docs: update README with Claude Code mode documentation

Add comprehensive documentation for Claude Code mode in both Chinese and English:

- Added claudeCodeMode configuration field description
- Explained Claude Code mode behavior and features
- Added configuration examples for both languages
- Documented OAuth token authentication support
- Explained automatic system prompt and Bash tool injection

plugins/wasm-go/extensions/ai-proxy/README.md

@@ -224,6 +224,18 @@ Anthropic Claude 所对应的 `type` 为 `claude`。它特有的配置字段如
 | 名称            | 数据类型 | 填写要求 | 默认值 | 描述                                      |
 | --------------- | -------- | -------- | ------ | ----------------------------------------- |
 | `claudeVersion` | string   | 可选     | -      | Claude 服务的 API 版本，默认为 2023-06-01 |
+| `claudeCodeMode` | boolean | 可选     | false  | 启用 Claude Code 模式，用于支持 Claude Code OAuth 令牌认证。启用后将伪装成 Claude Code 客户端发起请求 |
+
+**Claude Code 模式说明**
+
+启用 `claudeCodeMode: true` 时，插件将：
+- 使用 Bearer Token 认证替代 x-api-key（适配 Claude Code OAuth 令牌）
+- 设置 Claude Code 特定的请求头（user-agent、x-app、anthropic-beta）
+- 为请求 URL 添加 `?beta=true` 查询参数
+- 自动注入 Claude Code 的系统提示词（如未提供）
+- 自动注入 Bash 工具定义（如未提供）
+
+这允许在 Higress 中直接使用 Claude Code 的 OAuth Token 进行身份验证。
 
 #### Ollama
 
@@ -1211,6 +1223,45 @@ URL: `http://your-domain/v1/messages`
 }
 ```
 
+### 使用 Claude Code 模式
+
+Claude Code 是 Anthropic 提供的官方 CLI 工具。通过启用 `claudeCodeMode`，可以使用 Claude Code 的 OAuth Token 进行身份验证：
+
+**配置信息**
+
+```yaml
+provider:
+  type: claude
+  apiTokens:
+    - 'sk-ant-oat01-xxxxx'  # Claude Code OAuth Token
+  claudeCodeMode: true  # 启用 Claude Code 模式
+```
+
+启用此模式后，插件将自动：
+- 使用 Bearer Token 认证（而非 x-api-key）
+- 设置 Claude Code 特定的请求头和查询参数
+- 注入 Claude Code 的系统提示词和 Bash 工具（如未提供）
+
+**请求示例**
+
+```json
+{
+  "model": "claude-sonnet-4-5-20250929",
+  "max_tokens": 8192,
+  "messages": [
+    {
+      "role": "user",
+      "content": "List files in current directory"
+    }
+  ]
+}
+```
+
+插件将自动转换为适合 Claude Code 的请求格式，包括：
+- 添加系统提示词：`"You are Claude Code, Anthropic's official CLI for Claude."`
+- 添加 Bash 工具定义（用于执行命令）
+- 设置适当的认证和请求头
+
 ### 使用智能协议转换
 
 当目标供应商不原生支持 Claude 协议时，插件会自动进行协议转换：

plugins/wasm-go/extensions/ai-proxy/README_EN.md

@@ -185,11 +185,23 @@ For MiniMax, the corresponding `type` is `minimax`. Its unique configuration fie
 
 #### Anthropic Claude
 
-For Anthropic Claude, the corresponding `type` is `claude`. Its unique configuration field is:
+For Anthropic Claude, the corresponding `type` is `claude`. Its unique configuration fields are:
 
 | Name        | Data Type   | Filling Requirements | Default Value | Description                                                                                                    |
 |------------|-------------|----------------------|---------------|---------------------------------------------------------------------------------------------------------------|
 | `claudeVersion` | string | Optional             | -             | The version of the Claude service's API, default is 2023-06-01.                                               |
+| `claudeCodeMode` | boolean | Optional             | false         | Enable Claude Code mode for OAuth token authentication. When enabled, requests will be formatted as Claude Code client requests. |
+
+**Claude Code Mode**
+
+When `claudeCodeMode: true` is enabled, the plugin will:
+- Use Bearer Token authentication instead of x-api-key (compatible with Claude Code OAuth tokens)
+- Set Claude Code-specific request headers (user-agent, x-app, anthropic-beta)
+- Add `?beta=true` query parameter to request URLs
+- Automatically inject Claude Code system prompt if not provided
+- Automatically inject Bash tool definition if not provided
+
+This enables direct use of Claude Code OAuth tokens for authentication in Higress.
 
 #### Ollama
 
@@ -1148,6 +1160,45 @@ Both protocol formats will return responses in their respective formats:
 }
 ```
 
+### Using Claude Code Mode
+
+Claude Code is Anthropic's official CLI tool. By enabling `claudeCodeMode`, you can authenticate using Claude Code OAuth tokens:
+
+**Configuration Information**
+
+```yaml
+provider:
+  type: claude
+  apiTokens:
+    - "sk-ant-oat01-xxxxx"  # Claude Code OAuth Token
+  claudeCodeMode: true  # Enable Claude Code mode
+```
+
+Once this mode is enabled, the plugin will automatically:
+- Use Bearer Token authentication (instead of x-api-key)
+- Set Claude Code-specific request headers and query parameters
+- Inject Claude Code system prompt and Bash tool definitions if not provided
+
+**Request Example**
+
+```json
+{
+  "model": "claude-sonnet-4-5-20250929",
+  "max_tokens": 8192,
+  "messages": [
+    {
+      "role": "user",
+      "content": "List files in current directory"
+    }
+  ]
+}
+```
+
+The plugin will automatically transform the request into Claude Code format, including:
+- Adding system prompt: `"You are Claude Code, Anthropic's official CLI for Claude."`
+- Adding Bash tool definition (for command execution)
+- Setting appropriate authentication and request headers
+
 ### Using Intelligent Protocol Conversion
 
 When the target provider doesn't natively support Claude protocol, the plugin automatically performs protocol conversion: