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/src/common/with-timeout.ts

@@ -0,0 +1,16 @@
+/** Rejects with `message` if `promise` has not settled within `ms`. */
+export async function withTimeout<T>(
+  promise: Promise<T>,
+  ms: number,
+  message: string,
+): Promise<T> {
+  let timer: NodeJS.Timeout;
+  const timeoutPromise = new Promise<never>((_, reject) => {
+    timer = setTimeout(() => reject(new Error(message)), ms);
+  });
+  try {
+    return await Promise.race([promise, timeoutPromise]);
+  } finally {
+    clearTimeout(timer!);
+  }
+}