feat: 添加按通道查询会话功能，优化会话列表处理

src/command/handlers/session_query.rs

@@ -49,9 +49,11 @@ async fn handle_list_sessions(
     include_archived: bool,
     ctx: CommandContext,
 ) -> Result<CommandResponse, CommandError> {
+    // 使用当前通道名称查询会话，而不是硬编码 "cli"
+    let channel_name = &ctx.channel_name;
     let records = handler
         .cli_sessions
-        .list(include_archived)
+        .list_by_channel(channel_name, include_archived)
         .map_err(|e| CommandError::new("LIST_SESSIONS_ERROR", e.to_string()))?;
 
     let summaries: Vec<SessionSummary> = records
@@ -131,7 +133,8 @@ mod tests {
     async fn test_list_sessions_empty() {
         let service = create_test_service();
         let handler = SessionQueryCommandHandler::new(service);
-        let ctx = CommandContext::new("test", "test");
+        // 使用 "cli" 通道，与 CliSessionService::create 一致
+        let ctx = CommandContext::new("test", "cli");
         let cmd = Command::ListSessions {
             include_archived: false,
         };
@@ -149,10 +152,11 @@ mod tests {
         let service = create_test_service();
         let handler = SessionQueryCommandHandler::new(service.clone());
 
-        // 创建一些会话
+        // 创建一些会话（使用 cli 通道）
         service.create(Some("test session")).unwrap();
 
-        let ctx = CommandContext::new("test", "test");
+        // 使用 "cli" 通道查询，与创建会话的通道一致
+        let ctx = CommandContext::new("test", "cli");
         let cmd = Command::ListSessions {
             include_archived: false,
         };

src/gateway/cli_session.rs

@@ -42,6 +42,17 @@ impl CliSessionService {
             .map_err(|err| AgentError::Other(format!("list sessions error: {}", err)))
     }
 
+    /// 列出指定通道的会话
+    pub(crate) fn list_by_channel(
+        &self,
+        channel_name: &str,
+        include_archived: bool,
+    ) -> Result<Vec<SessionRecord>, AgentError> {
+        self.store
+            .list_sessions(channel_name, include_archived)
+            .map_err(|err| AgentError::Other(format!("list sessions error: {}", err)))
+    }
+
     pub(crate) fn rename(&self, session_id: &str, title: &str) -> Result<(), AgentError> {
         self.store
             .rename_session(session_id, title)