feat: T4 waves 1-2 - rule configs, schema, suggestions core, season, rule forms

- Rule configs with typed parsers and registry; Berlin day helpers
- Schema: T4 enums, Suggestion table, feed vocabulary (feedStatus as
  ColonyCondition with legacy text mapping), split queen source,
  varroa sample size; migration harness for data migrations
- SuggestionsService: propose/refresh/resolve/obsolete/expire,
  accept/dismiss/reopen incl. bulk, lock order, concurrency e2e
- SeasonService: phenology-based segments, inspection/varroa due dates,
  queen age; TimeEventsStep with JobPartialFailure
- Frontend: per-rule settings forms with visible value sources

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

ApiCore-Backend/.gitignore

@@ -18,3 +18,6 @@ prisma/seed.d.ts
 # Locally uploaded documents/images (Modul 29) and their test-run counterpart
 /uploads/
 /test-uploads/
+
+# T4 migration test harness: scratch copies of the migration folders
+/.tmp-migrations/