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/dnfbridge/guild_member_offline_test.go

@@ -0,0 +1,51 @@
+package dnfbridge
+
+import (
+	"testing"
+	"time"
+
+	dnfguild "longheng.io/server/internal/modules/dnf/guild"
+)
+
+// testGuildMemberListNow is a fixed clock for the member-list builders. The row
+// carries elapsed-offline seconds, so the tests need a stable "now".
+func testGuildMemberListNow() time.Time {
+	return time.Date(2026, 9, 8, 22, 0, 0, 0, time.UTC)
+}
+
+// The elapsed-offline u32 is the only field in a member row that separates an
+// offline member from an online one: the channel byte 0xff just becomes
+// member+0x34 == -1, which the window turns into a flag rather than dropping
+// the row. Sending zero for an offline member -- which this tree did, because
+// the slot carried Mileage -- makes it indistinguishable from an online one.
+func TestCurrentGuildMemberOfflineSecondsSeparatesOnlineFromOffline(t *testing.T) {
+	now := testGuildMemberListNow()
+	member := dnfguild.Member{
+		CharacterID:  "42",
+		JoinedAt:     now.Add(-72 * time.Hour),
+		LastOnlineAt: now.Add(-90 * time.Minute),
+	}
+
+	if got := currentGuildMemberOfflineSeconds(member, true, now); got != 0 {
+		t.Errorf("online member offline seconds = %d, want 0", got)
+	}
+	if got := currentGuildMemberOfflineSeconds(member, false, now); got != 5400 {
+		t.Errorf("offline member offline seconds = %d, want 5400", got)
+	}
+
+	// A member that was never stamped online falls back to its join time, so
+	// the value stays non-zero. Reporting zero would look online.
+	neverSeen := dnfguild.Member{CharacterID: "1", JoinedAt: now.Add(-2 * time.Hour)}
+	if got := currentGuildMemberOfflineSeconds(neverSeen, false, now); got != 7200 {
+		t.Errorf("never-online member offline seconds = %d, want 7200", got)
+	}
+
+	// A clock that moved backwards must not wrap the unsigned field.
+	future := dnfguild.Member{CharacterID: "7", LastOnlineAt: now.Add(time.Hour)}
+	if got := currentGuildMemberOfflineSeconds(future, false, now); got != 0 {
+		t.Errorf("future last-online offline seconds = %d, want 0", got)
+	}
+	if got := currentGuildMemberOfflineSeconds(dnfguild.Member{}, false, now); got != 0 {
+		t.Errorf("unknown member offline seconds = %d, want 0", got)
+	}
+}