feat: T03+T04 backend - FastAPI, DB models, Rentman integration, admin auth, APScheduler

backend/app/models/__init__.py

@@ -0,0 +1,8 @@
+"""Import all models for Alembic and Base metadata."""
+from app.models.equipment import EquipmentCache
+from app.models.rental_request import RentalRequest, RentalRequestItem
+from app.models.contact import Contact
+from app.models.admin_user import AdminUser
+from app.models.sync_log import SyncLog
+
+__all__ = ["EquipmentCache", "RentalRequest", "RentalRequestItem", "Contact", "AdminUser", "SyncLog"]