/integrations/tbank/decimal';
 
-import { formatDecimal } from '../../../../../common/decimal';
-import { decimal } from '../../../../../integrations/tbank/decimal';
 import { CatalogDiscoveryService } from '../../application/catalog-discovery.service';
 import { timestamp } from '../../application/instrument-market';
 import {
@@ -22,12 +23,10 @@ export class StockCatalogService {
   async search(
     userId: string,
     query: string,
-    observe = false,
   ): Promise<StockSearchResourceDto> {
     const result = await this.discovery.search(
       userId,
       { instrumentType: 'share', query },
-      observe,
     );
     return {
       ...result,
@@ -46,7 +45,7 @@ export class StockCatalogService {
             price:
               last?.price && detail.currency
                 ? {
-                    currency: detail.currency,
+                    currency: 'RUB',
                     value: formatDecimal(decimal(last.price)),
                   }
                 : null,
@@ -59,9 +58,8 @@ export class StockCatalogService {
   async get(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<StockResourceDto> {
-    const result = await this.discovery.detail(userId, 'share', uid, observe);
+    const result = await this.discovery.detail(userId, 'share', uid);
     return {
       ...result,
       data: result.data
@@ -73,13 +71,11 @@ export class StockCatalogService {
   async getByTicker(
     userId: string,
     ticker: string,
-    observe = false,
   ): Promise<StockResourceDto> {
     const result = await this.discovery.byTicker(
       userId,
       'share',
       ticker,
-      observe,
     );
     return {
       ...result,

src/modules/investments/instruments/stocks/application/stock-income.service.ts

@@ -4,18 +4,19 @@ import {
   decimalFromString,
   formatDecimal,
   multiply,
-} from '../../../../../common/decimal';
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../../common/time';
-import { decimal } from '../../../../../integrations/tbank/decimal';
+} from '#src/common/decimal';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+import { rubMoney } from '#src/integrations/tbank/decimal';
 import {
   TbankAccessService,
   type TbankDividend,
   tbankSourceNeedsRefresh,
-} from '../../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
 import {
   ForecastService,
   PortfolioService,
-} from '../../../portfolio/portfolio.api';
+} from '#src/modules/investments/portfolio/portfolio.api';
+
 import { CatalogEnrichmentService } from '../../application/catalog-enrichment.service';
 import { moscowDay, timestamp } from '../../application/instrument-market';
 import { instrumentPosition } from '../../application/instrument-position';
@@ -51,7 +52,6 @@ export class StockIncomeService {
   async dividends(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<StockDividendsResourceDto> {
     const connection = await this.access.local(userId);
     const today = moscowDay(new Date().toISOString());
@@ -62,7 +62,7 @@ export class StockIncomeService {
       userId,
       'share',
       [uid],
-      observe,
+      false,
       ['detail', 'dividends'],
       { from, to },
     );
@@ -131,11 +131,7 @@ export function stockDividends(
       const recordDate = timestamp(event.recordDate)?.slice(ISO_DATE_START, ISO_DATE_LENGTH) ?? null;
       const paymentDate = timestamp(event.paymentDate)?.slice(ISO_DATE_START, ISO_DATE_LENGTH) ?? null;
       const lastBuyDate = timestamp(event.lastBuyDate)?.slice(ISO_DATE_START, ISO_DATE_LENGTH) ?? null;
-      const currency = event.dividendNet?.currency?.toUpperCase();
-      const perShare =
-        currency && event.dividendNet
-          ? { currency, value: formatDecimal(decimal(event.dividendNet)) }
-          : null;
+      const perShare = rubMoney(event.dividendNet);
       // A future payment can have an already-fixed register: keep the event, but do not estimate entitlement from today's holding.
       const eventDate = paymentDate ?? recordDate;
       const timing: StockDividendDto['timing'] = eventDate
@@ -150,7 +146,7 @@ export function stockDividends(
         recordDate >= today &&
         timing === 'upcoming'
           ? {
-              currency: perShare.currency,
+              currency: 'RUB',
               value: formatDecimal(
                 multiply(quantity, decimalFromString(perShare.value)),
               ),

src/modules/investments/instruments/stocks/application/stock-market.service.ts

@@ -6,9 +6,10 @@ import {
   formatDecimal,
   multiply,
   subtract,
-} from '../../../../../common/decimal';
-import { ISO_DATE_LENGTH, ISO_DATE_START } from '../../../../../common/time';
-import { decimal } from '../../../../../integrations/tbank/decimal';
+} from '#src/common/decimal';
+import { ISO_DATE_LENGTH, ISO_DATE_START } from '#src/common/time';
+import { rubMoney } from '#src/integrations/tbank/decimal';
+
 import { CandleService } from '../../application/candle.service';
 import {
   CatalogEnrichmentService,
@@ -34,14 +35,12 @@ export class StockMarketService {
   async quote(
     userId: string,
     uid: string,
-    observe = false,
   ): Promise<StockQuoteResourceDto> {
     const result = await this.sources.section(
       userId,
       'share',
       uid,
       'quote',
-      observe,
     );
     return {
       data: result.values.instrument
@@ -55,12 +54,10 @@ export class StockMarketService {
     userId: string,
     uid: string,
     period: StockCandlesQueryDto['period'] = 'month',
-    observe = false,
   ) {
     return this.history.read(
       userId,
       { uid, instrumentType: 'share', period },
-      observe,
     );
   }
 }
@@ -73,15 +70,8 @@ export function stockQuote(
   const { price: last, candle: previous, tradingStatus = null } = values;
   const share = values.instrument;
   const priceAt = timestamp(last?.time);
-  const currency = share?.currency?.toUpperCase();
-  const price =
-    last?.price && currency
-      ? { currency, value: formatDecimal(decimal(last.price)) }
-      : null;
-  const previousPrice =
-    previous?.close && currency
-      ? { currency, value: formatDecimal(decimal(previous.close)) }
-      : null;
+  const price = last?.price ? rubMoney({ ...last.price, currency: share?.currency }) : null;
+  const previousPrice = previous?.close ? rubMoney({ ...previous.close, currency: share?.currency }) : null;
   const difference =
     price && previousPrice
       ? subtract(
@@ -96,8 +86,8 @@ export function stockQuote(
     previousCloseDate: timestamp(previous?.time)?.slice(ISO_DATE_START, ISO_DATE_LENGTH) ?? null,
     previousClose: previousPrice,
     change:
-      difference && currency
-        ? { currency, value: formatDecimal(difference) }
+      difference
+        ? { currency: 'RUB', value: formatDecimal(difference) }
         : null,
     changePercent:
       difference &&

src/modules/investments/instruments/stocks/application/stock-screener.service.spec.ts

@@ -1,10 +1,10 @@
-jest.mock('../../../../../integrations/tbank/tbank.api', () => ({
+jest.mock('#src/integrations/tbank/tbank.api', () => ({
   TbankAccessService: class {},
 }));
 
 import { NotFoundException, ServiceUnavailableException } from '@nestjs/common';
 
-import type { TbankShare } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankShare } from '#src/integrations/tbank/tbank.api';
 
 import { StockScreenerService } from './stock-screener.service';
 
@@ -87,7 +87,6 @@ describe('StockScreenerService', () => {
     client.getAllShares.mockResolvedValueOnce([
       share(1, {
         countryOfRisk: undefined,
-        currency: undefined,
         isin: undefined,
         realExchange: undefined,
         sector: undefined,
@@ -96,7 +95,7 @@ describe('StockScreenerService', () => {
       }),
     ]);
     const result = await service.search('user-1', {});
-    expect(result.items[0]).toEqual(expect.objectContaining({ countryOfRisk: null, currency: null, isin: null, logoName: null, ticker: null }));
+    expect(result.items[0]).toEqual(expect.objectContaining({ countryOfRisk: null, currency: 'RUB', isin: null, logoName: null, ticker: null }));
 
     client.getAllShares.mockResolvedValueOnce([share(2, { name: ' ' })]);
     await expect(service.search('user-1', {})).rejects.toBeInstanceOf(ServiceUnavailableException);

src/modules/investments/instruments/stocks/application/stock-screener.service.ts

@@ -6,11 +6,12 @@ import {
 } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
 
-import type { TbankShare } from '../../../../../integrations/tbank/tbank-market.types';
+import type { TbankShare } from '#src/integrations/tbank/tbank-market.types';
+
+import { StructuredLogger } from '#src/common/logging/structured-logger.service';
+import { TbankAccessService } from '#src/integrations/tbank/tbank.api';
+import { TbankClient } from '#src/integrations/tbank/tbank.client';
 
-import { StructuredLogger } from '../../../../../common/logging/structured-logger.service';
-import { TbankAccessService } from '../../../../../integrations/tbank/tbank.api';
-import { TbankClient } from '../../../../../integrations/tbank/tbank.client';
 import {
   selectStockScreenerInstruments,
   type StockScreenerConditions,

src/modules/investments/instruments/stocks/application/stock.spec.ts

@@ -2,7 +2,7 @@ import { previousClose } from '../../application/instrument-market';
 import { metrics } from './get-stock-company.use-case';
 import { stockDividends } from './stock-income.service';
 import { stockQuote } from './stock-market.service';
-jest.mock('../../../../../prisma/prisma.service', () => ({
+jest.mock('#src/prisma/prisma.service', () => ({
   PrismaService: class {},
 }));
 const time = (value: string) => ({ seconds: String(Date.parse(value) / 1000) });

src/modules/investments/instruments/stocks/domain/stock-screener-selection.rules.spec.ts

@@ -1,4 +1,4 @@
-import type { TbankShare } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankShare } from '#src/integrations/tbank/tbank.api';
 
 import { selectStockScreenerInstruments } from './stock-screener-selection.rules';
 
@@ -29,16 +29,23 @@ describe('selectStockScreenerInstruments', () => {
           share({ isin: 'D', sector: 'finance', uid: 'uid-4' }),
         ],
       },
-      { currency: 'RUB', query: 'star', sector: 'energy' },
+      { query: 'star', sector: 'energy' },
     );
 
     expect(result).toEqual({ asOf, instruments: [share({ isin: 'A', sector: 'energy' })] });
   });
 
