Add FeiShuTools for enhanced messaging capabilities

- Introduced the FeiShuTools class to facilitate sending various message types (text, image, file, audio, media) through the Feishu platform.
- Updated README files to include new methods and usage instructions for FeiShuTools, enhancing user guidance for integration.
- Refactored existing code to utilize FeiShuTools, improving modularity and maintainability of the messaging functionality.

Author: InfernalAzazel

README-zh_CN.md

@@ -286,6 +286,7 @@ OpenFox 从 **`~/.openfox/config.json`** 读取 JSON 配置，字段对应 `open
 |--------|------|
 | **ShellTools** | 在运行 OpenFox 的机器上执行 Shell 命令（Agno） |
 | **SchedulerTools** | 当 `tools.scheduler.activate` 为 true 时注册。创建 / 列出 / 获取 / 删除 / 禁用定时任务；Cron 表达式触发对本 Agent 运行端点的回调 |
+| **FeiShuTools** | 飞书消息发送工具：`send_text_message`、`send_image_message`、`send_file_message`、`send_audio_message`、`send_media_message` |
 | **MCPConfigTools** | 在对话中增删改 MCP 相关配置声明，便于动态扩展工具 |
 | **WebSearchTools** | 联网搜索网页信息 |
 | **ArxivTools** | 检索 [arXiv](https://arxiv.org/) 论文与元数据 |
@@ -338,6 +339,14 @@ python -m openfox
 3. 将上述信息写入 `~/.openfox/config.json` 的 `channels.feishu`，重启 `python -m openfox`。
 4. 在飞书单聊或群聊中使用应用能力（如 @ 机器人）与 OpenFox 对话。
 
+FeiShuTools 可用方法（对话工具）：
+
+- `send_text_message`：发送纯文本或 markdown 卡片文本。
+- `send_image_message`：通过 `image_key` 或 URL/路径上传后发送图片。
+- `send_file_message`：通过 `file_key` 或 URL/路径上传后发送文件。
+- `send_audio_message`：上传并发送 OPUS 语音。
+- `send_media_message`：上传并发送 MP4 视频，可选缩略图。
+
 ---
 
 ## 模型（LiteLLM）

README.md

@@ -286,6 +286,7 @@ You can edit the live file in the Web **Config** page or via the **expand/config
 |------------|----------------|
 | **ShellTools** | Run shell commands on the host where OpenFox runs (Agno) |
 | **SchedulerTools** | Registered when `tools.scheduler.activate` is true. Create / list / get / delete / disable jobs; cron expressions invoke this Agent's run endpoint |
+| **FeiShuTools** | Feishu outbound messaging toolkit: `send_text_message`, `send_image_message`, `send_file_message`, `send_audio_message`, `send_media_message` |
 | **MCPConfigTools** | Add / remove / update MCP-related config in chat to extend tools dynamically |
 | **WebSearchTools** | Search the web |
 | **ArxivTools** | Search [arXiv](https://arxiv.org/) papers and metadata |
@@ -338,6 +339,14 @@ Steps in brief:
 3. Write these into `channels.feishu` in `~/.openfox/config.json`, then restart `python -m openfox`.
 4. In Feishu DM or group chat, use the app (e.g. @ bot) to talk to OpenFox.
 
+FeiShuTools methods (chat tools):
+
+- `send_text_message`: send plain text or markdown card text.
+- `send_image_message`: send by `image_key` or upload from URL/path.
+- `send_file_message`: send by `file_key` or upload from URL/path.
+- `send_audio_message`: upload/send OPUS audio.
+- `send_media_message`: upload/send MP4 video, optional thumbnail.
+
 ---
 
 ## Models (LiteLLM)

openfox/channels/base.py

@@ -24,10 +24,6 @@ def __init__(
     def start(self):
         raise NotImplementedError
 
-    @abstractmethod
-    def send_message(self, receive_id: str, content: Any, msg_type: str = "text", **kwargs):
-        raise NotImplementedError
-
     @abstractmethod
     async def on_notify_scheduled(run_output: RunOutput, channel: Dict[str, Any]) -> None:
         raise NotImplementedError