feat: Initialize wxauto WeChat automation project with job extraction tools

- Add wxauto package with WeChat UI automation and message handling capabilities
- Implement job_extractor.py for automated job posting extraction from WeChat groups
- Add job_extractor_gui.py providing graphical interface for job extraction tool
- Create comprehensive documentation in Chinese covering GUI usage, multi-group support, and quick start guides
- Add build configuration files (build_exe.py, build_exe.spec) for packaging as standalone executable
- Include utility scripts for WeChat interaction (auto_send_msg.py, get_history.py, receive_file_transfer.py)
- Add project configuration files (pyproject.toml, setup.cfg, requirements.txt)
- Include test files (test_api.py, test_com_fix.py) for API and compatibility validation
- Add Apache 2.0 LICENSE and comprehensive README documentation
- Configure .gitignore to exclude build artifacts, logs, and temporary files

wxauto/ui/base.py

@@ -0,0 +1,56 @@
+from wxauto import uiautomation as uia
+from wxauto.param import PROJECT_NAME
+from wxauto.logger import wxlog
+from abc import ABC, abstractmethod
+import win32gui
+from typing import Union
+import time
+
+class BaseUIWnd(ABC):
+    _ui_cls_name: str = None
+    _ui_name: str = None
+    control: uia.Control
+
+    @abstractmethod
+    def _lang(self, text: str):pass
+
+    def __repr__(self):
+        return f"<{PROJECT_NAME} - {self.__class__.__name__} at {hex(id(self))}>"
+    
+    def __eq__(self, other):
+        return self.control == other.control
+    
+    def __bool__(self):
+        return self.exists()
+
+    def _show(self):
+        if hasattr(self, 'HWND'):
+            win32gui.ShowWindow(self.HWND, 1)
+            win32gui.SetWindowPos(self.HWND, -1, 0, 0, 0, 0, 3)
+            win32gui.SetWindowPos(self.HWND, -2, 0, 0, 0, 0, 3)
+        self.control.SwitchToThisWindow()
+
+    def close(self):
+        try:
+            self.control.SendKeys('{Esc}')
+        except:
+            pass
+
+    def exists(self, wait=0):
+        try:
+            result = self.control.Exists(wait)
+            return result
+        except:
+            return False
+
+class BaseUISubWnd(BaseUIWnd):
+    root: BaseUIWnd
+    parent: None
+
+    def _lang(self, text: str):
+        if getattr(self, 'parent'):
+            return self.parent._lang(text)
+        else:
+            return self.root._lang(text)
+
+