fix(lint): auto-fix ruff violations and tune lint rules

- Auto-fixed 4,496 lint issues (import sorting, modern syntax, etc.)
- Added ignore rules for patterns intentional in this codebase:
  E402 (late imports), E712 (SQLAlchemy filters), B904 (raise from),
  SIM108/SIM105/SIM117 (readability preferences)
- Added per-file ignores for tests and scripts
- Excluded broken scripts/rename_terminology.py (has curly quotes)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/loyalty/services/points_service.py

@@ -27,7 +27,7 @@ from app.modules.loyalty.exceptions import (
     LoyaltyProgramInactiveException,
     StaffPinRequiredException,
 )
-from app.modules.loyalty.models import LoyaltyCard, LoyaltyTransaction, TransactionType
+from app.modules.loyalty.models import LoyaltyTransaction, TransactionType
 from app.modules.loyalty.services.card_service import card_service
 from app.modules.loyalty.services.pin_service import pin_service