chore: implement hourly reset CronJob for prod and UAT

- Add ALLOW_RESET env var override to reset.ts safety guard
- Add reset Docker build target to Dockerfile
- Add reset image build step to CI docker job
- Add reset image tag update to CD job dev overlay update

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/Dockerfile

@@ -43,3 +43,7 @@ CMD ["pnpm", "db:migrate"]
 # Seed stage — populates the database with test data
 FROM builder AS seed
 CMD ["pnpm", "db:seed"]
+
+# Reset stage — drops all tables, re-runs migrations, and re-seeds
+FROM builder AS reset
+CMD ["pnpm", "db:reset"]