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- Removed outdated plugin documentation and unnecessary files to streamline the codebase.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/plugins/mcstatus/ping.go

@@ -0,0 +1,141 @@
+package mcstatus
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+
+	mcnet "github.com/Tnze/go-mc/net"
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
+// ServerStatus 服务器状态信息
+type ServerStatus struct {
+	Host        string
+	Port        int
+	Latency     int64 // 延迟（毫秒）
+	Version     Version
+	Players     Players
+	Description string // MOTD
+	Favicon     string // Base64 编码的图标
+}
+
+// Version 版本信息
+type Version struct {
+	Name     string
+	Protocol int
+}
+
+// Players 玩家信息
+type Players struct {
+	Online int
+	Max    int
+}
+
+// Ping 查询 Minecraft 服务器状态
+func Ping(host string, port int, timeout time.Duration) (*ServerStatus, error) {
+	// 连接服务器
+	startTime := time.Now()
+	conn, err := mcnet.DialMC(fmt.Sprintf("%s:%d", host, port))
+	if err != nil {
+		return nil, fmt.Errorf("failed to connect: %w", err)
+	}
+	defer conn.Close()
+
+	latency := time.Since(startTime).Milliseconds()
+
+	// 发送握手包
+	handshake := pk.Marshal(
+		0x00,          // Handshake packet ID
+		pk.VarInt(47), // Protocol version (1.8+)
+		pk.String(host),
+		pk.UnsignedShort(port),
+		pk.VarInt(1), // Next state: Status
+	)
+	if err := conn.WritePacket(handshake); err != nil {
+		return nil, fmt.Errorf("failed to send handshake: %w", err)
+	}
+
+	// 发送状态请求
+	request := pk.Marshal(0x00) // Status request packet ID
+	if err := conn.WritePacket(request); err != nil {
+		return nil, fmt.Errorf("failed to send status request: %w", err)
+	}
+
+	// 读取响应
+	var response pk.Packet
+	if err := conn.ReadPacket(&response); err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	// 解析响应
+	var statusJSON pk.String
+	if err := response.Scan(&statusJSON); err != nil {
+		return nil, fmt.Errorf("failed to parse response: %w", err)
+	}
+
+	// 解析 JSON 响应
+	var statusData map[string]interface{}
+	if err := json.Unmarshal([]byte(statusJSON), &statusData); err != nil {
+		return nil, fmt.Errorf("failed to parse JSON: %w", err)
+	}
+
+	status := &ServerStatus{
+		Host:    host,
+		Port:    port,
+		Latency: latency,
+	}
+
+	// 解析 description
+	if desc, ok := statusData["description"].(map[string]interface{}); ok {
+		if text, ok := desc["text"].(string); ok {
+			status.Description = text
+		} else if text, ok := desc["extra"].([]interface{}); ok && len(text) > 0 {
+			// 处理 extra 数组
+			var descText strings.Builder
+			for _, item := range text {
+				if itemMap, ok := item.(map[string]interface{}); ok {
+					if text, ok := itemMap["text"].(string); ok {
+						descText.WriteString(text)
+					}
+				}
+			}
+			status.Description = descText.String()
+		}
+	} else if desc, ok := statusData["description"].(string); ok {
+		status.Description = desc
+	}
+
+	// 解析 version
+	if version, ok := statusData["version"].(map[string]interface{}); ok {
+		if name, ok := version["name"].(string); ok {
+			status.Version.Name = name
+		}
+		if protocol, ok := version["protocol"].(float64); ok {
+			status.Version.Protocol = int(protocol)
+		}
+	}
+
+	// 解析 players
+	if players, ok := statusData["players"].(map[string]interface{}); ok {
+		if online, ok := players["online"].(float64); ok {
+			status.Players.Online = int(online)
+		}
+		if max, ok := players["max"].(float64); ok {
+			status.Players.Max = int(max)
+		}
+	}
+
+	// 解析 favicon
+	if favicon, ok := statusData["favicon"].(string); ok {
+		// 移除 data:image/png;base64, 前缀
+		if strings.HasPrefix(favicon, "data:image/png;base64,") {
+			status.Favicon = strings.TrimPrefix(favicon, "data:image/png;base64,")
+		} else {
+			status.Favicon = favicon
+		}
+	}
+
+	return status, nil
+}