chore: update project structure and enhance plugin functionality

- Added new entries to .gitignore for database files.
- Updated go.mod and go.sum to include new indirect dependencies for database and ORM support.
- Refactored event handling to improve message reply functionality in the protocol.
- Enhanced the dispatcher to allow for better event processing and logging.
- Removed outdated plugin documentation and unnecessary files to streamline the codebase.
- Improved welcome message formatting and screenshot options for better user experience.

internal/protocol/event.go

@@ -1,19 +1,24 @@
 package protocol
 
-import "time"
+import (
+	"context"
+	"time"
+
+	"go.uber.org/zap"
+)
 
 // EventType 事件类型
 type EventType string
 
 const (
 	// 事件类型常量
-	EventTypeMessage          EventType = "message"
-	EventTypeNotice           EventType = "notice"
-	EventTypeRequest          EventType = "request"
-	EventTypeMeta             EventType = "meta"
-	EventTypeMessageSent      EventType = "message_sent"
-	EventTypeNoticeSent       EventType = "notice_sent"
-	EventTypeRequestSent      EventType = "request_sent"
+	EventTypeMessage     EventType = "message"
+	EventTypeNotice      EventType = "notice"
+	EventTypeRequest     EventType = "request"
+	EventTypeMeta        EventType = "meta"
+	EventTypeMessageSent EventType = "message_sent"
+	EventTypeNoticeSent  EventType = "notice_sent"
+	EventTypeRequestSent EventType = "request_sent"
 )
 
 // Event 通用事件接口
@@ -31,6 +36,10 @@ type Event interface {
 	GetSelfID() string
 	// GetData 获取事件数据
 	GetData() map[string]interface{}
+	// Reply 在消息发生的群/私聊进行回复
+	Reply(ctx context.Context, botManager *BotManager, logger *zap.Logger, message MessageChain) error
+	// ReplyText 在消息发生的群/私聊进行文本回复（便捷方法）
+	ReplyText(ctx context.Context, botManager *BotManager, logger *zap.Logger, text string) error
 }
 
 // BaseEvent 基础事件结构
@@ -73,6 +82,70 @@ func (e *BaseEvent) GetData() map[string]interface{} {
 	return e.Data
 }
 
+// Reply 在消息发生的群/私聊进行回复
+func (e *BaseEvent) Reply(ctx context.Context, botManager *BotManager, logger *zap.Logger, message MessageChain) error {
+	data := e.GetData()
+	userID, _ := data["user_id"]
+	groupID, _ := data["group_id"]
+
+	// 获取 bot 实例
+	selfID := e.GetSelfID()
+	bot, ok := botManager.Get(selfID)
+	if !ok {
+		bots := botManager.GetAll()
+		if len(bots) == 0 {
+			logger.Error("No bot instance available")
+			return nil
+		}
+		bot = bots[0]
+	}
+
+	// 根据消息类型发送回复
+	var action *BaseAction
+	if e.GetDetailType() == "private" {
+		action = &BaseAction{
+			Type: ActionTypeSendPrivateMessage,
+			Params: map[string]interface{}{
+				"user_id": userID,
+				"message": message,
+			},
+		}
+	} else {
+		// 群聊或其他有 group_id 的事件
+		action = &BaseAction{
+			Type: ActionTypeSendGroupMessage,
+			Params: map[string]interface{}{
+				"group_id": groupID,
+				"message":  message,
+			},
+		}
+	}
+
+	_, err := bot.SendAction(ctx, action)
+	if err != nil {
+		logger.Error("Failed to send reply",
+			zap.Any("user_id", userID),
+			zap.Any("group_id", groupID),
+			zap.String("detail_type", e.GetDetailType()),
+			zap.Error(err))
+		return err
+	}
+
+	logger.Debug("Reply sent",
+		zap.Any("user_id", userID),
+		zap.Any("group_id", groupID),
+		zap.String("detail_type", e.GetDetailType()))
+	return nil
+}
+
+// ReplyText 在消息发生的群/私聊进行文本回复（便捷方法）
+func (e *BaseEvent) ReplyText(ctx context.Context, botManager *BotManager, logger *zap.Logger, text string) error {
+	message := NewMessageChain(
+		NewTextSegment(text),
+	)
+	return e.Reply(ctx, botManager, logger, message)
+}
+
 // MessageEvent 消息事件
 type MessageEvent struct {
 	BaseEvent