chore: fix all ruff lint errors + format — 0 errors, 306 tests pass

app/main.py

@@ -8,11 +8,24 @@ from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
 from app.config import get_settings
-from app.core.middleware import CSRFMiddleware
 from app.core.db import close_engine, get_engine
+from app.core.middleware import CSRFMiddleware
 from app.core.service_container import get_container
 from app.plugins.registry import get_registry
-from app.routes import auth, users, roles, tenants, health, notifications, companies, contacts, import_export, plugins, ai_copilot, workflows
+from app.routes import (
+    ai_copilot,
+    auth,
+    companies,
+    contacts,
+    health,
+    import_export,
+    notifications,
+    plugins,
+    roles,
+    tenants,
+    users,
+    workflows,
+)
 
 
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