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

app/routes/auth.py

@@ -31,7 +31,7 @@ def callback(provider):
         # If successful, redirect to frontend dashboard with cookies
         if auth_response.status_code == 200:
             redirect_response = make_response(
-                redirect("http://localhost:3000/dashboard")
+                redirect("http://localhost:3000/dashboard"),
             )
 
             # Copy all cookies from the auth response
@@ -39,9 +39,8 @@ def callback(provider):
                 redirect_response.headers.add("Set-Cookie", cookie)
 
             return redirect_response
-        else:
-            # If there was an error, redirect to login with error
-            return redirect("http://localhost:3000/login?error=oauth_failed")
+        # If there was an error, redirect to login with error
+        return redirect("http://localhost:3000/login?error=oauth_failed")
 
     except Exception as e:
         error_msg = str(e).replace(" ", "_").replace('"', "")
@@ -129,7 +128,7 @@ def refresh():
 def link_provider(provider):
     """Link a new OAuth provider to current user account."""
     redirect_uri = url_for(
-        "auth.link_callback", provider=provider, _external=True
+        "auth.link_callback", provider=provider, _external=True,
     )
     return auth_service.redirect_to_login(provider, redirect_uri)
 
@@ -168,19 +167,19 @@ def link_callback(provider):
 
         if not provider_data.get("id"):
             return {
-                "error": "Failed to get user information from provider"
+                "error": "Failed to get user information from provider",
             }, 400
 
         # Check if this provider is already linked to another user
         from app.models.user_oauth import UserOAuth
 
         existing_provider = UserOAuth.find_by_provider_and_id(
-            provider, provider_data["id"]
+            provider, provider_data["id"],
         )
 
         if existing_provider and existing_provider.user_id != user.id:
             return {
-                "error": "This provider account is already linked to another user"
+                "error": "This provider account is already linked to another user",
             }, 409
 
         # Link the provider to current user
@@ -210,7 +209,6 @@ def unlink_provider(provider):
 
         from app.database import db
         from app.models.user import User
-        from app.models.user_oauth import UserOAuth
 
         user = User.query.get(current_user_id)
         if not user:
@@ -224,7 +222,7 @@ def unlink_provider(provider):
         oauth_provider = user.get_provider(provider)
         if not oauth_provider:
             return {
-                "error": f"Provider '{provider}' not linked to this account"
+                "error": f"Provider '{provider}' not linked to this account",
             }, 404
 
         db.session.delete(oauth_provider)
@@ -279,6 +277,7 @@ def me():
 def update_profile():
     """Update current user profile information."""
     from flask import request
+
     from app.database import db
     from app.models.user import User
 
@@ -323,7 +322,7 @@ def update_profile():
         return {"message": "Profile updated successfully", "user": updated_user}
     except Exception as e:
         db.session.rollback()
-        return {"error": f"Failed to update profile: {str(e)}"}, 500
+        return {"error": f"Failed to update profile: {e!s}"}, 500
 
 
 @bp.route("/password", methods=["PUT"])
@@ -331,9 +330,10 @@ def update_profile():
 def change_password():
     """Change or set user password."""
     from flask import request
+    from werkzeug.security import check_password_hash
+
     from app.database import db
     from app.models.user import User
-    from werkzeug.security import check_password_hash
 
     data = request.get_json()
     if not data:
@@ -365,7 +365,7 @@ def change_password():
         # User has a password AND logged in via password, require current password for verification
         if not current_password:
             return {
-                "error": "Current password is required to change password"
+                "error": "Current password is required to change password",
             }, 400
 
         if not check_password_hash(user.password_hash, current_password):
@@ -380,4 +380,4 @@ def change_password():
         return {"message": "Password updated successfully"}
     except Exception as e:
         db.session.rollback()
-        return {"error": f"Failed to update password: {str(e)}"}, 500
+        return {"error": f"Failed to update password: {e!s}"}, 500