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

Plugins/Logging/CMakeLists.txt

@@ -0,0 +1,33 @@
+# Logging — Unified Logging Plugin (Shared Library / DLL)
+add_library(LoggingPlugin SHARED
+    LoggingPlugin.cpp
+    LogViewer.cpp
+    LoggingPlugin.h
+    LogViewer.h
+)
+
+target_include_directories(LoggingPlugin PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_SOURCE_DIR}/Plugins
+    ${CMAKE_SOURCE_DIR}/PluginSDK
+)
+
+target_link_libraries(LoggingPlugin PUBLIC
+    PluginSDK
+    Qt${QT_VERSION_MAJOR}::Core
+    Qt${QT_VERSION_MAJOR}::Widgets
+)
+
+set_target_properties(LoggingPlugin PROPERTIES
+    PREFIX ""
+    SUFFIX ".dll"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin/plugins/Logging"
+    WINDOWS_EXPORT_ALL_SYMBOLS ON
+    LINK_FLAGS "-Wl,--export-all-symbols"
+)
+
+add_custom_command(TARGET LoggingPlugin POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+        "${CMAKE_CURRENT_SOURCE_DIR}/plugin.json"
+        "${CMAKE_BINARY_DIR}/bin/plugins/Logging/plugin.json"
+)