docs: simplify conventions layout

AGENTS.md

@@ -2,20 +2,19 @@
 
 Общие инструкции — [workspace AGENTS](../AGENTS.md). Объединяй triggers задачи,
 путей и обнаруженных boundaries; читай только нужные темы до решения.
-[Sources](.ai/SOURCES.md) выбирает факты/spec/ADR по возникшему вопросу.
+Системные факты/spec/ADR выбирай в разделе [Источники](#источники) по вопросу.
 
 | Решение / сигнал | Читать |
 | --- | --- |
-| Первое знакомство, data flow, общая архитектура | [Mental model](.ai/architecture.md) |
-| Module/layer/public API/DI/suffix, owner, перенос responsibility | [Modules/application](.ai/conventions/backend-architecture.md) |
-| TS vocabulary, domain literals, magic values | [Types/values](.ai/conventions/backend-architecture.md#domain-literals-and-magic-values) |
-| Controller/DTO/validation, route/status/response, OpenAPI | [HTTP API](.ai/conventions/backend-http-api.md) |
-| Application/domain/HTTP error, exception, code | [Errors](.ai/conventions/backend-error-handling.md) |
-| Repository/Prisma/query, transaction, migration, atomic write | [Data](.ai/conventions/backend-data.md) |
-| Tests или behavior с regression risk | [Testing](.ai/conventions/backend-testing.md) |
+| Устройство/data flow, module/layer/public API/DI/suffix, owner | [Architecture](.ai/architecture.md) |
+| TS vocabulary, domain literals, magic values | [Types/values](.ai/architecture.md#domain-literals-and-magic-values) |
+| Controller/DTO/validation, route/status/response, OpenAPI | [HTTP API](.ai/conventions/http-api.md) |
+| Application/domain/HTTP error, exception, code | [Errors](.ai/conventions/error-handling.md) |
+| Repository/Prisma/query, transaction, migration, atomic write | [Data](.ai/conventions/data.md) |
+| Tests или behavior с regression risk | [Testing](.ai/conventions/testing.md) |
 | JWT/cookie/session/guard/access, encryption, secrets | [Security](.ai/conventions/security-auth.md) |
-| External client/gateway/SDK/proto, retry/rate limit/cache | [Integrations](.ai/conventions/backend-integrations.md) |
-| Logging/context/levels, sensitive logs | [Observability](.ai/conventions/backend-observability.md); sensitive data также Security |
+| External client/gateway/SDK/proto, retry/rate limit/cache | [Integrations](.ai/conventions/integrations.md) |
+| Logging/context/levels, sensitive logs | [Observability](.ai/conventions/observability.md); sensitive data также Security |
 | Изменение публичного wire contract / Swagger metadata | HTTP API + [HTTP contract source](../docs/architecture/http-api.md#источник-контракта) |
 | Helper/dependency/новый pattern, refactor/scope | [Code health](../.ai/conventions/code-health.md), для пакета — [Dependencies](../.ai/conventions/dependencies.md) |
 | Выбор gate, tooling, завершение | [Guardrails](../.ai/conventions/guardrails.md) |
@@ -25,3 +24,19 @@
 Повтори routing по итоговому diff, включая новые файлы. Migration backlog
 читается только при соответствующем finding через
 [plan](../.ai/migrations/conventions-v1/plan.md).
+
+## Источники
+
+Открывай только источник по возникшему вопросу. Code показывает реализацию,
+docs — текущую систему, ADR — rationale, specs — requirements. Старый пример
+не отменяет контракт; conflicting security/data facts выясняй до решения.
+
+| Вопрос | Источник |
+| --- | --- |
+| HTTP errors/DTO/wire shape | [HTTP API](../docs/architecture/http-api.md); editable OpenAPI генерирует Nest |
+| Auth/session, account access, secrets | [Authentication](../docs/domains/authentication/overview.md), [T-Bank](../docs/integrations/tbank.md) |
+| Prisma/data ownership, хранение и доступ | [Containers](../docs/architecture/containers.md#хранимые-данные-и-границы-доступа) |
+| T-Bank/cache/logging | [T-Bank](../docs/integrations/tbank.md), [Freshness](../docs/architecture/cross-cutting/data-freshness.md), [Observability](../docs/architecture/http-api.md#наблюдаемость) |
+| Money, account/position/income/cache meanings | [Глоссарий](../docs/glossary.md) |
+| Поведение области / требования | [Области docs](../docs/README.md#предметные-области), [Specs index](../specs/AI_INDEX.md) |
+| Versions/scripts/check scope | Manifest/lockfile, ESLint/TypeScript/Jest/Prisma configs |