+  it('filters out non-RUB instruments', () => {
+    const result = selectStockScreenerInstruments(
+      { asOf, instruments: [share({ currency: 'USD' }), share({ currency: undefined })] },
+      {},
+    );
+    expect(result.instruments).toEqual([]);
+  });
+
   it.each([
     ['sector', { sector: 'energy' }, share({ sector: undefined })],
     ['share type', { shareType: 'common' }, share({ shareType: 'preferred' })],
-    ['currency', { currency: 'USD' }, share({ currency: undefined })],
     ['exchange', { realExchange: 'MOEX' }, share({ realExchange: undefined })],
     ['country of risk', { countryOfRisk: 'RU' }, share({ countryOfRisk: 'US' })],
     ['query', { query: 'star' }, share({ name: undefined, ticker: undefined })],

src/modules/investments/instruments/stocks/domain/stock-screener-selection.rules.ts

@@ -1,4 +1,4 @@
-import type { TbankShare } from '../../../../../integrations/tbank/tbank.api';
+import type { TbankShare } from '#src/integrations/tbank/tbank.api';
 
 export type StockScreenerCatalog = {
   asOf: Date;
@@ -7,7 +7,6 @@ export type StockScreenerCatalog = {
 
 export type StockScreenerConditions = {
   countryOfRisk?: string;
-  currency?: string;
   maxLot?: number;
   query?: string;
   realExchange?: string;
@@ -76,12 +75,7 @@ function matches(
   ) {
     return false;
   }
-  if (
-    conditions.currency !== undefined &&
-    instrument.currency !== conditions.currency
-  ) {
-    return false;
-  }
+  if (instrument.currency?.toUpperCase() !== 'RUB') return false;
   if (
     conditions.realExchange !== undefined &&
     instrument.realExchange !== conditions.realExchange

src/modules/investments/instruments/stocks/presentation/stock.controller.ts

@@ -17,9 +17,9 @@ import {
 } from '@nestjs/common';
 import { ApiBearerAuth, ApiOkResponse, ApiOperation, ApiTags } from '@nestjs/swagger';
 
-import { ApiProblemResponses } from '../../../../../common/decorators/api-safe-error-response.decorator';
-import { AccessPayload, JwtAuthGuard } from '../../../../auth/auth.api';
-import { InvestmentReadQueryDto } from '../../../investment-resource.dto';
+import { ApiProblemResponses } from '#src/common/decorators/api-safe-error-response.decorator';
+import { AccessPayload, JwtAuthGuard } from '#src/modules/auth/auth.api';
+
 import { GetStockCompanyUseCase } from '../application/get-stock-company.use-case';
 import { StockCatalogService } from '../application/stock-catalog.service';
 import { StockIncomeService } from '../application/stock-income.service';
@@ -64,7 +64,6 @@ export class StockController {
     return this.stocks.search(
       request.user.sub,
       query.query,
-      query.sync === 'observe',
     );
   }
 
@@ -73,12 +72,10 @@ export class StockController {
   getByTicker(
     @Req() request: Request & { user: AccessPayload },
     @Param() params: StockTickerParamsDto,
-    @Query() query: InvestmentReadQueryDto,
   ) {
     return this.stocks.getByTicker(
       request.user.sub,
       params.ticker,
-      query.sync === 'observe',
     );
   }
 
@@ -92,7 +89,7 @@ export class StockController {
     criteria: StockScreenerCriteriaDto,
   ) {
     // The global whitelist pipe strips unknown keys before this param pipe runs, so only the raw body can reject them.
-    const allowed = new Set(['countryOfRisk', 'currency', 'maxLot', 'query', 'realExchange', 'sector', 'shareType']);
+    const allowed = new Set(['countryOfRisk', 'maxLot', 'query', 'realExchange', 'sector', 'shareType']);
     if (Object.keys(request.body as object).some((key) => !allowed.has(key))) {
       throw new BadRequestException();
     }
@@ -115,9 +112,8 @@ export class StockController {
   get(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
-    return this.stocks.get(request.user.sub, uid, query.sync === 'observe');
+    return this.stocks.get(request.user.sub, uid);
   }
 
   @Get(':uid/quote')
@@ -125,9 +121,8 @@ export class StockController {
   quote(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
-    return this.market.quote(request.user.sub, uid, query.sync === 'observe');
+    return this.market.quote(request.user.sub, uid);
   }
 
   @Get(':uid/candles')
@@ -141,7 +136,6 @@ export class StockController {
       request.user.sub,
       uid,
       query.period,
-      query.sync === 'observe',
     );
   }
 
@@ -159,12 +153,10 @@ export class StockController {
   company(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
     return this.companyInfo.execute(
       request.user.sub,
       uid,
-      query.sync === 'observe',
     );
   }
 
@@ -173,12 +165,10 @@ export class StockController {
   dividends(
     @Req() request: Request & { user: AccessPayload },
     @Param('uid', new ParseUUIDPipe()) uid: string,
-    @Query() query: InvestmentReadQueryDto,
   ) {
     return this.income.dividends(
       request.user.sub,
       uid,
-      query.sync === 'observe',
     );
   }
 }

src/modules/investments/instruments/stocks/presentation/stock.dto.ts

@@ -11,16 +11,15 @@ import {
   MinLength,
 } from 'class-validator';
 
-import { MoneyDto } from '../../../../../common/money.dto';
+import { MoneyDto } from '#src/common/money.dto';
 import {
   MAX_INSTRUMENT_QUERY_LENGTH,
   MIN_INSTRUMENT_QUERY_LENGTH,
-} from '../../../instrument-query';
+} from '#src/modules/investments/instrument-query';
 import {
-  InvestmentReadQueryDto,
   InvestmentResourceMetaDto,
-} from '../../../investment-resource.dto';
-import { PortfolioPositionDto } from '../../../portfolio/portfolio.api';
+} from '#src/modules/investments/investment-resource.dto';
+import { PortfolioPositionDto } from '#src/modules/investments/portfolio/portfolio.api';
 
 const MIN_TICKER_LENGTH = 1;
 const MAX_SCREENER_QUERY_LENGTH = 80;
@@ -53,7 +52,6 @@ export class StockScreenerCriteriaDto {
   @IsOptional()
   @IsString()
   @MinLength(MIN_TICKER_LENGTH)
-  currency?: string;
 
   @ApiPropertyOptional({ minLength: MIN_TICKER_LENGTH })
   @IsOptional()
@@ -104,7 +102,7 @@ export class StockScreenerPageDto {
   @ApiProperty({ type: StockScreenerItemDto, isArray: true, maxItems: 30 }) declare items: StockScreenerItemDto[];
 }
 
-export class StockSearchQueryDto extends InvestmentReadQueryDto {
+export class StockSearchQueryDto {
   @ApiProperty({ minLength: MIN_INSTRUMENT_QUERY_LENGTH, maxLength: MAX_INSTRUMENT_QUERY_LENGTH })
   @Transform(({ value }: { value: unknown }) =>
     typeof value === 'string' ? value.trim() : value,
@@ -126,7 +124,7 @@ export class StockTickerParamsDto {
   @Matches(/^[A-Z0-9][\w.@+-]*$/i)
   declare ticker: string;
 }
-export class StockCandlesQueryDto extends InvestmentReadQueryDto {
+export class StockCandlesQueryDto {
   @ApiPropertyOptional({
     enum: ['month', 'halfYear', 'year', 'all'],
     default: 'month',

src/modules/investments/investment-resource.dto.ts

@@ -1,5 +1,4 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
-import { IsIn, IsOptional } from 'class-validator';
 
 export const availabilityValues = [
   'available',
@@ -17,13 +16,6 @@ export const attemptStateValues = [
   'failed',
 ] as const;
 
-export class InvestmentReadQueryDto {
-  @ApiPropertyOptional({ enum: ['observe'] })
-  @IsOptional()
-  @IsIn(['observe'])
-  declare sync?: 'observe';
-}
-
 export class InvestmentAttemptProblemDto {
   @ApiProperty({ enum: ['membership', 'portfolio', 'operations', 'events'] })
   declare section: 'events' | 'membership' | 'operations' | 'portfolio';

src/modules/investments/market-index/market-index.module.ts

@@ -0,0 +1,13 @@
+import { Module } from '@nestjs/common';
+
+import { MoexModule } from '#src/integrations/moex/moex.module';
+
+import { MarketIndexRepository } from './market-index.repository';
+import { MarketIndexHistoryService } from './market-index.service';
+
+@Module({
+  imports: [MoexModule],
+  providers: [MarketIndexHistoryService, MarketIndexRepository],
+  exports: [MarketIndexHistoryService],
+})
+export class MarketIndexModule {}

src/modules/investments/market-index/market-index.repository.ts

@@ -0,0 +1,52 @@
+import { Injectable } from '@nestjs/common';
+
+import type { MoexIndexClose } from '#src/integrations/moex/moex.client';
+
+import { PrismaService } from '#src/prisma/prisma.service';
+
+@Injectable()
+export class MarketIndexRepository {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async read(secid: 'IMOEX' | 'MCFTRR', from: string, to: string) {
+    const [closes, state] = await Promise.all([
+      this.prisma.marketIndexDailyClose.findMany({
+        where: { secid, tradeDate: { gte: from, lte: to } },
+        orderBy: { tradeDate: 'asc' },
+      }),
+      this.prisma.marketIndexSyncState.findUnique({ where: { secid } }),
+    ]);
+    return { closes, state };
+  }
+
+  async attempt(secid: 'IMOEX' | 'MCFTRR', at: Date) {
+    await this.prisma.marketIndexSyncState.upsert({
+      where: { secid }, create: { secid, lastAttemptAt: at }, update: { lastAttemptAt: at },
+    });
+  }
+
+  // coveredTo is the `till` MOEX answered for: a close for today that is not
+  // published yet is re-checked by the service while the last close < to.
+  async save(secid: 'IMOEX' | 'MCFTRR', closes: MoexIndexClose[], from: string, to: string, at: Date) {
+    await this.prisma.$transaction(async (tx) => {
+      for (const close of closes) {
+        await tx.marketIndexDailyClose.upsert({
+          where: { secid_tradeDate: { secid, tradeDate: close.tradeDate } },
+          create: { secid, ...close },
+          update: { close: close.close },
+        });
+      }
+      const state = await tx.marketIndexSyncState.findUniqueOrThrow({ where: { secid } });
+      const joined = Boolean(state.coveredFrom && state.coveredTo &&
+        from <= state.coveredTo && to >= state.coveredFrom);
+      await tx.marketIndexSyncState.update({
+        where: { secid },
+        data: {
+          lastSuccessAt: at,
+          coveredFrom: joined && state.coveredFrom && state.coveredFrom < from ? state.coveredFrom : from,
+          coveredTo: joined && state.coveredTo && state.coveredTo > to ? state.coveredTo : to,
+        },
+      });
+    });
+  }
+}

