feat: add hourly portfolio sync history

src/modules/investments/operations/domain/operations-sync-plan.spec.ts

@@ -71,7 +71,7 @@ describe('operation completeness and freshness', () => {
   const asOf = new Date('2026-09-25T12:00:00Z');
   const covered = { accountId: 'a', from, to: asOf, asOf, fetchedAt: asOf };
 
-  it.each([1, 299, 300])(
+  it.each([1, 3599, 3600])(
     'preserves the observed complete end after %s seconds, separately from TTL',
     (seconds) => {
       const now = new Date(asOf.valueOf() + seconds * 1000);
@@ -85,10 +85,10 @@ describe('operation completeness and freshness', () => {
         availability: 'complete',
         asOf,
         to: asOf,
-        stale: seconds >= 300,
+        stale: seconds >= 3600,
       });
       expect(plan.load).toEqual(
-        seconds >= 300 ? [{ accountId: 'a', from, to: now }] : [],
+        [],
       );
     },
   );