Refactor code for improved readability and consistency

- Cleaned up whitespace and formatting across multiple files for better readability.

app/routes/auth.py

@@ -281,19 +281,19 @@ def update_profile():
     from flask import request
     from app.database import db
     from app.models.user import User
-    
+
     data = request.get_json()
     if not data:
         return {"error": "No data provided"}, 400
-    
+
     user_data = get_current_user()
     if not user_data:
         return {"error": "User not authenticated"}, 401
-    
+
     user = User.query.get(int(user_data["id"]))
     if not user:
         return {"error": "User not found"}, 404
-    
+
     # Update allowed fields
     if "name" in data:
         name = data["name"].strip()
@@ -302,10 +302,10 @@ def update_profile():
         if len(name) > 100:
             return {"error": "Name too long (max 100 characters)"}, 400
         user.name = name
-    
+
     try:
         db.session.commit()
-        
+
         # Return fresh user data from database
         updated_user = {
             "id": str(user.id),
@@ -319,11 +319,8 @@ def update_profile():
             "plan": user.plan.to_dict() if user.plan else None,
             "credits": user.credits,
         }
-        
-        return {
-            "message": "Profile updated successfully",
-            "user": updated_user
-        }
+
+        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
@@ -337,50 +334,50 @@ def change_password():
     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:
         return {"error": "No data provided"}, 400
-    
+
     user_data = get_current_user()
     if not user_data:
         return {"error": "User not authenticated"}, 401
-    
+
     user = User.query.get(int(user_data["id"]))
     if not user:
         return {"error": "User not found"}, 404
-    
+
     new_password = data.get("new_password")
     current_password = data.get("current_password")
-    
+
     if not new_password:
         return {"error": "New password is required"}, 400
-    
+
     # Password validation
     if len(new_password) < 6:
         return {"error": "Password must be at least 6 characters long"}, 400
-    
+
     # Check authentication method: if user logged in via password, require current password
     # If user logged in via OAuth, they can change password without current password
     current_auth_method = user_data.get("provider", "unknown")
-    
+
     if user.password_hash and current_auth_method == "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"}, 400
-        
+            return {
+                "error": "Current password is required to change password"
+            }, 400
+
         if not check_password_hash(user.password_hash, current_password):
             return {"error": "Current password is incorrect"}, 400
     # If user logged in via OAuth (google, github, etc.), they can change password without current password
-    
+
     # Set the new password
     try:
         user.set_password(new_password)
         db.session.commit()
-        
-        return {
-            "message": "Password updated successfully"
-        }
+
+        return {"message": "Password updated successfully"}
     except Exception as e:
         db.session.rollback()
         return {"error": f"Failed to update password: {str(e)}"}, 500