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]>

deploy/k8s/overlays/encry/ingress-backend.yaml

@@ -0,0 +1,30 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: apicore-backend
+  annotations:
+    # Requires cert-manager with a ClusterIssuer named "letsencrypt-prod"
+    # (or swap for whatever issuer/cert mechanism the cluster already uses).
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    # Nur Traffic ueber Cloudflare zulassen. Die Middleware liegt im Repo
+    # rke2-cluster (security/cloudflare-only-middlewares.yaml). Sie schuetzt vor
+    # Direktzugriff am Origin vorbei, nicht vor fremden Cloudflare-Zonen.
+    traefik.ingress.kubernetes.io/router.middlewares: apicore-cloudflare-only@kubernetescrd
+spec:
+  # Der Cluster (RKE2) nutzt Traefik; nur damit wirkt die Middleware-Annotation oben.
+  ingressClassName: traefik
+  tls:
+    - hosts:
+        - api.apicore.example.com
+      secretName: apicore-backend-tls
+  rules:
+    - host: api.apicore.example.com
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: apicore-backend
+                port:
+                  number: 80