refactor: clean up code by adding missing commas and improving import order

app/services/oauth_providers/base.py

@@ -1,5 +1,6 @@
 from abc import ABC, abstractmethod
-from typing import Dict, Any, Optional
+from typing import Any
+
 from authlib.integrations.flask_client import OAuth
 
 
@@ -16,23 +17,19 @@ class OAuthProvider(ABC):
     @abstractmethod
     def name(self) -> str:
         """Provider name (e.g., 'google', 'github')."""
-        pass
 
     @property
     @abstractmethod
     def display_name(self) -> str:
         """Human-readable provider name (e.g., 'Google', 'GitHub')."""
-        pass
 
     @abstractmethod
-    def get_client_config(self) -> Dict[str, Any]:
+    def get_client_config(self) -> dict[str, Any]:
         """Return OAuth client configuration."""
-        pass
 
     @abstractmethod
-    def get_user_info(self, token: Dict[str, Any]) -> Dict[str, Any]:
+    def get_user_info(self, token: dict[str, Any]) -> dict[str, Any]:
         """Extract user information from OAuth token response."""
-        pass
 
     def get_client(self):
         """Get or create OAuth client."""
@@ -52,14 +49,14 @@ class OAuthProvider(ABC):
         return client.authorize_redirect(redirect_uri).location
 
     def exchange_code_for_token(
-        self, code: str = None, redirect_uri: str = None
-    ) -> Dict[str, Any]:
+        self, code: str = None, redirect_uri: str = None,
+    ) -> dict[str, Any]:
         """Exchange authorization code for access token."""
         client = self.get_client()
         token = client.authorize_access_token()
         return token
 
-    def normalize_user_data(self, user_info: Dict[str, Any]) -> Dict[str, Any]:
+    def normalize_user_data(self, user_info: dict[str, Any]) -> dict[str, Any]:
         """Normalize user data to common format."""
         return {
             "id": user_info.get("id"),