为飞书渠道添加斜杠命令支持

重写 FeishuChannel 的 handle_and_publish 方法，在发布消息前
检查是否为斜杠命令。如果是，则通过控制平面执行命令并返回结果。

src/channels/feishu.rs

@@ -12,7 +12,9 @@ use tokio::sync::{broadcast, RwLock};
 
 use crate::bus::{MessageBus, MediaItem, OutboundMessage};
 use crate::channels::base::{Channel, ChannelError};
+use crate::channels::slash_command::parse_slash_command;
 use crate::config::FeishuChannelConfig;
+use crate::session::{SessionCommand, SessionEvent};
 
 const FEISHU_API_BASE: &str = "https://open.feishu.cn/open-apis";
 const FEISHU_WS_BASE: &str = "https://open.feishu.cn";
@@ -1995,6 +1997,84 @@ impl Channel for FeishuChannel {
         "feishu"
     }
 
+    /// Handle an inbound message: check for slash commands first, then publish to bus
+    async fn handle_and_publish(
+        &self,
+        bus: &Arc<MessageBus>,
+        msg: &crate::bus::InboundMessage,
+    ) -> Result<(), ChannelError> {
+        use tokio::sync::mpsc;
+
+        if !self.is_allowed(&msg.sender_id) {
+            tracing::warn!(
+                channel = %self.name(),
+                sender = %msg.sender_id,
+                "Access denied"
+            );
+            return Ok(());
+        }
+
+        // Check for slash command
+        if let Some((cmd_name, cmd_args)) = parse_slash_command(&msg.content) {
+            tracing::info!(cmd = %cmd_name, "Feishu slash command detected");
+            let (reply_tx, mut reply_rx) = mpsc::channel(1);
+            bus.publish_control(crate::bus::ControlMessage {
+                op: SessionCommand::ExecuteSlashCommand {
+                    command: cmd_name.to_string(),
+                    args: if cmd_args.is_empty() { None } else { Some(cmd_args.to_string()) },
+                    channel: msg.channel.clone(),
+                    chat_id: msg.chat_id.clone(),
+                    current_session_id: None,
+                },
+                reply_tx,
+            }).await?;
+
+            // Handle response
+            if let Some(result) = reply_rx.recv().await {
+                match result {
+                    Ok(SessionEvent::SlashCommandExecuted { message, .. }) => {
+                        let outbound = crate::bus::OutboundMessage {
+                            channel: msg.channel.clone(),
+                            chat_id: msg.chat_id.clone(),
+                            content: message,
+                            reply_to: None,
+                            media: vec![],
+                            metadata: msg.forwarded_metadata.clone(),
+                        };
+                        bus.publish_outbound(outbound).await?;
+                    }
+                    Ok(SessionEvent::Error { message, .. }) => {
+                        let outbound = crate::bus::OutboundMessage {
+                            channel: msg.channel.clone(),
+                            chat_id: msg.chat_id.clone(),
+                            content: message,
+                            reply_to: None,
+                            media: vec![],
+                            metadata: msg.forwarded_metadata.clone(),
+                        };
+                        bus.publish_outbound(outbound).await?;
+                    }
+                    Err(e) => {
+                        let outbound = crate::bus::OutboundMessage {
+                            channel: msg.channel.clone(),
+                            chat_id: msg.chat_id.clone(),
+                            content: format!("Error: {}", e),
+                            reply_to: None,
+                            media: vec![],
+                            metadata: msg.forwarded_metadata.clone(),
+                        };
+                        bus.publish_outbound(outbound).await?;
+                    }
+                    _ => {}
+                }
+            }
+            return Ok(());
+        }
+
+        bus.publish_inbound(msg.clone()).await?;
+        Ok(())
+    }
+
     async fn start(&self, bus: Arc<MessageBus>) -> Result<(), ChannelError> {
         if self.config.app_id.is_empty() || self.config.app_secret.is_empty() {
             return Err(ChannelError::ConfigError(