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/cmd/scratch/chdcheck/main.go

@@ -0,0 +1,54 @@
+package main
+
+// 诊断工具：用真实 channel_info.etc 复现频道相关的判定。
+// 用法: go run ./cmd/scratch/chdcheck <channel_info.etc 路径>
+import (
+	"fmt"
+	"os"
+
+	"longheng.io/server/internal/modules/dnf/channelcatalog"
+	"longheng.io/server/internal/modules/dnf/channelinfo"
+)
+
+func main() {
+	path := `runtime\data\dnf\channel_info.etc`
+	if len(os.Args) > 1 {
+		path = os.Args[1]
+	}
+	index, err := channelinfo.LoadFile(path)
+	if err != nil {
+		fmt.Println("LoadFile error:", err)
+		return
+	}
+	for _, serverID := range []int{0, 1} {
+		catalog, err := channelcatalog.New(index, channelcatalog.Options{ServerID: serverID})
+		if err != nil {
+			fmt.Printf("serverID=%d catalog error: %v\n", serverID, err)
+			continue
+		}
+		channels := catalog.Channels()
+		fmt.Printf("serverID=%d channels=%d first=%d last=%d\n", serverID, len(channels), channels[0].ID, channels[len(channels)-1].ID)
+		byType := map[uint8][]string{}
+		for _, channel := range channels {
+			if len(byType[channel.Type]) < 4 {
+				byType[channel.Type] = append(byType[channel.Type], fmt.Sprintf("%d/%s", channel.ID, channel.Group))
+			}
+		}
+		fmt.Printf("   types:")
+		for t, sample := range byType {
+			fmt.Printf(" %d(%v)", t, sample)
+		}
+		fmt.Println()
+		for _, id := range []int{19, 121, 181, 182, 253} {
+			channel, found := catalog.Channel(id)
+			if !found {
+				fmt.Printf("   id=%d: NOT FOUND\n", id)
+				continue
+			}
+			resident, eligible := catalog.ResidentFor(channel)
+			ok := found && eligible && resident.ID == channel.ID && channel.ID <= 255
+			fmt.Printf("   id=%d group=%q type=%d serverID=%d port=%d name=%q -> resident=%d eligible=%t handler_ok=%t\n",
+				id, channel.Group, channel.Type, channel.ServerID, channel.Port, channel.Name, resident.ID, eligible, ok)
+		}
+	}
+}