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>

scripts/fix-openclaw-connection.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+# OpenClaw Gateway 连接修复脚本
+# 用于解决 "device signature invalid" 错误
+
+set -e
+
+echo "=== OpenClaw Gateway 连接修复脚本 ==="
+echo ""
+
+# 1. 停止 Gateway
+echo "步骤 1: 停止 Gateway..."
+openclaw gateway stop 2>/dev/null || true
+sleep 2
+
+# 2. 清除设备密钥
+echo "步骤 2: 清除设备密钥..."
+rm -rf ~/.openclaw/device*.json 2>/dev/null || true
+rm -rf ~/.openclaw/.device* 2>/dev/null || true
+
+# 3. 检查并修复配置
+echo "步骤 3: 检查配置..."
+if [ -f ~/.openclaw/openclaw.json ]; then
+    echo "当前 Gateway 配置:"
+    cat ~/.openclaw/openclaw.json | grep -A5 '"gateway"' | head -10
+fi
+
+# 4. 重新运行 onboarding
+echo ""
+echo "步骤 4: 重新运行 onboarding..."
+echo "请运行: openclaw onboard"
+echo ""
+
+# 5. 启动 Gateway
+echo "步骤 5: 启动 Gateway..."
+openclaw gateway start 2>&1
+
+sleep 5
+
+# 6. 检查状态
+echo ""
+echo "步骤 6: 检查状态..."
+openclaw status 2>&1 | head -20
+
+echo ""
+echo "=== 修复完成 ==="
+echo "如果问题仍然存在，请尝试:"
+echo "1. 删除 ~/.openclaw 目录并重新运行 openclaw onboard"
+echo "2. 检查防火墙是否阻止了端口 18789"