feat(skills): add channel commands to list and force installed skills

docs/channels/telegram/README.md

@@ -33,3 +33,23 @@ The Telegram channel uses long polling via the Telegram Bot API for bot-based co
 3. Obtain the HTTP API Token
 4. Fill in the Token in the configuration file
 5. (Optional) Configure `allow_from` to restrict which user IDs can interact (you can get IDs via `@userinfobot`)
+
+## Built-in Commands
+
+Telegram auto-registers PicoClaw's top-level bot commands at startup, including `/start`, `/help`, `/show`, `/list`, and `/use`.
+
+Skill-related commands:
+
+- `/list skills` lists the installed skills visible to the current agent.
+- `/use <skill> <message>` forces a skill for a single request.
+- `/use <skill>` arms the skill for your next message in the same chat.
+- `/use clear` clears a pending skill override.
+
+Examples:
+
+```text
+/list skills
+/use git explain how to squash the last 3 commits
+/use git
+explain how to squash the last 3 commits
+```

docs/channels/telegram/README.zh.md

@@ -33,3 +33,23 @@ Telegram Channel 通过 Telegram 机器人 API 使用长轮询实现基于机器
 3. 获取 HTTP API Token
 4. 将 Token 填入配置文件中
 5. (可选) 配置 `allow_from` 以限制允许互动的用户 ID (可通过 `@userinfobot` 获取 ID)
+
+## 内置命令
+
+Telegram 会在启动时自动注册 PicoClaw 的顶级 Bot 命令，包括 `/start`、`/help`、`/show`、`/list` 和 `/use`。
+
+与技能相关的命令：
+
+- `/list skills`：列出当前 Agent 可见的已安装技能。
+- `/use <skill> <message>`：只在本次请求中强制使用指定技能。
+- `/use <skill>`：为同一聊天中的下一条消息预先启用该技能。
+- `/use clear`：清除待应用的技能覆盖。
+
+示例：
+
+```text
+/list skills
+/use git explain how to squash the last 3 commits
+/use italiapersonalfinance
+dammi le ultime news
+```