feat: platform backbone and field capture, first part (checkpoint)

Platform backbone (plan 2026-10-13-plattform-rueckgrat), reviewed tasks:
- run roles api/worker/job/all with shared startup checks (Task 1)
- schema and migration for DomainEvent, deliveries, JobRun, ThrottlerHit (Task 2)
- audit, notifications and domain events written in the same transaction (Task 3)
- dispatcher with SKIP LOCKED claims, retries and stale release (Task 4)
- worker building blocks: tick, LISTEN/NOTIFY wake-up, health (Task 5)
- worker process and entry points (Task 6)
- throttler counters in Postgres (Task 19)
- separate keys per purpose with key ring (Task 20)
- public origin page without exact location (Task 22)
- shop keys split into read and write (Task 23)
- Kustomize base, components, overlay encry, CI validation (Task 26)

Field capture T3 (plan 2026-10-13-t3-erfassung-am-stand), reviewed tasks:
- brood frames, read endpoints, apiary overview and offline pack
- network basics, offline queue v3, navigation sheets, form building blocks
- new inspection with last-time hints and weather, varroa per day,
  treatment prefill, apiary page with round
- inspection photo (Task 10) is implemented, review pending

Not rolled out. Remaining tasks follow in later commits.

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

ApiCore-Backend/test/platform-schema.e2e-spec.ts

@@ -0,0 +1,55 @@
+import { PrismaService } from '../src/prisma/prisma.service';
+
+/**
+ * Schema-level guarantees of the platform backbone migration that the Prisma
+ * schema alone cannot express (UNLOGGED table, nullable unique dedupe key).
+ */
+describe('Platform backbone schema (e2e)', () => {
+  let prisma: PrismaService;
+  const suffix = `${Date.now()}-${Math.round(Math.random() * 1e6)}`;
+
+  beforeAll(() => {
+    prisma = new PrismaService();
+  });
+
+  afterAll(async () => {
+    await prisma.domainEvent.deleteMany({
+      where: { aggregateId: `t-${suffix}` },
+    });
+    await prisma.$disconnect();
+  });
+
+  it('creates ThrottlerHit as an UNLOGGED table', async () => {
+    const [row] = await prisma.$queryRaw<
+      { relpersistence: string }[]
+    >`SELECT relpersistence::text AS relpersistence FROM pg_class WHERE relname = 'ThrottlerHit'`;
+    expect(row.relpersistence).toBe('u');
+  });
+
+  it('keeps at most one event per dedupe key', async () => {
+    const data = {
+      type: 'TaskDue',
+      aggregateType: 'Task',
+      aggregateId: `t-${suffix}`,
+      payload: {},
+      correlationId: 'c',
+      dedupeKey: `TaskDue:t-${suffix}:2026-10-13`,
+    };
+    expect(
+      (
+        await prisma.domainEvent.createMany({
+          data: [data],
+          skipDuplicates: true,
+        })
+      ).count,
+    ).toBe(1);
+    expect(
+      (
+        await prisma.domainEvent.createMany({
+          data: [data],
+          skipDuplicates: true,
+        })
+      ).count,
+    ).toBe(0);
+  });
+});