Add Chinese documentation for custom skills development and reference guide

- Created a new document for custom skills development (`custom.md`) detailing the structure, creation, implementation, and best practices for developing custom CCW skills.
- Added an index document (`index.md`) summarizing all built-in skills, their categories, and usage examples.
- Introduced a reference guide (`reference.md`) providing a quick reference for all 33 built-in CCW skills, including triggers and purposes.

docs/.vitepress/demos/ComponentGalleryZh.tsx

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+/**
+ * 组件库展示演示 (中文版)
+ * 所有 UI 组件的交互式展示
+ */
+import React, { useState } from 'react'
+
+export default function ComponentGalleryZh() {
+  const [selectedCategory, setSelectedCategory] = useState('all')
+  const [buttonVariant, setButtonVariant] = useState('default')
+  const [switchState, setSwitchState] = useState(false)
+  const [checkboxState, setCheckboxState] = useState(false)
+  const [selectedTab, setSelectedTab] = useState('variants')
+
+  const categories = [
+    { id: 'all', label: '全部组件' },
+    { id: 'buttons', label: '按钮' },
+    { id: 'forms', label: '表单' },
+    { id: 'feedback', label: '反馈' },
+    { id: 'navigation', label: '导航' },
+    { id: 'overlays', label: '叠加层' },
+  ]
+
+  const buttonVariants = ['default', 'destructive', 'outline', 'secondary', 'ghost', 'link']
+
+  return (
+    <div className="p-6 bg-background space-y-8">
+      {/* 标题 */}
+      <div>
+        <h1 className="text-2xl font-bold">UI 组件库</h1>
+        <p className="text-muted-foreground">所有可用 UI 组件的交互式展示</p>
+      </div>
+
+      {/* 分类筛选 */}
+      <div className="flex flex-wrap gap-2">
+        {categories.map((cat) => (
+          <button
+            key={cat.id}
+            onClick={() => setSelectedCategory(cat.id)}
+            className={`px-4 py-2 rounded-md text-sm transition-colors ${
+              selectedCategory === cat.id
+                ? 'bg-primary text-primary-foreground'
+                : 'border hover:bg-accent'
+            }`}
+          >
+            {cat.label}
+          </button>
+        ))}
+      </div>
+
+      {/* 按钮部分 */}
+      {(selectedCategory === 'all' || selectedCategory === 'buttons') && (
+        <section className="space-y-4">
+          <h2 className="text-lg font-semibold">按钮</h2>
+          <div className="space-y-6">
+            {/* 变体选择器 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">变体</label>
+              <div className="flex flex-wrap gap-2">
+                {buttonVariants.map((variant) => (
+                  <button
+                    key={variant}
+                    onClick={() => setButtonVariant(variant)}
+                    className={`px-4 py-2 rounded-md text-sm capitalize transition-colors ${
+                      buttonVariant === variant
+                        ? 'bg-primary text-primary-foreground ring-2 ring-ring'
+                        : 'border hover:bg-accent'
+                    }`}
+                  >
+                    {variant}
+                  </button>
+                ))}
+              </div>
+            </div>
+
+            {/* 按钮尺寸 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">尺寸</label>
+              <div className="flex items-center gap-3 flex-wrap">
+                <button className={`h-8 rounded-md px-3 text-sm ${buttonVariant === 'default' ? 'bg-primary text-primary-foreground' : 'border'}`}>
+                  小
+                </button>
+                <button className={`h-10 px-4 py-2 rounded-md text-sm ${buttonVariant === 'default' ? 'bg-primary text-primary-foreground' : 'border'}`}>
+                  默认
+                </button>
+                <button className={`h-11 rounded-md px-8 text-sm ${buttonVariant === 'default' ? 'bg-primary text-primary-foreground' : 'border'}`}>
+                  大
+                </button>
+                <button className={`h-10 w-10 rounded-md flex items-center justify-center ${buttonVariant === 'default' ? 'bg-primary text-primary-foreground' : 'border'}`}>
+                  ⚙
+                </button>
+              </div>
+            </div>
+
+            {/* 所有按钮变体 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">所有变体</label>
+              <div className="flex flex-wrap gap-3 p-4 border rounded-lg bg-muted/20">
+                <button className="px-4 py-2 rounded-md text-sm bg-primary text-primary-foreground hover:opacity-90">默认</button>
+                <button className="px-4 py-2 rounded-md text-sm bg-destructive text-destructive-foreground hover:opacity-90">危险</button>
+                <button className="px-4 py-2 rounded-md text-sm border bg-background hover:bg-accent">轮廓</button>
+                <button className="px-4 py-2 rounded-md text-sm bg-secondary text-secondary-foreground hover:opacity-80">次要</button>
+                <button className="px-4 py-2 rounded-md text-sm hover:bg-accent">幽灵</button>
+                <button className="px-4 py-2 rounded-md text-sm text-primary underline-offset-4 hover:underline">链接</button>
+                <button className="px-4 py-2 rounded-md text-sm bg-gradient-to-r from-blue-500 to-purple-500 text-white hover:opacity-90">渐变</button>
+              </div>
+            </div>
+          </div>
+        </section>
+      )}
+
+      {/* 表单部分 */}
+      {(selectedCategory === 'all' || selectedCategory === 'forms') && (
+        <section className="space-y-4">
+          <h2 className="text-lg font-semibold">表单组件</h2>
+          <div className="grid md:grid-cols-2 gap-6">
+            {/* 输入框 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">输入框</label>
+              <input
+                type="text"
+                placeholder="输入文本..."
