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/core/routes/pages/admin.py

@@ -15,9 +15,9 @@ from sqlalchemy.orm import Session
 
 from app.api.deps import get_current_admin_optional, get_db, require_menu_access
 from app.modules.core.utils.page_context import get_admin_context
-from app.templates_config import templates
 from app.modules.enums import FrontendType
 from app.modules.tenancy.models import User
+from app.templates_config import templates
 
 router = APIRouter()
 

app/modules/core/routes/pages/merchant.py

@@ -15,7 +15,11 @@ from fastapi import APIRouter, Depends, Request
 from fastapi.responses import HTMLResponse, RedirectResponse
 from sqlalchemy.orm import Session
 
-from app.api.deps import get_current_merchant_from_cookie_or_header, get_current_merchant_optional, get_db
+from app.api.deps import (
+    get_current_merchant_from_cookie_or_header,
+    get_current_merchant_optional,
+    get_db,
+)
 from app.modules.core.utils.page_context import get_context_for_frontend
 from app.modules.enums import FrontendType
 from app.templates_config import templates

app/modules/core/routes/pages/store.py

@@ -13,8 +13,8 @@ from sqlalchemy.orm import Session
 
 from app.api.deps import get_current_store_from_cookie_or_header, get_db
 from app.modules.core.utils.page_context import get_store_context
-from app.templates_config import templates
 from app.modules.tenancy.models import User
+from app.templates_config import templates
 
 router = APIRouter()