src/modules/investments/market-index/market-index.service.spec.ts

@@ -0,0 +1,121 @@
+import { MarketIndexHistoryService } from './market-index.service';
+
+jest.mock('./market-index.repository', () => ({ MarketIndexRepository: class {} }));
+
+type State = {
+  coveredFrom: null | string;
+  coveredTo: null | string;
+  lastAttemptAt: Date | null;
+  lastSuccessAt: Date | null;
+};
+type Close = { close: string; tradeDate: string };
+
+const HOUR_MS = 3_600_000;
+
+// In-memory stand-in mirroring the repository's merge rules.
+function setup(history: Close[]) {
+  let state: null | State = null;
+  const stored = new Map<string, string>();
+  const repository = {
+    read: jest.fn((_: string, from: string, to: string) => Promise.resolve({
+      closes: [...stored.entries()]
+        .filter(([date]) => date >= from && date <= to)
+        .sort(([a], [b]) => a.localeCompare(b))
+        .map(([tradeDate, close]) => ({ tradeDate, close })),
+      state: state && { ...state },
+    })),
+    attempt: jest.fn((_: string, at: Date) => {
+      state = { coveredFrom: null, coveredTo: null, lastSuccessAt: null, ...state, lastAttemptAt: at };
+      return Promise.resolve();
+    }),
+    save: jest.fn((_: string, closes: Close[], from: string, to: string, at: Date) => {
+      for (const close of closes) stored.set(close.tradeDate, close.close);
+      const current = state as State;
+      const joined = Boolean(current.coveredFrom && current.coveredTo &&
+        from <= current.coveredTo && to >= current.coveredFrom);
+      state = {
+        ...current,
+        lastSuccessAt: at,
+        coveredFrom: joined && current.coveredFrom && current.coveredFrom < from ? current.coveredFrom : from,
+        coveredTo: joined && current.coveredTo && current.coveredTo > to ? current.coveredTo : to,
+      };
+      return Promise.resolve();
+    }),
+  };
+  const moex = {
+    indexHistory: jest.fn((_: string, from: string, till: string) => Promise.resolve(
+      history.filter((row) => row.tradeDate >= from && row.tradeDate <= till),
+    )),
+  };
+  const service = new MarketIndexHistoryService(
+    repository as never, moex as never, { event: jest.fn() } as never,
+  );
+  return { service, moex, setHistory: (rows: Close[]) => history.splice(0, history.length, ...rows) };
+}
+
+const closes = (...dates: string[]) => dates.map((tradeDate) => ({ tradeDate, close: '100' }));
+
+describe('MarketIndexHistoryService', () => {
+  afterEach(() => jest.useRealTimers());
+
+  it('loads a ten-day lookback once and reuses the confirmed range', async () => {
+    const { service, moex } = setup(closes('2026-09-30', '2026-10-02', '2026-10-05'));
+    expect(await service.read('MCFTRR', '2026-10-02', '2026-10-05')).toHaveLength(3);
+    expect(await service.read('MCFTRR', '2026-10-02', '2026-10-05')).toHaveLength(3);
+    expect(moex.indexHistory).toHaveBeenCalledTimes(1);
+    expect(moex.indexHistory).toHaveBeenCalledWith('MCFTRR', '2026-09-22', '2026-10-05');
+  });
+
+  it('extends history backward at once, even right after a successful load', async () => {
+    const { service, moex } = setup(closes('2023-01-03', '2026-09-30', '2026-10-05'));
+    await service.read('MCFTRR', '2026-10-01', '2026-10-05');
+    expect(await service.read('MCFTRR', '2023-01-05', '2026-10-05')).toHaveLength(3);
+    expect(moex.indexHistory).toHaveBeenLastCalledWith('MCFTRR', '2022-12-26', '2026-10-05');
+  });
+
+  it('re-checks a missing tail close after an hour, but not sooner', async () => {
+    jest.useFakeTimers({ now: new Date('2026-10-05T12:00:00Z') });
+    const { service, moex, setHistory } = setup(closes('2026-09-30', '2026-10-02'));
+    await service.read('MCFTRR', '2026-10-02', '2026-10-05');
+    setHistory(closes('2026-09-30', '2026-10-02', '2026-10-05'));
+    await service.read('MCFTRR', '2026-10-02', '2026-10-05');
+    expect(moex.indexHistory).toHaveBeenCalledTimes(1);
+    jest.setSystemTime(Date.now() + HOUR_MS + 1);
+    const rows = await service.read('MCFTRR', '2026-10-02', '2026-10-05');
+    expect(rows?.at(-1)?.tradeDate).toBe('2026-10-05');
+    expect(moex.indexHistory).toHaveBeenCalledTimes(2);
+  });
+
+  it('keeps saved history usable when a later refresh fails and throttles retries', async () => {
+    jest.useFakeTimers({ now: new Date('2026-10-05T12:00:00Z') });
+    const { service, moex } = setup(closes('2026-09-30', '2026-10-02'));
+    await service.read('MCFTRR', '2026-10-02', '2026-10-02');
+    jest.setSystemTime(Date.now() + 1000);
+    moex.indexHistory.mockRejectedValue(new Error('MOEX down'));
+    expect(await service.read('MCFTRR', '2026-10-02', '2026-10-05')).toHaveLength(2);
+    expect(await service.read('MCFTRR', '2026-10-02', '2026-10-05')).toHaveLength(2);
+    expect(moex.indexHistory).toHaveBeenCalledTimes(2);
+  });
+
+  it('returns no history when nothing was ever loaded and MOEX fails', async () => {
+    const { service, moex } = setup([]);
+    moex.indexHistory.mockRejectedValue(new Error('MOEX down'));
+    expect(await service.read('MCFTRR', '2026-10-02', '2026-10-05')).toBeNull();
+  });
+
+  it('refuses a range that does not reach the last cash flow', async () => {
+    const { service, moex } = setup(closes('2026-09-30', '2026-10-02'));
+    await service.read('MCFTRR', '2026-10-02', '2026-10-02');
+    moex.indexHistory.mockRejectedValue(new Error('MOEX down'));
+    expect(await service.read('MCFTRR', '2026-10-02', '2026-10-09', '2026-10-08')).toBeNull();
+  });
+
+  it('shares one request for parallel reads', async () => {
+    const { service, moex } = setup(closes('2026-09-30', '2026-10-02'));
+    await Promise.all([
+      service.read('IMOEX', '2026-10-02', '2026-10-05'),
+      service.read('IMOEX', '2026-10-02', '2026-10-05'),
+    ]);
+    expect(moex.indexHistory).toHaveBeenCalledTimes(1);
+  });
+});

src/modules/investments/market-index/market-index.service.ts

@@ -0,0 +1,115 @@
+import { Injectable } from '@nestjs/common';
+
+import { StructuredLogger } from '#src/common/logging/structured-logger.service';
+import { MoexClient, type MoexIndexClose } from '#src/integrations/moex/moex.client';
+
+import { MarketIndexRepository } from './market-index.repository';
+
+const HOUR_MS = 3_600_000;
+const LOOKBACK_DAYS = 10;
+const ISO_DATE_LENGTH = 10;
+const ISO_DATE_START = 0;
+const LAST_CLOSE = -1;
+const MAX_REFRESH_ROUNDS = 2;
+const FIRST_ROUND = 0;
+
+type IndexId = 'IMOEX' | 'MCFTRR';
+type Saved = Awaited<ReturnType<MarketIndexRepository['read']>>;
+
+function shiftDays(date: string, days: number): string {
+  const value = new Date(`${date}T00:00:00Z`);
+  value.setUTCDate(value.getUTCDate() + days);
+  return value.toISOString().slice(ISO_DATE_START, ISO_DATE_LENGTH);
+}
+
+function within(at: Date | null | undefined, ms: number) {
+  return Boolean(at && Date.now() - at.valueOf() < ms);
+}
+
+@Injectable()
+export class MarketIndexHistoryService {
+  private readonly pending = new Map<IndexId, Promise<void>>();
+
+  constructor(
+    private readonly repository: MarketIndexRepository,
+    private readonly moex: MoexClient,
+    private readonly logger: StructuredLogger,
+  ) {}
+
+  /**
+   * Closes covering [from − 10 days, to]. `requiredThrough` is the latest date
+   * that must have a close on or after it (the last cash flow); null when the
+   * confirmed history does not cover the period.
+   */
+  async read(
+    secid: IndexId,
+    from: string,
+    to: string,
+    requiredThrough = from,
+  ): Promise<MoexIndexClose[] | null> {
+    const rangeFrom = shiftDays(from, -LOOKBACK_DAYS);
+    let saved = await this.repository.read(secid, rangeFrom, to);
+    for (let round = FIRST_ROUND; round < MAX_REFRESH_ROUNDS; round++) {
+      const range = this.refreshRange(saved, rangeFrom, to);
+      if (!range) break;
+      const job = this.pending.get(secid) ?? this.start(secid, range.from, to);
+      await job;
+      saved = await this.repository.read(secid, rangeFrom, to);
+    }
+    return this.covered(saved, from, rangeFrom, to, requiredThrough)
+      ? saved.closes.map(({ tradeDate, close }) => ({ tradeDate, close }))
+      : null;
+  }
+
+  // coveredFrom..coveredTo is the range MOEX was successfully asked about.
+  // Extending it backward is fetched at once; an unpublished tail close is
+  // re-checked at most hourly; a failed attempt is retried at most hourly.
+  private refreshRange(saved: Saved, rangeFrom: string, to: string) {
+    const state = saved.state;
+    const lastAttempt = state?.lastAttemptAt ?? null;
+    const lastSuccess = state?.lastSuccessAt ?? null;
+    // Success is stamped with its own attempt time, so equal means success.
+    const failed = lastAttempt !== null && (lastSuccess === null || lastSuccess.valueOf() !== lastAttempt.valueOf());
+    if (failed && within(lastAttempt, HOUR_MS)) return null;
+    if (!state?.coveredFrom || !state.coveredTo || state.coveredFrom > rangeFrom) return { from: rangeFrom };
+    if (state.coveredTo < to) return { from: state.coveredTo };
+    const last = saved.closes.at(LAST_CLOSE)?.tradeDate;
+    if ((!last || last < to) && !within(lastSuccess, HOUR_MS)) return { from: last ?? rangeFrom };
+    return null;
+  }
+
+  private covered(saved: Saved, from: string, rangeFrom: string, to: string, requiredThrough: string) {
+    const last = saved.closes.at(LAST_CLOSE)?.tradeDate;
+    return Boolean(
+      saved.state?.coveredFrom && saved.state.coveredFrom <= rangeFrom &&
+      saved.closes.some((row) => row.tradeDate <= from) &&
+      last && last >= shiftDays(to, -LOOKBACK_DAYS) &&
+      // The last cash flow must lie inside the checked range, otherwise it
+      // would be priced by a stale close.
+      saved.state.coveredTo && saved.state.coveredTo >= requiredThrough,
+    );
+  }
+
+  private start(secid: IndexId, from: string, to: string): Promise<void> {
+    const job = this.refresh(secid, from, to).finally(() => this.pending.delete(secid));
+    this.pending.set(secid, job);
+    return job;
+  }
+
+  private async refresh(secid: IndexId, from: string, to: string): Promise<void> {
+    const at = new Date();
+    const started = Date.now();
+    await this.repository.attempt(secid, at);
+    try {
+      const closes = await this.moex.indexHistory(secid, from, to);
+      await this.repository.save(secid, closes, from, to, at);
+      this.logger.event('info', 'integration.moex.index_history.succeeded', {
+        operation: secid, count: closes.length, durationMs: Date.now() - started,
+      });
+    } catch {
+      this.logger.event('warn', 'integration.moex.index_history.failed', {
+        operation: secid, durationMs: Date.now() - started,
+      });
+    }
+  }
+}

