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/package.json

@@ -31,7 +31,6 @@
     "@nestjs/jwt": "^11.0.2",
     "@nestjs/passport": "^11.0.5",
     "@nestjs/platform-express": "^11.0.1",
-    "@nestjs/schedule": "^12.0.1",
     "@nestjs/swagger": "^11.4.7",
     "@nestjs/throttler": "^6.5.0",
     "@prisma/adapter-pg": "^7.9.1",
@@ -40,6 +39,7 @@
     "class-transformer": "^0.5.1",
     "class-validator": "^0.15.1",
     "cookie-parser": "^1.4.7",
+    "cron": "^4.4.0",
     "helmet": "^8.3.0",
     "openid-client": "^6.8.4",
     "otplib": "^13.5.0",
@@ -96,7 +96,7 @@
       "^.+\\.(t|j)s$": "ts-jest"
     },
     "transformIgnorePatterns": [
-      "node_modules/(?!(otplib|@otplib|@scure|@noble|openid-client|oauth4webapi|jose|@nestjs/schedule|cron)/)"
+      "node_modules/(?!(otplib|@otplib|@scure|@noble|openid-client|oauth4webapi|jose|cron)/)"
     ],
     "collectCoverageFrom": [
       "**/*.(t|j)s"