+                className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-ring"
+              />
+              <input
+                type="text"
+                placeholder="错误状态"
+                className="flex h-10 w-full rounded-md border border-destructive bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-destructive"
+              />
+            </div>
+
+            {/* 文本域 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">文本域</label>
+              <textarea
+                placeholder="输入多行文本..."
+                className="flex min-h-[80px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-ring"
+              />
+            </div>
+
+            {/* 复选框 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">复选框</label>
+              <div className="space-y-2">
+                <label className="flex items-center gap-2 text-sm cursor-pointer">
+                  <input type="checkbox" className="h-4 w-4 rounded border border-primary" checked={checkboxState} onChange={(e) => setCheckboxState(e.target.checked)} />
+                  <span>接受条款和条件</span>
+                </label>
+                <label className="flex items-center gap-2 text-sm cursor-pointer opacity-50">
+                  <input type="checkbox" className="h-4 w-4 rounded border border-primary" />
+                  <span>订阅新闻通讯</span>
+                </label>
+              </div>
+            </div>
+
+            {/* 开关 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">开关</label>
+              <div className="space-y-3">
+                <label className="flex items-center gap-3 cursor-pointer">
+                  <div className="relative">
+                    <input type="checkbox" className="sr-only peer" checked={switchState} onChange={(e) => setSwitchState(e.target.checked)} />
+                    <div className="w-9 h-5 bg-input rounded-full peer peer-focus:ring-2 peer-focus:ring-ring peer-checked:bg-primary after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-background after:rounded-full after:h-4 after:w-4 after:transition-all peer-checked:after:translate-x-full" />
+                  </div>
+                  <span className="text-sm">启用通知 {switchState ? '(开)' : '(关)'}</span>
+                </label>
+              </div>
+            </div>
+
+            {/* 选择器 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">选择器</label>
+              <select className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-ring">
+                <option value="">选择一个选项</option>
+                <option value="1">选项 1</option>
+                <option value="2">选项 2</option>
+                <option value="3">选项 3</option>
+              </select>
+            </div>
+
+            {/* 表单操作 */}
+            <div className="space-y-3">
+              <label className="text-sm font-medium">表单操作</label>
+              <div className="flex gap-2">
+                <button className="px-4 py-2 rounded-md text-sm bg-primary text-primary-foreground hover:opacity-90">提交</button>
+                <button className="px-4 py-2 rounded-md text-sm border hover:bg-accent">取消</button>
+              </div>
+            </div>
+          </div>
+        </section>
+      )}
+
+      {/* 反馈部分 */}
+      {(selectedCategory === 'all' || selectedCategory === 'feedback') && (
+        <section className="space-y-4">
+          <h2 className="text-lg font-semibold">反馈组件</h2>
+
+          {/* 徽标 */}
+          <div className="space-y-3">
+            <label className="text-sm font-medium">徽标</label>
+            <div className="flex flex-wrap gap-2">
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold bg-primary text-primary-foreground">默认</span>
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold bg-secondary text-secondary-foreground">次要</span>
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold bg-destructive text-destructive-foreground">危险</span>
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold bg-success text-white">成功</span>
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold bg-warning text-white">警告</span>
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold bg-info text-white">信息</span>
+              <span className="inline-flex items-center rounded-full border px-2.5 py-0.5 text-xs font-semibold text-foreground">轮廓</span>
+            </div>
+          </div>
+
+          {/* 进度条 */}
+          <div className="space-y-3">
+            <label className="text-sm font-medium">进度条</label>
+            <div className="space-y-3 max-w-md">
+              <div>
+                <div className="flex justify-between text-xs mb-1">
+                  <span>处理中...</span>
