fix: 修正代理数据提取逻辑以使用字典格式

DB.py

@@ -108,7 +108,7 @@ class DBVidcon:
         sql = "SELECT rn, parameter FROM proxy_agent"
         self.cursor.execute(sql)
         rows = self.cursor.fetchall()
-        result = {rn: param for rn, param in rows}
+        result = {row['rn']: row['parameter'] for row in rows}
         self.close()
         return result
 
@@ -245,8 +245,6 @@ class DBVidcon:
                     print("[交由Redis处理]")
                     break
 
-
-
     def flush(self):
         """批量执行完后手动提交。"""
         self.conn.commit()