MAESTRO: Fix linting config and formatting

backend/app/core/config.py

@@ -52,7 +52,11 @@ class Settings(BaseSettings):
                 try:
                     parsed = json.loads(text)
                     if isinstance(parsed, list):
-                        return [str(item).strip() for item in parsed if str(item).strip()]
+                        return [
+                            str(item).strip()
+                            for item in parsed
+                            if str(item).strip()
+                        ]
                 except json.JSONDecodeError:
                     pass
             return [item.strip() for item in text.split(",") if item.strip()]

backend/tests/test_main.py

@@ -2,7 +2,6 @@ from fastapi.testclient import TestClient
 
 from app.main import app
 
-
 client = TestClient(app)