feat: platform backbone and field capture complete (checkpoint)

Platform backbone (plan 2026-10-13-plattform-rueckgrat), all tasks reviewed:
- webhooks with delivery table, retries and stable delivery id
- calendar handlers; a finished task removes its Outlook event
- tasks, automations, inspections, varroa, treatments, feedings,
  harvests, colonies, wintering, stock and bottling record domain events
  in the same transaction; legacy post-commit calls removed
- row locks through one helper (lockRowForUpdate, lockRowsForShare,
  lockRowsForUpdate)
- job framework with JobRun, cli exit codes, cleanup, task templates,
  daily evaluation, hourly app-backup and the rekey job
- system API and page "Verwaltung > System" with retry
- @nestjs/schedule removed, guard tests against in-process schedulers

Field capture T3 (plan 2026-10-13-t3-erfassung-am-stand), all tasks reviewed:
- inspection photo offline without metadata
- bulk capture for treatments, feedings and varroa (backend + frontend)
- offline stand mode with service worker, offline pages and packs
- offline session, cold start and logout on shared devices

Docs: ARCHITECTURE.md assumptions and sections updated, TASKS.md.
Gates: backend lint, typecheck, 1770 unit, 420 e2e, build, no schema
drift; frontend lint, typecheck, 913 tests, build. Not rolled out.

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

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

@@ -15,6 +15,7 @@ import type { DomainEventEnvelope } from '../src/domain-events/domain-event-type
 import { DomainEventsService } from '../src/domain-events/domain-events.service';
 import { OnDomainEvent } from '../src/domain-events/on-domain-event.decorator';
 import { PrismaService } from '../src/prisma/prisma.service';
+import { WebhookDeliveryWorker } from '../src/webhooks/webhook-delivery.worker';
 import { WorkerModule } from '../src/worker/worker.module';
 import { DOMAIN_EVENT_POLL_MS } from '../src/worker/worker-runtime.service';
 
@@ -127,6 +128,7 @@ describe('Worker runtime (e2e)', () => {
   let worker: TestingModule;
   let prisma: PrismaService;
   let processOutbox: jest.SpyInstance;
+  let deliverWebhooks: jest.SpyInstance;
   let healthPort: number;
 
   async function recordTaskDueInTx(): Promise<void> {
@@ -164,6 +166,13 @@ describe('Worker runtime (e2e)', () => {
     processOutbox = jest
       .spyOn(worker.get(CalendarSyncService), 'processOutbox')
       .mockResolvedValue(undefined);
+    // Likewise the webhook loop (webhooks.e2e-spec.ts covers delivery): an
+    // unfiltered drain here would send the deliveries of parallel e2e files.
+    const webhookDeliveries = worker.get(WebhookDeliveryWorker);
+    deliverWebhooks = jest
+      .spyOn(webhookDeliveries, 'drain')
+      .mockResolvedValue(0);
+    jest.spyOn(webhookDeliveries, 'releaseStaleClaims').mockResolvedValue(0);
     await worker.init();
     // The first ticks run right after bootstrap; wait for the dispatcher's.
     const dispatcher = worker.get(DomainEventDispatcher);
@@ -210,6 +219,19 @@ describe('Worker runtime (e2e)', () => {
     );
   });
 
+  it('wakes the webhook delivery loop on a webhook_delivery notification', async () => {
+    expect(deliverWebhooks).toHaveBeenCalled();
+    const before = deliverWebhooks.mock.calls.length;
+
+    await notifyWorker(prisma, WAKE_CHANNELS.webhookDeliveries);
+
+    await expectWithin(
+      WAKE_UP_WITHIN_MS,
+      () => deliverWebhooks.mock.calls.length > before,
+      true,
+    );
+  });
+
   it('answers GET /health with 200 {"status":"ok"}', async () => {
     await expect(getJson(healthPort, '/health')).resolves.toEqual({
       status: 200,