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.

test/tbank-screen-sync.e2e-spec.ts

@@ -103,10 +103,11 @@ describe('screen sync HTTP and SQLite', () => {
     release([]);
     const done = await settled(ids[0]);
     expect(done.state).toBe('succeeded');
-    expect(done.resources[0]).toMatchObject({
-      resourceKey: 'accounts',
-      availability: 'complete',
-    });
+    const accounts = await request(app.getHttpServer())
+      .get('/api/v1/brokerage-accounts?sync=observe')
+      .set('Authorization', auth())
+      .expect(200);
+    expect(accounts.body).toMatchObject({ data: [], meta: { availability: 'complete' } });
     expect(JSON.stringify(done)).not.toMatch(
       /revision|attemptId|encryptedToken|synthetic/,
     );
@@ -297,20 +298,17 @@ describe('screen sync HTTP and SQLite', () => {
       .set('Authorization', auth())
       .expect(200);
     const first = before.body as {
-      meta: { dataRevision: string; stateVersion: string };
+      meta: { dataRevision: string };
     };
     const last = after.body as {
       data: { items: unknown[] };
       meta: {
         dataRevision: string;
-        stateVersion: string;
         sync: { id: string };
       };
     };
     expect(last.data.items).toEqual([]);
     expect(last.meta.dataRevision).toBe(first.meta.dataRevision);
-    expect(last.meta.stateVersion).not.toBe(first.meta.stateVersion);
-    expect(done.resources[0].stateVersion).toBe(last.meta.stateVersion);
     await status(last.meta.sync.id).expect(200);
     expect(upstream.getOperationsByCursor).toHaveBeenCalledTimes(1);
   });
@@ -389,7 +387,6 @@ describe('screen sync HTTP and SQLite', () => {
       try {
         expect((await status(second).expect(200)).body).toMatchObject({
           state: 'running',
-          progress: { completed: 1, total: 2, discovering: false },
         });
         await status(second, 'other').expect(404);
       } finally {
@@ -401,7 +398,6 @@ describe('screen sync HTTP and SQLite', () => {
       expect(await settled(second)).toMatchObject({
         state: outcome,
         errorCode: outcome === 'failed' ? 'TBANK_UNAVAILABLE' : null,
-        progress: { completed: 2, total: 2, discovering: false },
       });
       await prisma.tbankConnection.delete({ where: { userId: 'owner' } });
       await status(second).expect(404);