DNF90 服务端与启动器完整源码（含 GM 工具功能增强）

服务端（Go）：
- GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面
- GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新
- 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新）
- 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍
- 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0）
- 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算

启动器（Python/JS）：
- 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭
- GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐）
- 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错

server/internal/services/asyncpayload/clone.go

@@ -0,0 +1,148 @@
+// Package asyncpayload 提供服务异步发布边界的 payload 快照工具。
+package asyncpayload
+
+import "longheng.io/server/pkg/contracts"
+
+// Clone 在异步队列入队、取批和失败归还时复制已知可变字段，避免后续修改污染待发布事件。
+func Clone(payload any) any {
+	switch value := payload.(type) {
+	case []byte:
+		return cloneBytes(value)
+	case []string:
+		return cloneStrings(value)
+	case []any:
+		return cloneAnySlice(value)
+	case map[string]string:
+		return cloneStringMap(value)
+	case map[string]any:
+		return cloneAnyMap(value)
+	case contracts.GatewayClientPacket:
+		value.Body = cloneBytes(value.Body)
+		value.Metadata = cloneStringMap(value.Metadata)
+		return value
+	case *contracts.GatewayClientPacket:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.GatewayClientPacket)
+		return &cloned
+	case contracts.LogicPlayerResponse:
+		value.Body = cloneBytes(value.Body)
+		value.Metadata = cloneStringMap(value.Metadata)
+		return value
+	case *contracts.LogicPlayerResponse:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.LogicPlayerResponse)
+		return &cloned
+	case contracts.GatewayPush:
+		value.Body = cloneBytes(value.Body)
+		value.Metadata = cloneStringMap(value.Metadata)
+		return value
+	case *contracts.GatewayPush:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.GatewayPush)
+		return &cloned
+	case contracts.ClusterServiceEvent:
+		value.Meta = cloneStringMap(value.Meta)
+		return value
+	case *contracts.ClusterServiceEvent:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.ClusterServiceEvent)
+		return &cloned
+	case contracts.ChatBroadcast:
+		value.Metadata = cloneStringMap(value.Metadata)
+		return value
+	case *contracts.ChatBroadcast:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.ChatBroadcast)
+		return &cloned
+	case contracts.NoticePublished:
+		value.Recipients = cloneStrings(value.Recipients)
+		value.DeliveryIDs = cloneStrings(value.DeliveryIDs)
+		value.Meta = cloneStringMap(value.Meta)
+		return value
+	case *contracts.NoticePublished:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.NoticePublished)
+		return &cloned
+	case contracts.RPCRequest:
+		value.Metadata = cloneStringMap(value.Metadata)
+		value.Payload = cloneBytes(value.Payload)
+		return value
+	case *contracts.RPCRequest:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.RPCRequest)
+		return &cloned
+	case contracts.RPCResponse:
+		value.Metadata = cloneStringMap(value.Metadata)
+		value.Payload = cloneBytes(value.Payload)
+		return value
+	case *contracts.RPCResponse:
+		if value == nil {
+			return value
+		}
+		cloned := Clone(*value).(contracts.RPCResponse)
+		return &cloned
+	default:
+		return payload
+	}
+}
+
+func cloneBytes(in []byte) []byte {
+	if len(in) == 0 {
+		return nil
+	}
+	return append([]byte(nil), in...)
+}
+
+func cloneStrings(in []string) []string {
+	if len(in) == 0 {
+		return nil
+	}
+	return append([]string(nil), in...)
+}
+
+func cloneStringMap(in map[string]string) map[string]string {
+	if len(in) == 0 {
+		return nil
+	}
+	out := make(map[string]string, len(in))
+	for key, value := range in {
+		out[key] = value
+	}
+	return out
+}
+
+func cloneAnySlice(in []any) []any {
+	if len(in) == 0 {
+		return nil
+	}
+	out := make([]any, len(in))
+	for idx, value := range in {
+		out[idx] = Clone(value)
+	}
+	return out
+}
+
+func cloneAnyMap(in map[string]any) map[string]any {
+	if len(in) == 0 {
+		return nil
+	}
+	out := make(map[string]any, len(in))
+	for key, value := range in {
+		out[key] = Clone(value)
+	}
+	return out
+}