refactor: 移除旧 operators/ 模块和 base/ 层

operators/ 模块已被 pages/ 模块完全替代，base/ 中的 LibOperator 和 MsgBase
不再被任何新代码引用。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/base/LibOperator.py

@@ -1,36 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-Copyright (c) 2025 KenanZhu.
-All rights reserved.
-
-This software is provided "as is", without any warranty of any kind.
-You may use, modify, and distribute this file under the terms of the MIT License.
-See the LICENSE file for details.
-"""
-import queue
-
-from base.MsgBase import MsgBase
-
-
-class LibOperator(MsgBase):
-    """
-        Base abstract class for library operation.
-
-        This class provides the foundation for library-related operations, inheriting
-        message handling and tracing abilities from MsgBase. It serves as an abstract
-        base class that must be subclassed to implement specific library functionality.
-    """
-
-    def __init__(
-        self,
-        input_queue: queue.Queue,
-        output_queue: queue.Queue
-    ):
-
-        super().__init__(input_queue, output_queue)
-
-    def _waitResponseLoad(
-        self
-    ) -> bool:
-
-        pass

src/base/__init__.py

@@ -3,5 +3,4 @@
 
     Here are the classes and modules in this package:
     - MsgBase: Base class for messages.
-    - LibOperator: Base class for library operators.
 """