feat: Service Registry + Bridge 解耦架构 + 全工程代码清理

## 架构升级：Service Registry + Bridge 模式

- 新增 PluginSDK/IPluginServices.h：10 个纯虚服务接口(IDataProvider/ILinkProvider/...)
- 新增 MavLinkServiceBridge：单 QObject 实现全部服务，隔离 MavLinkNode 依赖
- 升级 PluginManifest：支持 plugin.json 的 provides/consumes 声明式依赖
- 实现 ExtensionHost::autoWire()：元对象自省自动连接信号槽
- 集成到 AppController：initModules() 中创建桥接器并注册到 ServiceRegistry
- CockpitPlugin 演示服务发现：initialize() 中通过 PluginContext 查找服务

## 代码清理

- Plugins/opmap：~280 行死代码(waypointsetting 100行注释块/tilematrix 54行/等27个文件)
- Plugins/MavLinkNode：~200 行 GBK 乱码注释翻译为 UTF-8 + 12 行注释死代码
- Plugins/ToolsUI：~222 行死代码(ECU.cpp 82行/INS.cpp 113行/Parse/ToolsUI 等)
- StatusUI/Setting/MissionUI：~65 行注释死代码
- Cockpit/leftladder.cpp：10 处 GBK 乱码翻译为中文
- 清理头文件注释掉的 #include(19 处)、空 if-else 分支、注释变量声明

## 编译验证

- [100%] Built target GCS 零错误
- 运行时 timeout 3s 正常退出，无崩溃

Plugins/About/About.cpp

@@ -0,0 +1,15 @@
+#include "About.h"
+#include "ui_About.h"
+
+About::About(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::About)
+{
+    ui->setupUi(this);
+    setWindowTitle(tr("About"));
+}
+
+About::~About()
+{
+    delete ui;
+}

Plugins/About/About.h

@@ -0,0 +1,22 @@
+#ifndef ABOUT_H
+#define ABOUT_H
+
+#include <QWidget>
+
+namespace Ui {
+class About;
+}
+
+class About : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit About(QWidget *parent = nullptr);
+    ~About();
+
+private:
+    Ui::About *ui;
+};
+
+#endif // ABOUT_H

Plugins/About/About.ui

@@ -0,0 +1,21 @@
+<ui version="4.0">
+ <author/>
+ <comment/>
+ <exportmacro/>
+ <class>About</class>
+ <widget name="About" class="QWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+ </widget>
+ <pixmapfunction/>
+ <connections/>
+</ui>

Plugins/About/AboutPlugin.cpp

@@ -0,0 +1,13 @@
+#include "AboutPlugin.h"
+#include "About.h"
+
+QWidget *AboutPlugin::createWidget(QWidget *parent)
+{
+    return new About(parent);
+}
+
+extern "C" {
+    __declspec(dllexport) IPlugin* createPlugin() {
+        return new AboutPlugin();
+    }
+}

Plugins/About/AboutPlugin.h

@@ -0,0 +1,25 @@
+#include "IPlugin.h"
+#include <QIcon>
+#include <QWidget>
+
+class AboutPlugin : public QObject, public IPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "com.gcs.IPlugin/3.0" FILE "plugin.json")
+    Q_INTERFACES(IPlugin)
+
+public:
+    QString name() const override { return "about"; }
+    QString title() const override { return "关于"; }
+    QString version() const override { return "2.0.0"; }
+    QString description() const override { return "关于对话框与版本信息"; }
+    QIcon icon() const override { return {}; }
+
+    bool initialize(PluginContext *) override { return true; }
+    void onActivated() override {}
+    void onDeactivated() override {}
+    void onClose() override {}
+
+    QWidget *createWidget(QWidget *parent = nullptr) override;
+
+};

Plugins/About/CMakeLists.txt

@@ -0,0 +1,21 @@
+# About — 关于对话框插件（共享库 / DLL）
+
+add_library(AboutPlugin SHARED
+
+    About.cpp
+
+    AboutPlugin.h
+
+    AboutPlugin.cpp
+
+)
+
+
+
+target_include_directories(AboutPlugin PRIVATE
+
+    ${CMAKE_CURRENT_SOURCE_DIR}
+
+    ${CMAKE_SOURCE_DIR}/Plugins
+
+    ${CMAKE_SOURCE_DIR}/PluginSDK

Plugins/About/plugin.json

@@ -0,0 +1,21 @@
+{
+    "$schema": "../schemas/plugin.schema.json",
+    "name": "about",
+    "title": "关于",
+    "version": "2.0.0",
+    "author": "GCS Team",
+    "description": "关于对话框与版本信息",
+    "minEngineVersion": "2.0.0",
+    "entryPoint": "AboutPlugin",
+    "activationEvents": [
+        "onCommand:about"
+    ],
+    "contributes": {
+        "commands": [
+            {
+                "id": "about.show",
+                "label": "关于 GCS"
+            }
+        ]
+    }
+}