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/messaging/services/admin_notification_service.py

@@ -12,12 +12,15 @@ import logging
 from datetime import datetime, timedelta
 from typing import Any
 
-from sqlalchemy import and_, case, func
+from sqlalchemy import and_, case
 from sqlalchemy.orm import Session
 
 from app.modules.messaging.models.admin_notification import AdminNotification
 from app.modules.tenancy.models import PlatformAlert
-from app.modules.tenancy.schemas.admin import AdminNotificationCreate, PlatformAlertCreate
+from app.modules.tenancy.schemas.admin import (
+    AdminNotificationCreate,
+    PlatformAlertCreate,
+)
 
 logger = logging.getLogger(__name__)