docs: add VitePress documentation site

- Add docs directory with VitePress configuration
- Add GitHub Actions workflow for docs build and deploy
- Support bilingual (English/Chinese) documentation
- Include search, custom theme, and responsive design

docs/zh/commands/codex/prep.md

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+# Prep 提示
+
+## 一句话定位
+
+**Prep 提示是项目上下文准备的标准化模板** — 通过代理驱动分析生成结构化项目核心内容包。
+
+## 核心内容包结构
+
+```json
+{
+  "task_context": "任务上下文描述",
+  "keywords": ["关键词1", "关键词2"],
+  "project_summary": {
+    "architecture": "架构描述",
+    "tech_stack": ["技术1", "技术2"],
+    "key_patterns": ["模式1", "模式2"]
+  },
+  "relevant_files": [
+    {
+      "path": "文件路径",
+      "relevance": "相关性说明",
+      "priority": "high|medium|low"
+    }
+  ],
+  "integration_points": [
+    "集成点1",
+    "集成点2"
+  ],
+  "constraints": [
+    "约束1",
+    "约束2"
+  ]
+}
+```
+
+## memory:prepare
+
+**功能**: 委托给 universal-executor 代理，通过 Gemini/Qwen CLI 分析项目并返回 JSON 核心内容包用于任务上下文。
+
+**语法**:
+```
+/memory:prepare [--tool gemini|qwen] "任务上下文描述"
+```
+
+**选项**:
+- `--tool=工具`: 指定 CLI 工具（默认：gemini）
+  - `gemini`: 大上下文窗口，适合复杂项目分析
+  - `qwen`: Gemini 的替代方案，具有相似能力
+
+**执行流程**:
+
+```mermaid
+graph TD
+    A[开始] --> B[分析项目结构]
+    B --> C[加载文档]
+    C --> D[提取关键词]
+    D --> E[发现文件]
+    E --> F[CLI 深度分析]
+    F --> G[生成内容包]
+    G --> H[加载到主线程记忆]
+```
+
+**代理调用提示**:
+```
+## Mission: Prepare Project Memory Context
+
+**Task**: Prepare project memory context for: "{task_description}"
+**Mode**: analysis
+**Tool Preference**: {tool}
+
+### Step 1: Foundation Analysis
+1. Project Structure: get_modules_by_depth.sh
+2. Core Documentation: CLAUDE.md, README.md
+
+### Step 2: Keyword Extraction & File Discovery
+1. Extract core keywords from task description
+2. Discover relevant files using ripgrep and find
+
+### Step 3: Deep Analysis via CLI
+Execute Gemini/Qwen CLI for deep analysis
+
+### Step 4: Generate Core Content Package
+Return structured JSON with required fields
+
+### Step 5: Return Content Package
+Load JSON into main thread memory
+```
+
+**示例**:
+
+```bash
+# 基础用法
+/memory:prepare "在当前前端基础上开发用户认证功能"
+
+# 指定工具
+/memory:prepare --tool qwen "重构支付模块API"
+
+# Bug 修复上下文
+/memory:prepare "修复登录验证错误"
+```
+
+**返回的内容包**:
+
+```json
+{
+  "task_context": "在当前前端基础上开发用户认证功能",
+  "keywords": ["前端", "用户", "认证", "auth", "login"],
+  "project_summary": {
+    "architecture": "TypeScript + React 前端，Vite 构建系统",
+    "tech_stack": ["React", "TypeScript", "Vite", "TailwindCSS"],
+    "key_patterns": [
+      "通过 Context API 进行状态管理",
+      "使用 Hooks 的函数组件模式",
+      "API 调用封装在自定义 hooks 中"
+    ]
+  },
+  "relevant_files": [
+    {
+      "path": "src/components/Auth/LoginForm.tsx",
+      "relevance": "现有登录表单组件",
+      "priority": "high"
+    },
+    {
+      "path": "src/contexts/AuthContext.tsx",
+      "relevance": "认证状态管理上下文",
+      "priority": "high"
+    },
+    {
+      "path": "CLAUDE.md",
+      "relevance": "项目开发标准",
+      "priority": "high"
+    }
+  ],
+  "integration_points": [
+    "必须与现有 AuthContext 集成",
+    "遵循组件组织模式: src/components/[Feature]/",
+    "API 调用应使用 src/hooks/useApi.ts 包装器"
+  ],
+  "constraints": [
+    "保持向后兼容",
+    "遵循 TypeScript 严格模式",
+    "使用现有 UI 组件库"
+  ]
+}
+```
+
+## 质量检查清单
+
+生成内容包前验证：
+- [ ] 有效的 JSON 格式
+- [ ] 所有必需字段完整
+- [ ] relevant_files 包含最少 3-10 个文件
+- [ ] project_summary 准确反映架构
+- [ ] integration_points 清晰指定集成路径
+- [ ] keywords 准确提取（3-8 个关键词）
+- [ ] 内容简洁，避免冗余（< 5KB 总计）
+
+## 记忆持久化
+
+- **会话范围**: 内容包在当前会话有效
+- **后续引用**: 所有后续代理/命令都可以访问
+- **重新加载需要**: 新会话需要重新执行 `/memory:prepare`
+
+## 相关文档
+
+- [Memory 命令](../claude/memory.md)
+- [Review 提示](./review.md)
+- [CLI 调用系统](../../features/cli.md)