feat: T6 wave 4 – notice PDFs, compliance notifications, readiness core

- Authority notice PDFs: pure model plus renderer, TSK count in A4
  landscape, FEHLT for missing particulars, stored totals with correction
  note; GET /authority-notices/:id/pdf with compliance:read.
- Compliance notifications in category COMPLIANCE: herd change and TSK
  reference day, at most one unread per topic and user (advisory lock);
  daily rule TskReferenceDayReached with Berlin day and catch-up; handlers
  in API and worker.
- Readiness core: live evaluation of seven pure rules, fingerprinted
  acknowledgements that reopen when revoked or stale, subject masking,
  read-only GET paths; READINESS_RULES injectable; kept out of the worker.
- e2e hygiene: no unscoped deletes, seeded settings rows saved/restored.
- ARCHITECTURE.md §12.8–12.10, §10 handler rows, Annahmen 78–85.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Backend/test/worker-runtime.e2e-spec.ts

@@ -11,6 +11,7 @@ import {
   DispatchFilter,
   DomainEventDispatcher,
 } from '../src/domain-events/domain-event-dispatcher';
+import { DomainEventRegistry } from '../src/domain-events/domain-event-registry';
 import type { DomainEventEnvelope } from '../src/domain-events/domain-event-types';
 import { DomainEventsService } from '../src/domain-events/domain-events.service';
 import { OnDomainEvent } from '../src/domain-events/on-domain-event.decorator';
@@ -217,6 +218,15 @@ describe('Worker runtime (e2e)', () => {
     );
   });
 
+  it('registers the compliance handlers in the worker context too', () => {
+    expect(worker.get(DomainEventRegistry).handlerIds()).toEqual(
+      expect.arrayContaining([
+        'compliance.herd-change',
+        'compliance.tsk-reference-day',
+      ]),
+    );
+  });
+
   it('wakes the calendar outbox loop on a calendar_sync notification', async () => {
     expect(processOutbox).toHaveBeenCalled();
     const before = processOutbox.mock.calls.length;