src/modules/investments/operations/application/brokerage-operations-sync.service.ts

@@ -1,11 +1,12 @@
 import { Injectable, NotFoundException } from '@nestjs/common';
 import { randomUUID } from 'node:crypto';
 
-import { StructuredLogger } from '../../../../common/logging/structured-logger.service';
-import { MILLISECONDS_PER_SECOND } from '../../../../common/time';
-import { isTbankErrorCode, TbankErrorCode } from '../../../../integrations/tbank/tbank-error-code';
-import { TbankOperationState } from '../../../../integrations/tbank/tbank-protocol';
-import { TbankAccessService, TbankClient } from '../../../../integrations/tbank/tbank.api';
+import { StructuredLogger } from '#src/common/logging/structured-logger.service';
+import { MILLISECONDS_PER_SECOND } from '#src/common/time';
+import { isTbankErrorCode, TbankErrorCode } from '#src/integrations/tbank/tbank-error-code';
+import { TbankOperationState } from '#src/integrations/tbank/tbank-protocol';
+import { TbankAccessService, TbankClient } from '#src/integrations/tbank/tbank.api';
+
 import {
   type OperationInterval,
   operationIntervals,

src/modules/investments/operations/application/brokerage-operations.service.ts

@@ -1,6 +1,5 @@
-import { BadRequestException, Injectable } from '@nestjs/common';
-import { ConfigService } from '@nestjs/config';
-import { createHash, createHmac, timingSafeEqual } from 'node:crypto';
+import { Injectable } from '@nestjs/common';
+import { createHash } from 'node:crypto';
 
 import {
   InstrumentMetadataService,
@@ -8,54 +7,51 @@ import {
   TbankAccessService,
   type TbankOperationItem,
   tbankSourceTtlMs,
-} from '../../../../integrations/tbank/tbank.api';
+} from '#src/integrations/tbank/tbank.api';
+
 import { dateOnlyBounds, DateOnlyRange } from '../../investment-calendar';
 import { investmentResourceMeta } from '../../investment-resource.mapper';
-import { accountHistory, ledgerRange } from '../../investment-sync-plan';
+import { ledgerRange } from '../../investment-sync-plan';
 import {
   hourlyAttempt,
   TbankSyncRepository,
 } from '../../tbank-sync/tbank-sync.api';
-import { OperationErrorCode } from '../domain/operation-error-code';
+import {
+  coverageAsOf,
+  deriveReadCoverage,
+  historyState,
+  serializeRange,
+} from '../domain/operations-coverage';
 import {
   confirmedOperationRanges,
   operationIntervalsOverlap,
-  operationsSyncPriority,
   planOperationRead,
   uncoveredOperationIntervals,
 } from '../domain/operations-sync-plan';
 import { mapBrokerageOperation } from '../infrastructure/brokerage-operation.mapper';
-import { BrokerageOperationsRepository } from '../infrastructure/brokerage-operations.repository';
+import { BrokerageOperationsReadRepository } from '../infrastructure/brokerage-operations-read.repository';
 import {
   BrokerageOperationsQueryDto,
   DEFAULT_OPERATIONS_PAGE_SIZE,
 } from '../presentation/brokerage-operation.dto';
 import { BrokerageOperationsSyncService } from './brokerage-operations-sync.service';
+import { LocalOperationsCursorCodec } from './local-operations-cursor.codec';
 
 const FIRST_RESULT_OFFSET = 0;
 const MISSING_MEMBERSHIP_REVISION = 0;
 const STALE_FRESHNESS_MS = 0;
-const UNKNOWN_AS_OF_MS = 0;
+const NO_COVERAGE_ROWS = 0;
 const LAST_ROW_INDEX = -1;
 const UNIX_EPOCH_MS = 0;
 
-type LocalOperationsCursor = {
-  accountId: string;
-  at: string;
-  binding: string;
-  id: string;
-  movingEnd?: boolean;
-  to: string;
-};
-
 @Injectable()
 export class BrokerageOperationsService {
   constructor(
     private readonly access: TbankAccessService,
     private readonly metadata: InstrumentMetadataService,
-    private readonly repository: BrokerageOperationsRepository,
+    private readonly repository: BrokerageOperationsReadRepository,
     private readonly sync: BrokerageOperationsSyncService,
-    private readonly config: ConfigService,
+    private readonly cursorCodec: LocalOperationsCursorCodec,
     private readonly hourlySync: TbankSyncRepository,
   ) {}
 
@@ -65,7 +61,7 @@ export class BrokerageOperationsService {
     query: BrokerageOperationsQueryDto,
   ) {
     const connection = await this.access.local(userId, accountId);
-    const cursor = query.cursor ? this.decodeCursor(query.cursor) : undefined;
+    const cursor = query.cursor ? this.cursorCodec.decode(query.cursor) : undefined;
     const selected = connection.accounts.filter(
       (account) => accountId === 'all' || account.accountId === accountId,
     );
@@ -124,64 +120,18 @@ export class BrokerageOperationsService {
     const saved = await this.repository.readPage(readInput);
     const hourly = await this.hourlySync.hourly(userId);
     const accounts = saved?.connection.accounts ?? [];
-    const targets = accounts.flatMap((account) =>
-      from < to
-        ? [
-            {
-              accountId: account.accountId,
-              from,
-              to,
-              instrumentUid: query.instrumentUid,
-            },
-          ]
-        : [],
-    );
-    const plan = planOperationRead(targets, saved?.coverage ?? [], now, {
+    const view = deriveReadCoverage({
+      accounts,
+      connectionMembershipAt: saved?.connection.membershipAt ?? null,
+      coverage: saved?.coverage ?? [],
+      from,
+      instrumentUid: query.instrumentUid,
       movingEnd,
-    });
-    const confirmed = confirmedOperationRanges(plan.intervals, saved?.coverage ?? []);
-    const missing = uncoveredOperationIntervals(
-      plan.intervals,
-      confirmed.map((range) => ({
-        ...range,
-        instrumentUid: query.instrumentUid,
-      })),
-    );
-    const available = Boolean(saved?.connection.membershipAt);
-    const complete = available && !missing.length;
-    const relevant =
-      saved?.work.filter((work) =>
-        work.intervals.some((interval) =>
-          targets.some((target) => operationIntervalsOverlap(interval, target)),
-        ),
-      ) ?? [];
-    const work =
-      relevant.find((work) => work.state === 'running') ??
-      relevant.find((work) => work.state === 'failed') ??
-      null;
-    const sources = (saved?.coverage ?? []).filter((row) =>
-      targets.some(
-        (target) =>
-          operationIntervalsOverlap(row, target) &&
-          (!row.instrumentUid || row.instrumentUid === target.instrumentUid),
-      ),
-    );
-    const lastSuccessfulAt =
-      sources
-        .map((row) => row.fetchedAt)
-        .sort((a, b) => a.valueOf() - b.valueOf())[0] ??
-        (complete ? saved?.connection.membershipAt : null) ??
-        null;
-    const historyTargets = accountHistory(accounts, now);
-    const history = planOperationRead(
-      historyTargets,
-      saved?.coverage ?? [],
       now,
-      { movingEnd: true },
-    );
-    const knownBoundary = accounts.every(
-      (account) => account.openedOn !== null,
-    );
+      to,
+      work: saved?.work ?? [],
+    });
+    const { targets, plan, confirmed, missing, available, complete, lastSuccessfulAt, history, knownBoundary, work } = view;
     const rows = saved?.rows.slice(FIRST_RESULT_OFFSET, limit) ?? [];
     const instruments = await this.metadata.savedMany(
       rows.map((row) => row.payload as TbankOperationItem),
@@ -224,49 +174,17 @@ export class BrokerageOperationsService {
       lastAttempt: hourlyAttempt(hourly, 'operations', accountId === 'all' ? undefined : accountId),
       dependencies: [membershipMeta, ...metadataDependencies],
       coverage: {
-        requested: targets.map(serialize),
-        completeRanges: confirmed.map(serialize),
-        missingRanges: missing.map(serialize),
-        asOf:
-          accounts.length &&
-          accounts.every((account) =>
-            plan.intervals.some(
-              (interval) =>
-                interval.accountId === account.accountId && interval.asOf,
-            ),
-          )
-            ? new Date(
-                Math.min(
-                  ...accounts.map((account) =>
-                    Math.max(
-                      ...plan.intervals
-                        .filter(
-                          (interval) =>
-                            interval.accountId === account.accountId,
-                        )
-                        .map((interval) => interval.asOf?.valueOf() ?? UNKNOWN_AS_OF_MS),
-                    ),
-                  ),
-                ),
-              ).toISOString()
-            : null,
+        requested: targets.map(serializeRange),
+        completeRanges: confirmed.map(serializeRange),
+        missingRanges: missing.map(serializeRange),
+        asOf: coverageAsOf(plan, accounts.map((account) => account.accountId)),
         historyBoundary: knownBoundary ? 'known' : 'unknown',
-        historyState: saved?.work.some(
-          (work) => work.state === 'running' && work.priority > operationsSyncPriority.screen,
-        )
-          ? 'loading'
-          : saved?.work.some(
-            (work) => work.state === 'failed' && work.priority > operationsSyncPriority.screen,
-          )
-            ? 'failed'
-            : knownBoundary &&
-              history.intervals.every(
-                (interval) => interval.availability === 'complete',
-              )
-              ? 'complete'
-              : saved?.coverage.length
-                ? 'partial'
-                : 'missing',
+        historyState: historyState(
+          knownBoundary,
+          history,
+          saved?.work ?? [],
+          saved?.coverage.length ?? NO_COVERAGE_ROWS,
+        ),
       },
     });
     const last = rows.at(LAST_ROW_INDEX);
@@ -301,7 +219,7 @@ export class BrokerageOperationsService {
               hasNext,
               nextCursor:
                 hasNext && last && saved
-                  ? this.encodeCursor({
+                  ? this.cursorCodec.encode({
                       binding: saved.binding,
                       movingEnd,
                       to: to.toISOString(),
@@ -316,55 +234,10 @@ export class BrokerageOperationsService {
     };
   }
 
