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-ledger-local.e2e-spec.ts

@@ -263,7 +263,7 @@ describe('persistent ledger HTTP and cursor (SQLite)', () => {
       expect(upstream.getOperationsByCursor).not.toHaveBeenCalled();
     },
   );
-  it('keeps status versions stable between observational reads of a moving period', async () => {
+  it('keeps data revisions stable while observational reads expose current coverage', async () => {
     const observe = () =>
       request(app.getHttpServer())
         .get('/api/v1/brokerage-accounts/all/operations?sync=observe&limit=100')
@@ -276,7 +276,7 @@ describe('persistent ledger HTTP and cursor (SQLite)', () => {
     expect(second.meta.coverage?.requested).not.toEqual(
       first.meta.coverage?.requested,
     );
-    expect(second.meta.stateVersion).toBe(first.meta.stateVersion);
+    expect(second.meta.dataRevision).toBe(first.meta.dataRevision);
     await prisma.tbankOperationCoverage.updateMany({
       data: {
         to: new Date(Date.now() - 60_000),
@@ -285,10 +285,10 @@ describe('persistent ledger HTTP and cursor (SQLite)', () => {
     });
     const changed = (await observe().expect(200))
       .body as BrokerageOperationsResourceDto;
-    expect(changed.meta.stateVersion).not.toBe(second.meta.stateVersion);
+    expect(changed.meta.coverage?.asOf).not.toBe(second.meta.coverage?.asOf);
     expect(upstream.getOperationsByCursor).not.toHaveBeenCalled();
   });
-  it('reads shared metadata from SQLite and changes stateVersion without invalidating a row cursor', async () => {
+  it('reads shared metadata from SQLite without invalidating a row cursor', async () => {
     const before = (await get('limit=1&sync=observe').expect(200))
       .body as BrokerageOperationsResourceDto;
     assert(before.data?.nextCursor);
@@ -323,7 +323,6 @@ describe('persistent ledger HTTP and cursor (SQLite)', () => {
     const after = (await get('limit=1&sync=observe').expect(200))
       .body as BrokerageOperationsResourceDto;
     expect(after.data?.items[0].logoName).toBe('saved.png');
-    expect(after.meta.stateVersion).not.toBe(before.meta.stateVersion);
     expect(after.meta.dataRevision).toBe(before.meta.dataRevision);
     await get(
       `limit=1&sync=observe&cursor=${encodeURIComponent(before.data.nextCursor)}`,