feat(ui): 新增多个UI测试窗口并优化主窗口功能

- 添加main_window_test.py用于UI功能测试
- 添加main_window_simple.py简化版界面
- 添加main_window_new.py和main_window_final.py完整功能界面
- 优化主窗口高级面板切换逻辑
- 更新.gitignore忽略测试文件

ui/main_window.py

@@ -310,11 +310,10 @@ class MainWindow(QMainWindow):
             else:
                 QMessageBox.warning(self, "警告", "术语格式不正确，请使用 'A = B' 格式")
     
-    def toggle_advanced_panel(self):
+    def toggle_advanced_panel(self, checked):
         """切换高级辅助面板的显示/隐藏状态"""
-        is_visible = not self.advanced_content.isVisible()
-        self.advanced_content.setVisible(is_visible)
-        self.advanced_toggle.setText("▲" if is_visible else "▼")
+        self.advanced_content.setVisible(checked)
+        self.advanced_toggle.setText("▲" if checked else "▼")
     
     def show_term_context_menu(self, pos):
         """显示术语项右键菜单"""