-  private encodeCursor(value: LocalOperationsCursor): string {
-    const body = Buffer.from(JSON.stringify(value)).toString('base64url');
-    return `${body}.${createHmac('sha256', this.config.getOrThrow<string>('JWT_SECRET')).update(body).digest('base64url')}`;
-  }
-
-  private decodeCursor(value: string): LocalOperationsCursor {
-    try {
-      const [body, signature, extra] = value.split('.');
-      const expected = createHmac(
-        'sha256',
-        this.config.getOrThrow<string>('JWT_SECRET'),
-      )
-        .update(body)
-        .digest();
-      const actual = Buffer.from(signature ?? '', 'base64url');
-      if (
-        extra ||
-        actual.length !== expected.length ||
-        !timingSafeEqual(actual, expected)
-      ) {
-        throw new Error();
-      }
-      const cursor = JSON.parse(
-        Buffer.from(body, 'base64url').toString(),
-      ) as Partial<LocalOperationsCursor>;
-      if (
-        (cursor.movingEnd !== undefined &&
-          typeof cursor.movingEnd !== 'boolean') ||
-          !cursor.binding ||
-          !cursor.accountId ||
-          !cursor.id ||
-          !cursor.at ||
-          !cursor.to ||
-          !Number.isFinite(Date.parse(cursor.at)) ||
-          !Number.isFinite(Date.parse(cursor.to))
-      ) {
-        throw new Error();
-      }
-      return cursor as LocalOperationsCursor;
-    } catch {
-      throw new BadRequestException({ code: OperationErrorCode.InvalidOperationsCursor });
-    }
-  }
-
   async collectRanges(
     userId: string,
     accountId: string,
     ranges: (openedAt: Date | undefined) => DateOnlyRange[],
-    observe = false,
   ) {
     const connection = await this.access.local(userId, accountId);
     const input = {
@@ -378,21 +251,19 @@ export class BrokerageOperationsService {
       periods: ranges,
     };
     let saved = await this.repository.readPage(input);
-    if (!observe) {
-      const targets = (saved?.connection.accounts ?? []).flatMap((account) =>
-        (saved?.periods ?? []).map((period) => ({
-          accountId: account.accountId,
-          ...period,
-        })),
-      );
-      if (targets.length) {
-        await this.sync.readPlan(userId, targets, {
-          movingEnd: saved?.periods?.some((period) => period.movingEnd),
-          revision: connection.revision,
-        });
-      }
-      saved = await this.repository.readPage(input);
+    const targets = (saved?.connection.accounts ?? []).flatMap((account) =>
+      (saved?.periods ?? []).map((period) => ({
+        accountId: account.accountId,
+        ...period,
+      })),
+    );
+    if (targets.length) {
+      await this.sync.readPlan(userId, targets, {
+        movingEnd: saved?.periods?.some((period) => period.movingEnd),
+        revision: connection.revision,
+      });
     }
+    saved = await this.repository.readPage(input);
     const now = new Date();
     const hourly = await this.hourlySync.hourly(userId);
     const membership = investmentResourceMeta({
@@ -466,12 +337,12 @@ export class BrokerageOperationsService {
         lastAttempt: hourlyAttempt(hourly, 'operations', accountId === 'all' ? undefined : accountId),
         dependencies: [membership],
         coverage: {
-          requested: targets.map(serialize),
-          completeRanges: confirmed.map(serialize),
+          requested: targets.map(serializeRange),
+          completeRanges: confirmed.map(serializeRange),
           missingRanges: uncoveredOperationIntervals(
             plan.intervals,
             confirmed,
-          ).map(serialize),
+          ).map(serializeRange),
           asOf:
             complete && targets.length
               ? new Date(
@@ -541,7 +412,3 @@ export class BrokerageOperationsService {
     });
   }
 }
-
-function serialize(range: { accountId: string; from: Date; to: Date }) {
-  return { accountId: range.accountId, from: range.from.toISOString(), to: range.to.toISOString() };
-}

src/modules/investments/operations/application/local-operations-cursor.codec.spec.ts

@@ -0,0 +1,23 @@
+import { decode, encode } from './local-operations-cursor.codec';
+
+const secret = 'secret';
+const cursor = {
+  accountId: 'account',
+  at: '2026-01-01T00:00:00.000Z',
+  binding: 'owner-filter-binding',
+  id: 'operation',
+  movingEnd: false,
+  to: '2026-02-01T00:00:00.000Z',
+};
+
+describe('local operations cursor', () => {
+  it('roundtrips the opaque cursor, including its owner and filter binding', () => {
+    expect(decode(encode(cursor, secret), secret)).toEqual(cursor);
+  });
+
+  it('rejects a tampered cursor and a cursor signed with a different key', () => {
+    const encoded = encode(cursor, secret);
+    expect(() => decode(`${encoded}x`, secret)).toThrow();
+    expect(() => decode(encoded, 'different-secret')).toThrow();
+  });
+});

src/modules/investments/operations/application/local-operations-cursor.codec.ts

@@ -0,0 +1,72 @@
+import { BadRequestException, Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { createHmac, timingSafeEqual } from 'node:crypto';
+
+import { OperationErrorCode } from '../domain/operation-error-code';
+
+export type LocalOperationsCursor = {
+  accountId: string;
+  at: string;
+  binding: string;
+  id: string;
+  movingEnd?: boolean;
+  to: string;
+};
+
+// Opaque cursor: base64url body + HMAC-SHA256 signature over JWT_SECRET.
+// Wire format and validation are part of the HTTP contract and must not change.
+export function encode(value: LocalOperationsCursor, secret: string): string {
+  const body = Buffer.from(JSON.stringify(value)).toString('base64url');
+  return `${body}.${createHmac('sha256', secret).update(body).digest('base64url')}`;
+}
+
+export function decode(value: string, secret: string): LocalOperationsCursor {
+  try {
+    const [body, signature, extra] = value.split('.');
+    const expected = createHmac('sha256', secret).update(body).digest();
+    const actual = Buffer.from(signature ?? '', 'base64url');
+    if (
+      extra ||
+      actual.length !== expected.length ||
+      !timingSafeEqual(actual, expected)
+    ) {
+      throw new Error();
+    }
+    const cursor = JSON.parse(
+      Buffer.from(body, 'base64url').toString(),
+    ) as Partial<LocalOperationsCursor>;
+    if (
+      (cursor.movingEnd !== undefined &&
+        typeof cursor.movingEnd !== 'boolean') ||
+        !cursor.binding ||
+        !cursor.accountId ||
+        !cursor.id ||
+        !cursor.at ||
+        !cursor.to ||
+        !Number.isFinite(Date.parse(cursor.at)) ||
+        !Number.isFinite(Date.parse(cursor.to))
+    ) {
+      throw new Error();
+    }
+    return cursor as LocalOperationsCursor;
+  } catch {
+    throw new BadRequestException({ code: OperationErrorCode.InvalidOperationsCursor });
+  }
+}
+
+@Injectable()
+export class LocalOperationsCursorCodec {
+  constructor(private readonly config: ConfigService) {}
+
+  encode(value: LocalOperationsCursor): string {
+    return encode(value, this.secret());
+  }
+
+  decode(value: string): LocalOperationsCursor {
+    return decode(value, this.secret());
+  }
+
+  private secret(): string {
+    return this.config.getOrThrow<string>('JWT_SECRET');
+  }
+}

