feat: 开机自启功能（tauri-plugin-autostart）

- Cargo.toml: 添加 tauri-plugin-autostart 依赖（桌面端）
- lib.rs: 初始化 autostart 插件（MacosLauncher::LaunchAgent）
- capabilities/default.json: 添加 autostart 权限
- settings.js: 面板设置新增开机自启开关（仅 Tauri 模式显示）
- package.json: 添加 @tauri-apps/plugin-autostart 前端依赖

src-tauri/Cargo.toml

@@ -32,3 +32,6 @@ base64 = "0.22"
 urlencoding = "2"
 regex = "1"
 tokio = { version = "1", features = ["process", "time"] }
+
+[target.'cfg(any(target_os = "macos", windows, target_os = "linux"))'.dependencies]
+tauri-plugin-autostart = "2"

src-tauri/capabilities/default.json

@@ -4,6 +4,9 @@
   "windows": ["main"],
   "permissions": [
     "core:default",
-    "shell:allow-open"
+    "shell:allow-open",
+    "autostart:allow-enable",
+    "autostart:allow-disable",
+    "autostart:allow-is-enabled"
   ]
 }

src-tauri/src/lib.rs

@@ -15,6 +15,10 @@ pub fn run() {
 
     tauri::Builder::default()
         .plugin(tauri_plugin_shell::init())
+        .plugin(tauri_plugin_autostart::init(
+            tauri_plugin_autostart::MacosLauncher::LaunchAgent,
+            None,
+        ))
         .register_uri_scheme_protocol("tauri", move |ctx, request| {
             let uri_path = request.uri().path();
             let path = if uri_path == "/" || uri_path.is_empty() {