+                  <span>65%</span>
+                </div>
+                <div className="h-2 bg-muted rounded-full overflow-hidden">
+                  <div className="h-full bg-primary rounded-full transition-all" style={{ width: '65%' }}/>
+                </div>
+              </div>
+              <div>
+                <div className="flex justify-between text-xs mb-1">
+                  <span>上传中...</span>
+                  <span>30%</span>
+                </div>
+                <div className="h-2 bg-muted rounded-full overflow-hidden">
+                  <div className="h-full bg-blue-500 rounded-full transition-all" style={{ width: '30%' }}/>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          {/* 提示 */}
+          <div className="space-y-3">
+            <label className="text-sm font-medium">提示</label>
+            <div className="space-y-3">
+              <div className="flex items-start gap-3 p-4 border rounded-lg bg-destructive/10 border-destructive/20 text-destructive">
+                <span className="text-lg">⚠</span>
+                <div className="flex-1">
+                  <div className="font-medium text-sm">发生错误</div>
+                  <div className="text-xs mt-1 opacity-80">出错了，请重试。</div>
+                </div>
+              </div>
+              <div className="flex items-start gap-3 p-4 border rounded-lg bg-success/10 border-success/20 text-success">
+                <span className="text-lg">✓</span>
+                <div className="flex-1">
+                  <div className="font-medium text-sm">成功！</div>
+                  <div className="text-xs mt-1 opacity-80">您的更改已保存。</div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </section>
+      )}
+
+      {/* 导航部分 */}
+      {(selectedCategory === 'all' || selectedCategory === 'navigation') && (
+        <section className="space-y-4">
+          <h2 className="text-lg font-semibold">导航组件</h2>
+
+          {/* 标签页 */}
+          <div className="space-y-3">
+            <label className="text-sm font-medium">标签页</label>
+            <div className="border-b">
+              <div className="flex gap-4">
+                {['概览', '文档', 'API 参考', '示例'].map((tab) => (
+                  <button
+                    key={tab}
+                    onClick={() => setSelectedTab(tab.toLowerCase().replace(' ', '-'))}
+                    className={`pb-3 px-1 text-sm border-b-2 transition-colors ${
+                      selectedTab === tab.toLowerCase().replace(' ', '-')
+                        ? 'border-primary text-primary'
+                        : 'border-transparent text-muted-foreground hover:text-foreground'
+                    }`}
+                  >
+                    {tab}
+                  </button>
+                ))}
+              </div>
+            </div>
+          </div>
+
+          {/* 面包屑 */}
+          <div className="space-y-3">
+            <label className="text-sm font-medium">面包屑</label>
+            <nav className="flex items-center gap-2 text-sm text-muted-foreground">
+              <a href="#" className="hover:text-foreground">首页</a>
+              <span>/</span>
+              <a href="#" className="hover:text-foreground">组件</a>
+              <span>/</span>
+              <span className="text-foreground">库</span>
+            </nav>
+          </div>
+        </section>
+      )}
+
+      {/* 叠加层部分 */}
+      {(selectedCategory === 'all' || selectedCategory === 'overlays') && (
+        <section className="space-y-4">
+          <h2 className="text-lg font-semibold">叠加层组件</h2>
+
+          <div className="grid md:grid-cols-3 gap-4 text-sm">
+            <div className="p-4 border rounded-lg">
+              <h3 className="font-medium mb-2">对话框</h3>
+              <p className="text-muted-foreground text-xs">用于专注用户交互的模态对话框。</p>
+              <button className="mt-3 px-3 py-1.5 text-xs bg-primary text-primary-foreground rounded">打开对话框</button>
+            </div>
+            <div className="p-4 border rounded-lg">
+              <h3 className="font-medium mb-2">抽屉</h3>
+              <p className="text-muted-foreground text-xs">从屏幕边缘滑入的侧边面板。</p>
+              <button className="mt-3 px-3 py-1.5 text-xs border rounded hover:bg-accent">打开抽屉</button>
+            </div>
+            <div className="p-4 border rounded-lg">
+              <h3 className="font-medium mb-2">下拉菜单</h3>
+              <p className="text-muted-foreground text-xs">上下文菜单和操作列表。</p>
+              <button className="mt-3 px-3 py-1.5 text-xs border rounded hover:bg-accent">▼ 打开菜单</button>
+            </div>
+          </div>
+        </section>
+      )}
+    </div>
+  )
+}