src/modules/investments/operations/domain/operations-coverage.ts

@@ -0,0 +1,165 @@
+import { accountHistory } from '../../investment-sync-plan';
+import { confirmedOperationRanges, type OperationCoverage,
+  type OperationInterval,
+  operationIntervalsOverlap,
+  operationsSyncPriority,
+  planOperationRead,
+  uncoveredOperationIntervals } from './operations-sync-plan';
+
+const UNKNOWN_AS_OF_MS = 0;
+
+type WorkState = {
+  errorCode: null | string;
+  id: string;
+  intervals: OperationInterval[];
+  priority: number;
+  state: string;
+};
+
+type CoverageAccount = { accountId: string; openedOn: null | string };
+
+// Pure derivation of the ledger read view: what was requested, what is
+// confirmed, what is missing, and which sync work is currently relevant.
+export function deriveReadCoverage(input: {
+  accounts: CoverageAccount[];
+  connectionMembershipAt: Date | null;
+  coverage: OperationCoverage[];
+  from: Date;
+  instrumentUid?: string;
+  movingEnd: boolean;
+  now: Date;
+  to: Date;
+  work: WorkState[];
+}) {
+  const targets = input.accounts.flatMap((account) =>
+    input.from < input.to
+      ? [
+          {
+            accountId: account.accountId,
+            from: input.from,
+            to: input.to,
+            instrumentUid: input.instrumentUid,
+          },
+        ]
+      : [],
+  );
+  const plan = planOperationRead(targets, input.coverage, input.now, {
+    movingEnd: input.movingEnd,
+  });
+  const confirmed = confirmedOperationRanges(plan.intervals, input.coverage);
+  const missing = uncoveredOperationIntervals(
+    plan.intervals,
+    confirmed.map((range) => ({
+      ...range,
+      instrumentUid: input.instrumentUid,
+    })),
+  );
+  const available = Boolean(input.connectionMembershipAt);
+  const complete = available && !missing.length;
+  const relevant = input.work.filter((work) =>
+    work.intervals.some((interval) =>
+      targets.some((target) => operationIntervalsOverlap(interval, target)),
+    ),
+  );
+  const work =
+    relevant.find((work) => work.state === 'running') ??
+    relevant.find((work) => work.state === 'failed') ??
+    null;
+  const sources = input.coverage.filter((row) =>
+    targets.some(
+      (target) =>
+        operationIntervalsOverlap(row, target) &&
+        (!row.instrumentUid || row.instrumentUid === target.instrumentUid),
+    ),
+  );
+  const lastSuccessfulAt =
+    sources
+      .map((row) => row.fetchedAt)
+      .sort((a, b) => a.valueOf() - b.valueOf())[0] ??
+      (complete ? input.connectionMembershipAt : null) ??
+      null;
+  const history = planOperationRead(
+    accountHistory(input.accounts, input.now),
+    input.coverage,
+    input.now,
+    { movingEnd: true },
+  );
+  const knownBoundary = input.accounts.every(
+    (account) => account.openedOn !== null,
+  );
+  return {
+    targets,
+    plan,
+    confirmed,
+    missing,
+    available,
+    complete,
+    work,
+    lastSuccessfulAt,
+    history,
+    knownBoundary,
+  };
+}
+
+export function coverageAsOf(
+  plan: ReturnType<typeof planOperationRead>,
+  accountIds: string[],
+): null | string {
+  if (
+    accountIds.length &&
+    accountIds.every((accountId) =>
+      plan.intervals.some(
+        (interval) =>
+          interval.accountId === accountId && interval.asOf,
+      ),
+    )
+  ) {
+    return new Date(
+      Math.min(
+        ...accountIds.map((accountId) =>
+          Math.max(
+            ...plan.intervals
+              .filter((interval) => interval.accountId === accountId)
+              .map((interval) => interval.asOf?.valueOf() ?? UNKNOWN_AS_OF_MS),
+          ),
+        ),
+      ),
+    ).toISOString();
+  }
+  return null;
+}
+
+export function historyState(
+  knownBoundary: boolean,
+  history: ReturnType<typeof planOperationRead>,
+  work: WorkState[],
+  coverageCount: number,
+): 'complete' | 'failed' | 'loading' | 'missing' | 'partial' {
+  if (
+    work.some(
+      (work) => work.state === 'running' && work.priority > operationsSyncPriority.screen,
+    )
+  ) {
+    return 'loading';
+  }
+  if (
+    work.some(
+      (work) => work.state === 'failed' && work.priority > operationsSyncPriority.screen,
+    )
+  ) {
+    return 'failed';
+  }
+  if (
+    knownBoundary &&
+    history.intervals.every(
+      (interval) => interval.availability === 'complete',
+    )
+  ) {
+    return 'complete';
+  }
+  return coverageCount ? 'partial' : 'missing';
+}
+
+export function serializeRange(range: { accountId: string; from: Date; to: Date }) {
+  return { accountId: range.accountId, from: range.from.toISOString(), to: range.to.toISOString() };
+}

src/modules/investments/operations/domain/operations-interval-codec.ts

@@ -0,0 +1,67 @@
+import { type OperationInterval,
+  operationIntervalsOverlap,
+  operationsSyncPriority } from './operations-sync-plan';
+
+export type OperationsIntent = {
+  atomic: boolean;
+  atomicIntervals?: string[];
+  intervals: string[];
+  screenIntervals?: string[];
+};
+
+export function intervalKey(interval: OperationInterval): string {
+  // eslint-disable-next-line sonarjs/no-inverted-boolean-check -- Negation also rejects Invalid Date; >= would silently accept NaN.
+  if (!(interval.from < interval.to)) {
+    throw new Error('Invalid operations interval');
+  }
+  return JSON.stringify([
+    interval.accountId,
+    interval.from.toISOString(),
+    interval.to.toISOString(),
+    interval.instrumentUid ?? '',
+  ]);
+}
+
+export function decodeInterval(key: string): OperationInterval {
+  const [accountId, from, to, instrumentUid] = JSON.parse(key) as string[];
+  return {
+    accountId,
+    from: new Date(from),
+    to: new Date(to),
+    ...(instrumentUid ? { instrumentUid } : {}),
+  };
+}
+
+export function extendRunningIntent(input: {
+  additions: OperationInterval[];
+  intervals: OperationInterval[];
+  pending: OperationInterval[];
+  previous: OperationsIntent | undefined;
+  previousPriority: number;
+  priority: number;
+  publicationAtomic: boolean;
+}): OperationsIntent {
+  const { previous, pending, additions, intervals, priority, previousPriority, publicationAtomic } = input;
+  const overlapsRequested = (item: OperationInterval) =>
+    intervals.some((target) => operationIntervalsOverlap(item, target));
+  const retainedScreen = previous?.screenIntervals ??
+    (previousPriority === operationsSyncPriority.screen ? (previous?.intervals ?? []) : []);
+  const addedScreen = priority === operationsSyncPriority.screen
+    ? [...pending, ...additions].filter(overlapsRequested).map(intervalKey)
+    : [];
+  const ordered = priority < previousPriority
+    ? [
+        ...pending.filter(overlapsRequested),
+        ...additions,
+        ...pending.filter((item) => !overlapsRequested(item)),
+      ]
+    : [...pending, ...additions];
+  return {
+    atomic: previous?.atomic ?? publicationAtomic,
+    atomicIntervals: previous?.atomic
+      ? [...new Set([...(previous.atomicIntervals ?? previous.intervals), ...additions.map(intervalKey)])]
+      : [],
+    screenIntervals: [...new Set([...retainedScreen, ...addedScreen])],
+    intervals: ordered.map(intervalKey),
+  };
+}

src/modules/investments/operations/infrastructure/brokerage-operation.mapper.spec.ts

@@ -56,6 +56,24 @@ describe('mapBrokerageOperation', () => {
       payment: null,
     });
   });
+
+  it('filters non-RUB money out of every money field at ingest', () => {
+    expect(
+      mapBrokerageOperation({
+        id: 'usd',
+        date: { seconds: '1' },
+        type: 'OPERATION_TYPE_DIVIDEND',
+        payment: { currency: 'usd', units: '21' },
+        price: { currency: 'USD', units: '10' },
+        commission: { currency: 'EUR', units: '1' },
+      }),
+    ).toMatchObject({
+      id: 'usd',
+      payment: null,
+      price: null,
+      commission: null,
+    });
+  });
 });
 
 describe('executed trade quantity', () => {

src/modules/investments/operations/infrastructure/brokerage-operation.mapper.ts

@@ -1,8 +1,8 @@
-import { formatDecimal } from '../../../../common/decimal';
-import { MILLISECONDS_PER_SECOND } from '../../../../common/time';
-import { decimal } from '../../../../integrations/tbank/decimal';
-import { TbankOperationType } from '../../../../integrations/tbank/tbank-protocol';
-import { TbankMoney, TbankOperationItem } from '../../../../integrations/tbank/tbank.api';
+import { MILLISECONDS_PER_SECOND } from '#src/common/time';
+import { rubMoney } from '#src/integrations/tbank/decimal';
+import { TbankOperationType } from '#src/integrations/tbank/tbank-protocol';
+import { TbankOperationItem } from '#src/integrations/tbank/tbank.api';
+
 import { type OperationCategory } from '../../operation-category';
 import { BrokerageOperationDto } from '../presentation/brokerage-operation.dto';
 
@@ -55,7 +55,7 @@ export function mapBrokerageOperation(
     ticker: text(operation.ticker),
     instrumentType: text(operation.instrumentType),
     logoName: null,
-    payment: money(operation.payment),
+    payment: rubMoney(operation.payment),
     quantity:
       (operationCategory(operation.type) === 'trade'
         ? operation.quantityDone
@@ -66,9 +66,9 @@ export function mapBrokerageOperation(
               ? operation.quantityDone
               : operation.quantity,
           ),
-    price: money(operation.price),
-    accruedInterest: money(operation.accruedInt),
-    commission: money(operation.commission),
+    price: rubMoney(operation.price),
+    accruedInterest: rubMoney(operation.accruedInt),
+    commission: rubMoney(operation.commission),
   };
 }
 
@@ -76,13 +76,6 @@ function text(value: string | undefined): null | string {
   return value?.trim() || null;
 }
 
-function money(value: TbankMoney | undefined) {
-  const currency = value?.currency?.trim().toUpperCase();
-  return currency && value
-    ? { currency, value: formatDecimal(decimal(value)) }
-    : null;
-}
-
 export function operationTimestamp(
   value: undefined | { nanos?: number; seconds?: number | string },
 ) {

src/modules/investments/operations/infrastructure/brokerage-operations-read.repository.ts

