feat: 添加 Tauri 自动更新器插件支持 (updater plugin)

- 添加 tauri-plugin-updater / tauri-plugin-process Rust 依赖
- 注册 updater 和 process 插件到 Tauri 构建器
- 配置 tauri.conf.json 更新器端点与公钥占位
- 添加 @tauri-apps/plugin-updater / plugin-process npm 依赖
- 创建 useUpdater composable（静默检查、手动检查、下载进度、安装重启）
- 在 AppLayout 标题栏集成更新交互 UI（下载按钮、进度条、安装状态）
- 添加 .pnpm-store 到 .gitignore

pnpm-lock.yaml

@@ -17,6 +17,12 @@ importers:
       '@tauri-apps/plugin-opener':
         specifier: ^2
         version: 2.5.4
+      '@tauri-apps/plugin-process':
+        specifier: ^2
+        version: 2.3.1
+      '@tauri-apps/plugin-updater':
+        specifier: ^2
+        version: 2.10.1
       element-plus:
         specifier: ^2.14.4
         version: 2.14.4(vue@3.5.41(typescript@6.0.3))
@@ -261,6 +267,12 @@ packages:
   '@tauri-apps/plugin-opener@2.5.4':
     resolution: {integrity: sha512-1HnPkb+AmgO29HBazm4uPLKB+r7zzcTBW1d0fyYp1uP+jwtpoiNDGKMMzz58SFp49nOIrxdE3aUJtT57lfO9CQ==}
 
+  '@tauri-apps/plugin-process@2.3.1':
+    resolution: {integrity: sha512-nCa4fGVaDL/B9ai03VyPOjfAHRHSBz5v6F/ObsB73r/dA3MHHhZtldaDMIc0V/pnUw9ehzr2iEG+XkSEyC0JJA==}
+
+  '@tauri-apps/plugin-updater@2.10.1':
+    resolution: {integrity: sha512-NFYMg+tWOZPJdzE/PpFj2qfqwAWwNS3kXrb1tm1gnBJ9mYzZ4WDRrwy8udzWoAnfGCHLuePNLY1WVCNHnh3eRA==}
+
   '@types/lodash-es@4.17.12':
     resolution: {integrity: sha512-0NgftHUcV4v34VhXm8QBSftKVXtbkBG3ViCjs6+eJ5a6y6Mi/jiFGPc1sC7QK+9BFhWrURE3EOggmWaSxL9OzQ==}
 
@@ -705,6 +717,14 @@ snapshots:
     dependencies:
       '@tauri-apps/api': 2.11.1
 
+  '@tauri-apps/plugin-process@2.3.1':
+    dependencies:
+      '@tauri-apps/api': 2.11.1
+
+  '@tauri-apps/plugin-updater@2.10.1':
+    dependencies:
+      '@tauri-apps/api': 2.11.1
+
   '@types/lodash-es@4.17.12':
     dependencies:
       '@types/lodash': 4.17.25