feat(hands): restructure Hands UI with Chinese localization

Major changes:
- Add HandList.tsx component for left sidebar
- Add HandTaskPanel.tsx for middle content area
- Restructure Sidebar tabs: 分身/HANDS/Workflow
- Remove Hands tab from RightPanel
- Localize all UI text to Chinese
- Archive legacy OpenClaw documentation
- Add Hands integration lessons document
- Update feature checklist with new components

UI improvements:
- Left sidebar now shows Hands list with status icons
- Middle area shows selected Hand's tasks and results
- Consistent styling with Tailwind CSS
- Chinese status labels and buttons

Documentation:
- Create docs/archive/openclaw-legacy/ for old docs
- Add docs/knowledge-base/hands-integration-lessons.md
- Update docs/knowledge-base/feature-checklist.md
- Update docs/knowledge-base/README.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

desktop/src/components/Settings/About.tsx

@@ -1,39 +1,42 @@
+import { RefreshCw, Cat } from 'lucide-react';
+
 export function About() {
   return (
-    <div>
+    <div className="max-w-3xl">
       <div className="flex items-center gap-4 mb-8">
-        <div className="w-16 h-16 bg-gradient-to-br from-orange-400 to-red-500 rounded-2xl flex items-center justify-center text-3xl shadow-lg">
-          🦞
+        <div className="w-16 h-16 bg-black rounded-2xl flex items-center justify-center text-white shadow-md">
+          <Cat className="w-10 h-10" />
         </div>
         <div>
-          <h1 className="text-2xl font-bold text-gray-900">ZCLAW</h1>
-          <p className="text-sm text-orange-500">版本 0.2.0</p>
+          <h1 className="text-xl font-bold text-gray-900">ZCLAW</h1>
+          <div className="text-sm text-gray-500">版本 0.2.0</div>
         </div>
       </div>
 
-      <div className="bg-gray-50 rounded-xl p-5 mb-4">
-        <div className="flex justify-between items-center">
+      <div className="space-y-4">
+        <div className="bg-white rounded-xl border border-gray-200 p-4 flex justify-between items-center shadow-sm">
+          <span className="text-sm text-gray-700">检查更新</span>
+          <button className="text-xs text-white bg-orange-500 hover:bg-orange-600 px-4 py-2 rounded-lg flex items-center gap-1 transition-colors">
+            <RefreshCw className="w-3 h-3" />
+            检查更新
+          </button>
+        </div>
+
+        <div className="bg-white rounded-xl border border-gray-200 p-4 flex justify-between items-center shadow-sm">
           <div>
-            <h2 className="text-sm font-bold text-gray-900">检查更新</h2>
+            <div className="text-sm text-gray-700 mb-1">更新日志</div>
+            <div className="text-xs text-gray-500">查看当前版本的更新内容</div>
           </div>
-          <button className="text-sm bg-orange-500 text-white rounded-lg px-4 py-1.5 hover:bg-orange-600 flex items-center gap-1">
-            🔄 检查更新
+          <button className="text-xs px-4 py-2 border border-gray-200 rounded-lg hover:bg-gray-50 transition-colors">
+            更新日志
           </button>
         </div>
       </div>
 
-      <div className="bg-gray-50 rounded-xl p-5 mb-8">
-        <div className="flex justify-between items-center">
-          <div>
-            <h2 className="text-sm font-bold text-gray-900">更新日志</h2>
-            <p className="text-xs text-gray-500 mt-0.5">查看当前版本的更新内容</p>
-          </div>
-          <button className="border border-gray-300 rounded-lg px-4 py-1.5 text-sm hover:bg-gray-100">更新日志</button>
-        </div>
+      <div className="mt-12 text-center text-xs text-gray-400">
+        2026 ZCLAW | Powered by OpenClaw
       </div>
-
       <div className="text-center text-xs text-gray-400 space-y-1">
-        <p>© 2026 ZCLAW | Powered by OpenClaw</p>
         <p>基于 OpenClaw 开源框架定制</p>
         <div className="flex justify-center gap-4 mt-3">
           <a href="#" className="text-orange-500 hover:text-orange-600">隐私政策</a>