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>

scripts/seed/seed_demo.py

@@ -42,6 +42,7 @@ sys.path.insert(0, str(project_root))
 # =============================================================================
 # MODE DETECTION (from environment variable set by Makefile)
 # =============================================================================
+import contextlib
 import os
 
 from sqlalchemy import delete, select
@@ -50,25 +51,33 @@ from sqlalchemy.orm import Session
 from app.core.config import settings
 from app.core.database import SessionLocal
 from app.core.environment import get_environment, is_production
-from middleware.auth import AuthManager
+from app.modules.catalog.models import Product
+from app.modules.cms.models import ContentPage, StoreTheme
+from app.modules.customers.models.customer import Customer, CustomerAddress
+from app.modules.marketplace.models import (
+    MarketplaceImportJob,
+    MarketplaceProduct,
+    MarketplaceProductTranslation,
+)
+from app.modules.orders.models import Order, OrderItem
+
 # =============================================================================
 # MODEL IMPORTS
 # =============================================================================
 # ALL models must be imported before any ORM query so SQLAlchemy can resolve
 # cross-module string relationships (e.g. Store→StoreEmailTemplate,
 # Platform→SubscriptionTier, Product→Inventory).
-
 # Core modules
-from app.modules.tenancy.models import Merchant, PlatformAlert, User, Role, Store, StoreUser, StoreDomain
-from app.modules.cms.models import ContentPage, StoreTheme
-from app.modules.catalog.models import Product
-from app.modules.customers.models.customer import Customer, CustomerAddress
-from app.modules.orders.models import Order, OrderItem
-from app.modules.marketplace.models import (
-    MarketplaceImportJob,
-    MarketplaceProduct,
-    MarketplaceProductTranslation,
+from app.modules.tenancy.models import (
+    Merchant,
+    PlatformAlert,
+    Role,
+    Store,
+    StoreDomain,
+    StoreUser,
+    User,
 )
+from middleware.auth import AuthManager
 
 # Optional modules — import to register models with SQLAlchemy
 for _mod in [
@@ -78,10 +87,8 @@ for _mod in [
     "app.modules.messaging.models",
     "app.modules.loyalty.models",
 ]:
-    try:
+    with contextlib.suppress(ImportError):
         __import__(_mod)
-    except ImportError:
-        pass
 
 SEED_MODE = os.getenv("SEED_MODE", "normal")  # normal, minimal, reset
 FORCE_RESET = os.getenv("FORCE_RESET", "false").lower() in ("true", "1", "yes")
@@ -562,7 +569,7 @@ def reset_all_data(db: Session):
     for table in tables_to_clear:
         if table == ContentPage:
             # Only delete store content pages, keep platform defaults
-            db.execute(delete(ContentPage).where(ContentPage.store_id != None))
+            db.execute(delete(ContentPage).where(ContentPage.store_id is not None))
         else:
             db.execute(delete(table))
 
@@ -1104,8 +1111,8 @@ def print_summary(db: Session):
     team_member_count = db.query(StoreUser).filter(StoreUser.user_type == "member").count()
     customer_count = db.query(Customer).count()
     product_count = db.query(Product).count()
-    platform_pages = db.query(ContentPage).filter(ContentPage.store_id == None).count()
-    store_pages = db.query(ContentPage).filter(ContentPage.store_id != None).count()
+    platform_pages = db.query(ContentPage).filter(ContentPage.store_id is None).count()
+    store_pages = db.query(ContentPage).filter(ContentPage.store_id is not None).count()
 
     print("\n📊 Database Status:")
     print(f"  Merchants:        {merchant_count}")