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>

extract_privacy.js

@@ -0,0 +1,26 @@
+const fs = require('fs'); const content = fs.readFileSync('g:/ZClaw/desktop/src/components/Settings/Privacy.tsx', 'utf8'); fs.writeFileSync('g:/ZClaw/desktop/src/components/Settings/Privacy.tsx', content.substring(0, content.lastIndexOf('<div className="flex gap-8">')) + '        <div className="flex gap-4 mt-6 pt-4 border-t border-gray-100">
+          <a href="#" className="text-orange-600 text-xs hover:underline flex items-center gap-1">
+            <ExternalLink className="w-3 h-3" />
+            <20><>˽<EFBFBD><CBBD><EFBFBD><EFBFBD>
+          </a>
+          <a href="#" className="text-orange-600 text-xs hover:underline flex items-center gap-1">
+            <ExternalLink className="w-3 h-3" />
+            <20>û<EFBFBD>Э<EFBFBD><D0AD>
+          </a>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function Toggle({ checked, onChange }: { checked: boolean; onChange: (v: boolean) => void }) {
+  return (
+    <button
+      onClick={() => onChange(!checked)}
+      className={`w-11 h-6 rounded-full transition-colors relative flex-shrink-0 mt-1 `}
+    >
+      <span className={`block w-5 h-5 bg-white rounded-full shadow-sm absolute top-0.5 transition-all `} />
+    </button>
+  );
+}
+');