feat: improve desktop reliability and customization

Address reliability and consistency gaps across Agent Runtimes, persistence, settings, Knowledge, Magic Notes, Smart Heartbeat, and the download site. Runtime processes now have bounded lifecycle cleanup and atomic configuration rollback, while model packages and persisted mutations recover safely.

Add a configurable global shortcut, protect unsaved work, improve modal and keyboard behavior, localize the built-in project without rewriting stored data, and lazy-load heavy renderer routes under enforced bundle budgets. Align project forms and disabled controls with shared typography and interaction states, and strengthen website release metadata validation and navigation accessibility.

Release note: 修复 Runtime、设置、知识库、魔法笔记与智能心跳中的可靠性和交互一致性问题；新增可配置全局快捷键，改进无障碍与加载性能，并强化官网下载校验。

sites/index.html

@@ -5,11 +5,14 @@
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta
       name="description"
-      content="GoodBuddy 是跨平台桌面助手与 AI 编程工具台，以统一 Agent Runtime 连接直连模型、OpenCode、Continue 与 DeepSeek Harness。"
+      content="GoodBuddy 是免注册、支持信创软硬件的一站式 AI 助手，以统一 Agent Runtime 连接直连模型、OpenCode、Continue 与 DeepSeek Harness。"
     />
     <link rel="canonical" href="https://mesalogo.github.io/goodbuddy/" />
+    <link rel="alternate" hreflang="zh-CN" href="https://mesalogo.github.io/goodbuddy/" />
+    <link rel="alternate" hreflang="en" href="https://mesalogo.github.io/goodbuddy/en.html" />
+    <link rel="alternate" hreflang="x-default" href="https://mesalogo.github.io/goodbuddy/en.html" />
     <meta name="theme-color" content="#f6f8fb" />
-    <title>GoodBuddy｜桌面助手与 AI 编程工具台</title>
+    <title>GoodBuddy｜免注册、支持信创软硬件的一站式 AI 助手</title>
     <link
       rel="icon"
       href="./assets/goodbuddy-light.png"
@@ -23,6 +26,7 @@
       media="(prefers-color-scheme: dark)"
     />
     <link rel="stylesheet" href="./styles.css" />
+    <script src="./language.js"></script>
     <script>
       (() => {
         try {
@@ -73,6 +77,16 @@
         </nav>
 
         <div class="header-actions">
+          <a
+            class="language-link"
+            href="./en.html?lang=en"
+            lang="en"
+            hreflang="en"
+            aria-label="Switch to English"
+            data-language-link
+          >
+            EN
+          </a>
           <button class="icon-button" type="button" aria-label="切换为深色主题" data-theme-toggle>
             <svg class="theme-icon theme-icon--sun" viewBox="0 0 24 24" aria-hidden="true">
               <circle cx="12" cy="12" r="4" />
@@ -94,6 +108,7 @@
         </div>
       </div>
     </header>
+    <div class="menu-backdrop" aria-hidden="true" data-menu-backdrop></div>
 
     <main id="main-content">
       <section class="hero section" id="home" aria-labelledby="hero-title">
@@ -103,10 +118,14 @@
               <span class="status-dot" aria-hidden="true"></span>
               Windows · macOS · Linux
             </div>
-            <h1 id="hero-title">桌面助手，<br /><span>也是 AI 编程工具台。</span></h1>
+            <h1 id="hero-title">
+              免注册，<br />
+              支持信创软硬件的<br />
+              <span>一站式 AI 助手。</span>
+            </h1>
             <p class="hero-lead">
-              GoodBuddy 管理对话、知识、笔记与任务，也通过独创的统一 Agent Runtime
-              接入直连模型、OpenCode、Continue 和 DeepSeek Harness。
+              作为桌面助手与 AI 编程工具台，GoodBuddy 管理对话、知识、笔记与任务，
+              也通过独创的统一 Agent Runtime 接入直连模型、OpenCode、Continue 和 DeepSeek Harness。
               无需反复配置命令行，选择工具和项目即可开始。
             </p>
             <div class="hero-actions">
@@ -124,7 +143,7 @@
               </li>
               <li>
                 <svg viewBox="0 0 20 20" aria-hidden="true"><path d="m5 10 3 3 7-7" /></svg>
-                图形化配置，执行仍受控
+                无需注册 GoodBuddy 账号
               </li>
             </ul>
           </div>
@@ -155,7 +174,7 @@
                   <div class="side-item"><span></span>知识库</div>
                   <div class="side-item"><span></span>魔法笔记</div>
                   <div class="side-item"><span></span>智能心跳</div>
-                  <div class="side-item"><span></span>任务与活动</div>
+                  <div class="side-item"><span></span>运行记录</div>
                   <div class="sidebar-spacer"></div>
                   <div class="side-item"><span></span>设置</div>
                 </aside>
@@ -324,13 +343,9 @@
               </p>
             </article>
           </div>
-          <div class="download-release-status" data-release-status role="status">
-            正在连接官方下载源…
-          </div>
-
           <aside class="domestic-support" aria-labelledby="domestic-support-title">
             <div>
-              <p class="kicker">国产化适配</p>
+              <p class="kicker">信创软硬件支持</p>
               <h3 id="domestic-support-title">统信 UOS、银河麒麟，覆盖国产 x64 与 ARM64</h3>
               <p>使用对应的 Linux x64 或 arm64 安装包。</p>
             </div>
@@ -435,7 +450,7 @@
               </div>
               <span class="feature-number">06</span>
               <h3>从运行到结果，全程可追踪</h3>
-              <p>统一查看工具调用、取消、超时、Token 用量和活动记录，知道 Runtime 做了什么。</p>
+              <p>统一查看工具调用、取消、超时、Token 用量和运行记录，知道 Runtime 做了什么。</p>
             </article>
           </div>
         </div>
@@ -496,7 +511,7 @@
           </span>
           <span>GoodBuddy</span>
         </a>
-        <p>桌面助手｜AI 编程工具台</p>
+        <p>免注册、支持信创软硬件的一站式 AI 助手</p>
         <div class="footer-links">
           <a href="#download">下载</a>
           <a href="#features">Agent Runtime</a>
@@ -509,6 +524,7 @@
       </div>
     </footer>
 
+    <script src="./release-index.js"></script>
     <script src="./app.js"></script>
   </body>
 </html>