修复：macOS Gateway 启动失败 Bootstrap failed: 5 (v0.4.8)

根因: plist 二进制路径过期（nvm/fnm 切版本后），launchctl 找不到程序
修复: launchctl bootstrap/kickstart 失败时回退到 CLI 直接 spawn Gateway
覆盖: start_service_impl + restart_service_impl 均有 fallback

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://raw.githubusercontent.com/tauri-apps/tauri/dev/crates/tauri-config-schema/schema.json",
   "productName": "ClawPanel",
-  "version": "0.4.7",
+  "version": "0.4.8",
   "identifier": "ai.openclaw.clawpanel",
   "build": {
     "frontendDist": "../dist",