@@ -0,0 +1,193 @@
+import {
+  BadRequestException,
+  Injectable,
+  NotFoundException,
+} from '@nestjs/common';
+import { createHash } from 'node:crypto';
+
+import { PrismaService } from '#src/prisma/prisma.service';
+
+import {
+  dateOnlyBounds,
+  DateOnlyRange,
+  moscowDate,
+} from '../../investment-calendar';
+import { OperationErrorCode } from '../domain/operation-error-code';
+import { decodeInterval } from '../domain/operations-interval-codec';
+
+const CURSOR_LOOKAHEAD_ROWS = 1;
+
+@Injectable()
+export class BrokerageOperationsReadRepository {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async readPage(input: {
+    accountId: string;
+    categories: string[];
+    cursor?: { accountId: string; at: string; binding: string; id: string };
+    filterKey: string;
+    from: Date;
+    instrumentUid?: string;
+    limit?: number;
+    periods?: (openedAt: Date | undefined) => DateOnlyRange[];
+    revision: string;
+    to: Date;
+    userId: string;
+  }) {
+    return this.prisma.$transaction(async (tx) => {
+      const connection = await tx.tbankConnection.findUnique({
+        where: {
+          userId_revision: { userId: input.userId, revision: input.revision },
+          invalidToken: false,
+        },
+        select: {
+          membershipAt: true,
+          membershipRevision: true,
+          accounts: {
+            where:
+              input.accountId === 'all' ? {} : { accountId: input.accountId },
+            orderBy: { accountId: 'asc' },
+            select: {
+              accountId: true,
+              name: true,
+              openedOn: true,
+              operationsRevision: true,
+            },
+          },
+        },
+      });
+      if (!connection) return null;
+      if (
+        connection.membershipAt &&
+        input.accountId !== 'all' &&
+        !connection.accounts.length
+      ) {
+        throw new NotFoundException();
+      }
+      const accounts = connection.accounts;
+      // eslint-disable-next-line sonarjs/no-alphabetical-sort -- Code-unit ordering is intentional for canonical keys and ISO dates; locale collation would change persisted bindings.
+      const oldest = accounts.map((account) => account.openedOn).sort()[0];
+      const openedAt =
+        oldest && accounts.every((account) => account.openedOn)
+          ? new Date(`${oldest}T00:00:00+03:00`)
+          : undefined;
+      const periods = input.periods?.(openedAt).map((period) => {
+        const now = new Date();
+        const bounds = dateOnlyBounds(period, now);
+        return {
+          ...bounds,
+          key: `${period.from}/${period.to}`,
+          movingEnd: period.to >= moscowDate(now),
+        };
+      });
+      const binding = createHash('sha256')
+        .update(
+          JSON.stringify([
+            input.userId,
+            input.revision,
+            input.accountId === 'all' ? connection.membershipRevision : null,
+            accounts.map((account) => [
+              account.accountId,
+              account.operationsRevision,
+            ]),
+            input.filterKey,
+          ]),
+        )
+        .digest('base64url');
+      if (input.cursor && input.cursor.binding !== binding) {
+        throw new BadRequestException({ code: OperationErrorCode.InvalidOperationsCursor });
+      }
+      const scope = {
+        userId: input.userId,
+        revision: input.revision,
+        accountId: { in: accounts.map((account) => account.accountId) },
+      };
+      const coverage = await tx.tbankOperationCoverage.findMany({
+        where: scope,
+      });
+      const work = await tx.tbankSyncWork.findMany({
+        where: {
+          userId: input.userId,
+          revision: input.revision,
+          scopeKey: { startsWith: 'operations:' },
+          state: { in: ['running', 'failed'] },
+        },
+        select: {
+          id: true,
+          state: true,
+          errorCode: true,
+          intent: true,
+          priority: true,
+        },
+      });
+      const membershipWork = await tx.tbankSyncWork.findUnique({
+        where: {
+          userId_revision_scopeKey: {
+            userId: input.userId,
+            revision: input.revision,
+            scopeKey: 'membership',
+          },
+        },
+        select: { id: true, state: true, errorCode: true },
+      });
+      const after = input.cursor;
+      const rows = await tx.tbankOperation.findMany({
+        where: {
+          ...scope,
+          ...(periods
+            ? {
+                OR: periods.map((period) => ({
+                  occurredAt: { gte: period.from, lt: period.to },
+                })),
+              }
+            : { occurredAt: { gte: input.from, lt: input.to } }),
+          ...(input.instrumentUid
+            ? { instrumentUid: input.instrumentUid }
+            : {}),
+          ...(input.categories.length
+            ? { category: { in: input.categories } }
+            : {}),
+          ...(after
+            ? {
+                OR: [
+                  { occurredAt: { lt: new Date(after.at) } },
+                  {
+                    occurredAt: new Date(after.at),
+                    accountId: { gt: after.accountId },
+                  },
+                  {
+                    occurredAt: new Date(after.at),
+                    accountId: after.accountId,
+                    brokerOperationId: { gt: after.id },
+                  },
+                ],
+              }
+            : {}),
+        },
+        orderBy: [
+          { occurredAt: 'desc' },
+          { accountId: 'asc' },
+          { brokerOperationId: 'asc' },
+        ],
+        ...(input.limit === undefined ? {} : { take: input.limit + CURSOR_LOOKAHEAD_ROWS }),
+      });
+      return {
+        connection,
+        periods,
+        membershipWork,
+        binding,
+        rows,
+        coverage: coverage.map(({ instrumentPredicate, ...row }) => ({
+          ...row,
+          instrumentUid: instrumentPredicate || undefined,
+        })),
+        work: work.map(({ intent, ...row }) => ({
+          ...row,
+          intervals: (intent as { intervals: string[] }).intervals.map(
+            decodeInterval,
+          ),
+        })),
+      };
+    });
+  }
+}

src/modules/investments/operations/infrastructure/brokerage-operations.repository.ts

@@ -1,26 +1,25 @@
-import {
-  BadRequestException,
-  Injectable,
-  NotFoundException,
-} from '@nestjs/common';
+import { Injectable, NotFoundException } from '@nestjs/common';
 import { createHash, randomUUID } from 'node:crypto';
 import { isDeepStrictEqual } from 'node:util';
 
-import type { Prisma } from '../../../../../generated/prisma/client';
-import type {
-  TbankOperationItem,
-  TbankOperationsByCursorResponse,
-} from '../../../../integrations/tbank/tbank.api';
+import type { Prisma } from '#generated/prisma/client';
 
-import { TbankErrorCode } from '../../../../integrations/tbank/tbank-error-code';
-import { isTbankProtocolValue, TbankOperationState } from '../../../../integrations/tbank/tbank-protocol';
-import { PrismaService } from '../../../../prisma/prisma.service';
+import { TbankErrorCode } from '#src/integrations/tbank/tbank-error-code';
+import { isTbankProtocolValue, TbankOperationState } from '#src/integrations/tbank/tbank-protocol';
+import { claimSyncWork, lockConnectionGeneration } from '#src/integrations/tbank/tbank-sync-claim';
 import {
-  dateOnlyBounds,
-  DateOnlyRange,
-  moscowDate,
-} from '../../investment-calendar';
-import { OperationErrorCode } from '../domain/operation-error-code';
+  isJoinableRunningAttempt,
+  type TbankOperationItem, type TbankOperationsByCursorResponse,
+} from '#src/integrations/tbank/tbank.api';
+import { PrismaService } from '#src/prisma/prisma.service';
+import { toJson } from '#src/prisma/to-json';
+
+import {
+  decodeInterval,
+  extendRunningIntent,
+  intervalKey,
+  type OperationsIntent,
+} from '../domain/operations-interval-codec';
 import {
   type OperationInterval,
   operationIntervals,
@@ -33,13 +32,13 @@ import {
   operationTimestamp,
 } from './brokerage-operation.mapper';
 
-const CURSOR_LOOKAHEAD_ROWS = 1;
 const EMPTY_INTERVAL_COUNT = 0;
 const SINGLE_WORK_GROUP = 1;
 const INITIAL_PAGE_COUNT = 0;
 const PAGE_INCREMENT = 1;
 const EXPECTED_UPDATED_WORK_ITEMS = 1;
 
+export type { OperationsIntent } from '../domain/operations-interval-codec';
 export type { OperationInterval } from '../domain/operations-sync-plan';
 
 export type OperationAttempt = {
@@ -48,12 +47,6 @@ export type OperationAttempt = {
   revision: string;
   userId: string;
 };
-type OperationsIntent = {
-  atomic: boolean;
-  atomicIntervals?: string[];
-  intervals: string[];
-  screenIntervals?: string[];
-};
 type PageProgress = {
   complete: boolean;
   cursor: string;
@@ -66,176 +59,6 @@ const progressItem = '';
 export class BrokerageOperationsRepository {
   constructor(private readonly prisma: PrismaService) {}
 
