feat: add hourly portfolio sync history

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

@@ -12,7 +12,6 @@ import type { TbankInstrument } from './tbank.client';
 
 import { PrismaService } from '../../prisma/prisma.service';
 import { TbankErrorCode } from './tbank-error-code';
-import { tbankSourceTtlMs } from './tbank-source.policy';
 
 const FIRST_BATCH_OFFSET = 0;
 const UNCHANGED_REVISION_INCREMENT = 0;
@@ -320,11 +319,7 @@ function selectMetadata(
   return {
     data: usefulUid ? uid.data : (figi.data ?? uid.data),
     complete,
-    fresh:
-      complete &&
-      // eslint-disable-next-line sonarjs/different-types-comparison -- The conditional aggregation is nullable at runtime; keep the freshness guard.
-      fetchedAt !== null &&
-      Date.now() - fetchedAt.valueOf() < tbankSourceTtlMs.metadata,
+    fresh: complete,
     fetchedAt,
     dataRevision: used
       .map(