fix: reuse referenced message media in dashboard quotes

db/message_storage.py

@@ -61,6 +61,18 @@ class MessageStorageDB(BaseDBOperator):
         sql += " ORDER BY timestamp DESC LIMIT 1"
         return self.execute_query(sql, tuple(params), fetch_one=True)
 
+    def get_message_by_message_id(self, message_id: int | str) -> Optional[Dict]:
+        """根据 message_id 获取单条消息"""
+        sql = """
+        SELECT id, group_id, timestamp, sender, content, message_type,
+               attachment_url, message_id, message_xml, message_thumb, image_path
+        FROM messages
+        WHERE message_id = %s
+        ORDER BY id DESC
+        LIMIT 1
+        """
+        return self.execute_query(sql, (message_id,), fetch_one=True)
+
     def get_member_recent_messages(self, group_id: str, wxid: str, days: int = 30,
                                    limit: int = 200, include_today: bool = True) -> List[Dict]:
         """获取指定群成员近期消息"""