fix: macOS PATH detection + npm install error diagnosis (v0.4.1)

- Fix macOS Node.js/npm/openclaw detection by adding enhanced_path() with common install locations (/usr/local/bin, /opt/homebrew/bin, ~/.nvm, ~/.volta, etc.)
- Add npm install error diagnosis: auto-detect git missing (exit 128), ENOENT, permission denied, network errors, cache corruption
- Show macOS-specific hint when Node.js detection fails in setup page
- Add shared error-diagnosis.js module used by both setup and services pages
- Add troubleshooting section to README.md
- Bump version to 0.4.1

docs/index.html

@@ -34,7 +34,7 @@
     "description": "OpenClaw AI Agent 可视化管理面板，基于 Tauri v2 的跨平台桌面应用。支持仪表盘监控、多模型配置、实时 AI 聊天、记忆管理、Agent 管理、网关配置、内网穿透等功能。",
     "url": "https://claw.qt.cool/",
     "downloadUrl": "https://github.com/qingchencloud/clawpanel/releases/latest",
-    "softwareVersion": "0.4.0",
+    "softwareVersion": "0.4.1",
     "author": {
       "@type": "Organization",
       "name": "晴辰云 QingchenCloud",
@@ -429,7 +429,7 @@
     <div class="orb orb-1" id="orb1"></div>
     <div class="orb orb-2" id="orb2"></div>
     <div class="hero-inner">
-      <div class="reveal hero-badge"><span class="pulse"></span> v0.4.0 已发布 — Gateway 守护、配置同步、流式超时</div>
+      <div class="reveal hero-badge"><span class="pulse"></span> v0.4.1 已发布 — Gateway 守护、配置同步、流式超时</div>
       <h1 class="reveal hero-title">管理你的 <span class="gradient-text shimmer">AI Agent</span><br>从未如此直观</h1>
       <p class="reveal hero-subtitle">ClawPanel 是 <strong>OpenClaw</strong> 的可视化管理面板，基于 Tauri v2 构建。<br>仪表盘、模型配置、实时聊天、记忆管理 — 一站式掌控。</p>
       <div class="reveal hero-cta">
@@ -696,7 +696,7 @@
     <div class="orb orb-2" style="top:auto;bottom:-100px"></div>
     <div class="container-sm" style="position:relative;z-index:10">
       <div class="section-header">
-        <div class="reveal download-version"><span class="pulse"></span> v0.4.0 最新版</div>
+        <div class="reveal download-version"><span class="pulse"></span> v0.4.1 最新版</div>
         <h2 class="reveal section-title"><span class="gradient-text">下载安装</span></h2>
         <p class="reveal section-desc">选择你的操作系统，一键下载安装</p>
       </div>
@@ -706,11 +706,11 @@
           <h3>macOS</h3>
           <p class="dl-desc">支持 Apple Silicon 和 Intel 芯片</p>
           <div class="dl-links">
-            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.0_aarch64.dmg" target="_blank" rel="noopener">
+            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.1_aarch64.dmg" target="_blank" rel="noopener">
               Apple Silicon (M1/M2/M3/M4)
               <span class="dl-format">.dmg</span>
             </a>
-            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.0_x64.dmg" target="_blank" rel="noopener">
+            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.1_x64.dmg" target="_blank" rel="noopener">
               Intel 芯片
               <span class="dl-format">.dmg</span>
             </a>
@@ -721,11 +721,11 @@
           <h3>Windows</h3>
           <p class="dl-desc">支持 Windows 10 及以上版本</p>
           <div class="dl-links">
-            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.0_x64-setup.exe" target="_blank" rel="noopener">
+            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.1_x64-setup.exe" target="_blank" rel="noopener">
               安装程序
               <span class="dl-format">.exe</span>
             </a>
-            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.0_x64_en-US.msi" target="_blank" rel="noopener">
+            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.1_x64_en-US.msi" target="_blank" rel="noopener">
               MSI 安装包
               <span class="dl-format">.msi</span>
             </a>
@@ -736,11 +736,11 @@
           <h3>Linux</h3>
           <p class="dl-desc">支持主流 Linux 发行版</p>
           <div class="dl-links">
-            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.0_amd64.AppImage" target="_blank" rel="noopener">
+            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.1_amd64.AppImage" target="_blank" rel="noopener">
               通用版
               <span class="dl-format">.AppImage</span>
             </a>
-            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.0_amd64.deb" target="_blank" rel="noopener">
+            <a class="dl-link" href="https://github.com/qingchencloud/clawpanel/releases/latest/download/ClawPanel_0.4.1_amd64.deb" target="_blank" rel="noopener">
               Debian / Ubuntu
               <span class="dl-format">.deb</span>
             </a>