-  async readPage(input: {
-    accountId: string;
-    categories: string[];
-    cursor?: { accountId: string; at: string; binding: string; id: string };
-    filterKey: string;
-    from: Date;
-    instrumentUid?: string;
-    limit?: number;
-    periods?: (openedAt: Date | undefined) => DateOnlyRange[];
-    revision: string;
-    to: Date;
-    userId: string;
-  }) {
-    return this.prisma.$transaction(async (tx) => {
-      const connection = await tx.tbankConnection.findUnique({
-        where: {
-          userId_revision: { userId: input.userId, revision: input.revision },
-          invalidToken: false,
-        },
-        select: {
-          membershipAt: true,
-          membershipRevision: true,
-          accounts: {
-            where:
-              input.accountId === 'all' ? {} : { accountId: input.accountId },
-            orderBy: { accountId: 'asc' },
-            select: {
-              accountId: true,
-              name: true,
-              openedOn: true,
-              operationsRevision: true,
-            },
-          },
-        },
-      });
-      if (!connection) return null;
-      if (
-        connection.membershipAt &&
-        input.accountId !== 'all' &&
-        !connection.accounts.length
-      ) {
-        throw new NotFoundException();
-      }
-      const accounts = connection.accounts;
-      // eslint-disable-next-line sonarjs/no-alphabetical-sort -- Code-unit ordering is intentional for canonical keys and ISO dates; locale collation would change persisted bindings.
-      const oldest = accounts.map((account) => account.openedOn).sort()[0];
-      const openedAt =
-        oldest && accounts.every((account) => account.openedOn)
-          ? new Date(`${oldest}T00:00:00+03:00`)
-          : undefined;
-      const periods = input.periods?.(openedAt).map((period) => {
-        const now = new Date();
-        const bounds = dateOnlyBounds(period, now);
-        return {
-          ...bounds,
-          key: `${period.from}/${period.to}`,
-          movingEnd: period.to >= moscowDate(now),
-        };
-      });
-      const binding = createHash('sha256')
-        .update(
-          JSON.stringify([
-            input.userId,
-            input.revision,
-            input.accountId === 'all' ? connection.membershipRevision : null,
-            accounts.map((account) => [
-              account.accountId,
-              account.operationsRevision,
-            ]),
-            input.filterKey,
-          ]),
-        )
-        .digest('base64url');
-      if (input.cursor && input.cursor.binding !== binding) {
-        throw new BadRequestException({ code: OperationErrorCode.InvalidOperationsCursor });
-      }
-      const scope = {
-        userId: input.userId,
-        revision: input.revision,
-        accountId: { in: accounts.map((account) => account.accountId) },
-      };
-      const coverage = await tx.tbankOperationCoverage.findMany({
-        where: scope,
-      });
-      const work = await tx.tbankSyncWork.findMany({
-        where: {
-          userId: input.userId,
-          revision: input.revision,
-          scopeKey: { startsWith: 'operations:' },
-          state: { in: ['running', 'failed'] },
-        },
-        select: {
-          id: true,
-          state: true,
-          errorCode: true,
-          intent: true,
-          priority: true,
-        },
-      });
-      const membershipWork = await tx.tbankSyncWork.findUnique({
-        where: {
-          userId_revision_scopeKey: {
-            userId: input.userId,
-            revision: input.revision,
-            scopeKey: 'membership',
-          },
-        },
-        select: { id: true, state: true, errorCode: true },
-      });
-      const after = input.cursor;
-      const rows = await tx.tbankOperation.findMany({
-        where: {
-          ...scope,
-          ...(periods
-            ? {
-                OR: periods.map((period) => ({
-                  occurredAt: { gte: period.from, lt: period.to },
-                })),
-              }
-            : { occurredAt: { gte: input.from, lt: input.to } }),
-          ...(input.instrumentUid
-            ? { instrumentUid: input.instrumentUid }
-            : {}),
-          ...(input.categories.length
-            ? { category: { in: input.categories } }
-            : {}),
-          ...(after
-            ? {
-                OR: [
-                  { occurredAt: { lt: new Date(after.at) } },
-                  {
-                    occurredAt: new Date(after.at),
-                    accountId: { gt: after.accountId },
-                  },
-                  {
-                    occurredAt: new Date(after.at),
-                    accountId: after.accountId,
-                    brokerOperationId: { gt: after.id },
-                  },
-                ],
-              }
-            : {}),
-        },
-        orderBy: [
-          { occurredAt: 'desc' },
-          { accountId: 'asc' },
-          { brokerOperationId: 'asc' },
-        ],
-        ...(input.limit === undefined ? {} : { take: input.limit + CURSOR_LOOKAHEAD_ROWS }),
-      });
-      return {
-        connection,
-        periods,
-        membershipWork,
-        binding,
-        rows,
-        coverage: coverage.map(({ instrumentPredicate, ...row }) => ({
-          ...row,
-          instrumentUid: instrumentPredicate || undefined,
-        })),
-        work: work.map(({ intent, ...row }) => ({
-          ...row,
-          intervals: (intent as { intervals: string[] }).intervals.map(
-            decodeInterval,
-          ),
-        })),
-      };
-    });
-  }
-
   async coverage(userId: string, revision: string, accountIds: string[]) {
     const rows = await this.prisma.tbankOperationCoverage.findMany({
       where: {
@@ -268,16 +91,10 @@ export class BrokerageOperationsRepository {
         .update(JSON.stringify([...new Set(intervals.map(intervalKey))].sort()))
         .digest('hex');
     return this.prisma.$transaction(async (tx) => {
-      const locked = await tx.tbankConnection.updateMany({
-        where: {
-          userId,
-          revision,
-          invalidToken: false,
-          membershipAt: { not: null },
-        },
-        data: { membershipRevision: { increment: 0 } },
+      const locked = await lockConnectionGeneration(tx, { userId, revision }, {
+        membershipAt: { not: null },
       });
-      if (!locked.count) return null;
+      if (!locked) return null;
       const accounts = await tx.tbankAccount.findMany({
         where: { userId, revision },
         select: { accountId: true, openedOn: true },
@@ -379,9 +196,7 @@ export class BrokerageOperationsRepository {
         publicationAtomic && previousIntent && !previousIntent.atomic;
       if (
         touching.length <= SINGLE_WORK_GROUP &&
-        previous?.state === 'running' &&
-        previous.processRunId === processRunId &&
-        runningAttempts.has(previous.attemptId) &&
+        isJoinableRunningAttempt(previous, processRunId, runningAttempts) &&
         !upgradeGroup
       ) {
         const pending = previousIntent?.intervals.map(decodeInterval) ?? [];
@@ -656,9 +471,7 @@ export class BrokerageOperationsRepository {
         ) {
           continue;
         }
-        const payload = JSON.parse(
-          JSON.stringify({ ...operation, cursor: undefined }),
-        ) as Prisma.InputJsonObject;
+        const payload = toJson({ ...operation, cursor: undefined });
         // Provider pagination position is not part of a financial row.
         const identity = { ...stage, itemKey: operation.id };
         const previous = await tx.tbankSyncStage.findUnique({
@@ -882,74 +695,10 @@ export class BrokerageOperationsRepository {
   }
 }
 
-function extendRunningIntent(input: {
-  additions: OperationInterval[];
-  intervals: OperationInterval[];
-  pending: OperationInterval[];
-  previous: OperationsIntent | undefined;
-  previousPriority: number;
-  priority: number;
-  publicationAtomic: boolean;
-}): OperationsIntent {
-  const { previous, pending, additions, intervals, priority, previousPriority, publicationAtomic } = input;
-  const overlapsRequested = (item: OperationInterval) =>
-    intervals.some((target) => operationIntervalsOverlap(item, target));
-  const retainedScreen = previous?.screenIntervals ??
-    (previousPriority === operationsSyncPriority.screen ? (previous?.intervals ?? []) : []);
-  const addedScreen = priority === operationsSyncPriority.screen
-    ? [...pending, ...additions].filter(overlapsRequested).map(intervalKey)
-    : [];
-  const ordered = priority < previousPriority
-    ? [
-        ...pending.filter(overlapsRequested),
-        ...additions,
-        ...pending.filter((item) => !overlapsRequested(item)),
-      ]
-    : [...pending, ...additions];
-  return {
-    atomic: previous?.atomic ?? publicationAtomic,
-    atomicIntervals: previous?.atomic
-      ? [...new Set([...(previous.atomicIntervals ?? previous.intervals), ...additions.map(intervalKey)])]
-      : [],
-    screenIntervals: [...new Set([...retainedScreen, ...addedScreen])],
-    intervals: ordered.map(intervalKey),
-  };
-}
-
-function intervalKey(interval: OperationInterval): string {
-  // eslint-disable-next-line sonarjs/no-inverted-boolean-check -- Negation also rejects Invalid Date; >= would silently accept NaN.
-  if (!(interval.from < interval.to)) {
-    throw new Error('Invalid operations interval');
-  }
-  return JSON.stringify([
-    interval.accountId,
-    interval.from.toISOString(),
-    interval.to.toISOString(),
-    interval.instrumentUid ?? '',
-  ]);
-}
-
 async function claim(
   tx: Prisma.TransactionClient,
   attempt: OperationAttempt,
 ): Promise<boolean> {
-  const result = await tx.tbankSyncWork.updateMany({
-    where: {
-      ...attempt,
-      state: 'running',
-      connection: { invalidToken: false },
-    },
-    data: { updatedAt: new Date() },
-  });
-  return result.count === EXPECTED_UPDATED_WORK_ITEMS;
-}
-
-function decodeInterval(key: string): OperationInterval {
-  const [accountId, from, to, instrumentUid] = JSON.parse(key) as string[];
-  return {
-    accountId,
-    from: new Date(from),
-    to: new Date(to),
-    ...(instrumentUid ? { instrumentUid } : {}),
-  };
+  const count = await claimSyncWork(tx, attempt, { updatedAt: new Date() });
+  return count === EXPECTED_UPDATED_WORK_ITEMS;
 }

src/modules/investments/operations/operations.module.ts

@@ -1,10 +1,13 @@
 import { Module } from '@nestjs/common';
 
-import { TbankModule } from '../../../integrations/tbank/tbank.module';
+import { TbankModule } from '#src/integrations/tbank/tbank.module';
+
 import { AuthModule } from '../../auth/auth.module';
 import { TbankSyncRepositoryModule } from '../tbank-sync/tbank-sync-repository.module';
 import { BrokerageOperationsSyncService } from './application/brokerage-operations-sync.service';
 import { BrokerageOperationsService } from './application/brokerage-operations.service';
+import { LocalOperationsCursorCodec } from './application/local-operations-cursor.codec';
+import { BrokerageOperationsReadRepository } from './infrastructure/brokerage-operations-read.repository';
 import { BrokerageOperationsRepository } from './infrastructure/brokerage-operations.repository';
 import { BrokerageOperationsController } from './presentation/brokerage-operations.controller';
 
@@ -14,6 +17,8 @@ import { BrokerageOperationsController } from './presentation/brokerage-operatio
   providers: [
     BrokerageOperationsService,
     BrokerageOperationsRepository,
+    BrokerageOperationsReadRepository,
+    LocalOperationsCursorCodec,
     BrokerageOperationsSyncService,
   ],
   exports: [BrokerageOperationsService, BrokerageOperationsSyncService],

src/modules/investments/operations/presentation/brokerage-operation.dto.ts

@@ -13,7 +13,8 @@ import {
   Min,
 } from 'class-validator';
 
-import { MoneyDto } from '../../../../common/money.dto';
+import { MoneyDto } from '#src/common/money.dto';
+
 import { AccountReferenceDto } from '../../account-reference.dto';
 import { InvestmentResourceMetaDto } from '../../investment-resource.dto';
 import { operationCategories, type OperationCategory } from '../../operation-category';