refactor!: simplify runtime coordination #7

Keep financial ownership, atomic publication and refresh CAS.
Failed refresh leaves cookies untouched; logout still clears them.

Remove full-history candle prefetch and special metadata retries.
Use native Pino request context instead of parallel middleware.

BREAKING CHANGE: remove investment stateVersion, queued sync state,
and tbank-sync status progress/resources. Consumers must observe
resources through sync=observe with the updated frontend contract.

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

@@ -49,7 +49,7 @@ export class BankCardsRepository {
           isPrismaErrorCode(code, PrismaErrorCode.TransactionFailure) ||
           (error instanceof Error &&
             /SQLITE_BUSY|database is locked/.test(error.message));
-        if ((busy || isPrismaErrorCode(code, PrismaErrorCode.UniqueConstraint)) && attempt < MAX_WRITE_RETRY_COUNT) {
+        if (busy && attempt < MAX_WRITE_RETRY_COUNT) {
           continue;
         }
         if (busy) conflict(BankErrorCode.WriteConflict);