fix: 修复启动白屏与地图崩溃问题

- SetUseOpenGL(false): QGLWidget 在当前系统不兼容，改用软件渲染
- ExtensionHost_v2: 添加 contributionRegistry() getter 修复空指针
- main.cpp: 两阶段启动 (show → QTimer::singleShot → initialize)
- mainwindow: 分离构造函数与 initialize()，结尾调用 onTabIndexChanged(3)
- 修复 Qt DLL 部署：使用 windeployqt 确保运行时库版本匹配

App/AppController.h

@@ -28,6 +28,7 @@ class ServiceRegistry;
 
 class MenuBarUI;
 class MavLinkServiceBridge;
+class ContributionRegistry;
 
 namespace mapcontrol { class OPMapWidget; }
 
@@ -64,6 +65,7 @@ public:
     ExtensionHost   *extensionHost() const { return m_extHost; }
     PluginToolPanel *pluginToolPanel() const { return m_pluginPanel; }
     CommandRegistry *commandRegistry() const { return m_commandRegistry; }
+    ContributionRegistry *contributionRegistry() const { return m_contributionRegistry; }
     ThemeManager    *themeManager() const { return m_themeMgr; }
 
     void toggleToolsPanel();
@@ -104,7 +106,8 @@ private:
     PluginToolPanel *m_pluginPanel  = nullptr;
     ThemeManager    *m_themeMgr     = nullptr;
     CommandRegistry *m_commandRegistry = nullptr;
-    bool m_useNewToolsPanel = false;
+    ContributionRegistry *m_contributionRegistry = nullptr;
+    bool m_useNewToolsPanel = true;
 
     mapcontrol::OPMapWidget *m_map = nullptr;