feat: Remove unused get_user_credit_info method from CreditService

app/services/credit_service.py

@@ -106,34 +106,3 @@ class CreditService:
                 "error": str(e),
                 "message": "Credit refill failed",
             }
-
-    @staticmethod
-    def get_user_credit_info(user_id: int) -> dict:
-        """Get detailed credit information for a specific user.
-
-        Args:
-            user_id: The user's ID
-
-        Returns:
-            dict: User's credit information
-
-        """
-        user = User.query.get(user_id)
-        if not user:
-            return {"error": "User not found"}
-
-        if not user.plan:
-            return {"error": "User has no plan assigned"}
-
-        return {
-            "user_id": user.id,
-            "email": user.email,
-            "current_credits": user.credits,
-            "plan": {
-                "code": user.plan.code,
-                "name": user.plan.name,
-                "daily_credits": user.plan.credits,
-                "max_credits": user.plan.max_credits,
-            },
-            "is_active": user.is_active,
-        }