feat: enhance event handling and add scheduling capabilities

- Introduced a new scheduler to manage timed tasks within the event dispatcher.
- Updated the dispatcher to support the new scheduler, allowing for improved event processing.
- Enhanced action serialization in the OneBot11 adapter to convert message chains to the appropriate format.
- Added new dependencies for cron scheduling and other indirect packages in go.mod and go.sum.
- Improved logging for event publishing and handler matching, providing better insights during execution.
- Refactored plugin loading to include scheduled job management.

internal/plugins/echo/echo_new.go

@@ -12,8 +12,9 @@ import (
 func init() {
 	// 在 init 函数中注册多个处理函数（类似 ZeroBot 风格）
 
-	// 处理私聊消息
+	// 处理私聊消息（使用 OnlyPrivate 中间件，虽然 OnPrivateMessage 已经匹配私聊，这里作为示例）
 	engine.OnPrivateMessage().
+		Use(engine.OnlyPrivate()). // 只在私聊中响应
 		Handle(func(ctx context.Context, event protocol.Event, botManager *protocol.BotManager, logger *zap.Logger) error {
 			// 获取消息内容
 			data := event.GetData()