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/gm_tool_mail_seal_test.go

@@ -0,0 +1,63 @@
+package dnfbridge
+
+import (
+	"testing"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+// GM item mail hand-builds its stack, so it has to apply the same creation
+// rule the shared constructor does: `[attach type] [sealing]` equipment is
+// delivered sealed (+0x0D = 1). Delivered unsealed, the client treats the
+// piece as bound -- untradeable, and the 合成器 rejects it ("解除封装的装备无法
+// 进行合成。", dstr 25065).
+func TestGMMailSealsSealingAttachTypeEquipment(t *testing.T) {
+	for _, rarity := range []int64{0, 2, 4, 5, 6} {
+		sealing := dungeonDropItemDefinition{
+			ItemID:        101010047,
+			Kind:          dungeonDropItemEquipment,
+			Rarity:        rarity,
+			EquipmentType: "[weapon]",
+			AttachType:    "`[sealing]`",
+		}
+		stack := dnfrepo.ItemStack{ItemID: 101010047, Count: 1, Extra: map[string]string{"item_kind": "equipment"}}
+		gmApplyMailEquipmentSeal(&stack, sealing)
+		if stack.Extra["seal_flag"] != "1" {
+			t.Fatalf("rarity=%d extra=%+v want seal_flag=1", rarity, stack.Extra)
+		}
+		// The mail attachment and the claimed bag row are both projected from
+		// this stack, so the seal has to survive into the wire row.
+		entry := currentItemListEntryFromStack(dnfrepo.MainInventoryListType, 0, stack)
+		if entry.data[0x0D] != 1 {
+			t.Fatalf("rarity=%d row +0x0D=%d want 1", rarity, entry.data[0x0D])
+		}
+	}
+
+	// Every other attach type stays unsealed, and rarity never seals anything.
+	for _, attach := range []string{"`[trade]`", "`[trade delete]`", "`[free]`", "`[account]`", "`[sealing trade]`", ""} {
+		plain := dungeonDropItemDefinition{
+			ItemID:        101010047,
+			Kind:          dungeonDropItemEquipment,
+			Rarity:        6,
+			EquipmentType: "[weapon]",
+			AttachType:    attach,
+		}
+		stack := dnfrepo.ItemStack{ItemID: 101010047, Count: 1, Extra: map[string]string{"item_kind": "equipment"}}
+		gmApplyMailEquipmentSeal(&stack, plain)
+		if _, sealed := stack.Extra["seal_flag"]; sealed {
+			t.Fatalf("attach=%q was sealed: %+v", attach, stack.Extra)
+		}
+		entry := currentItemListEntryFromStack(dnfrepo.MainInventoryListType, 0, stack)
+		if entry.data[0x0D] != 0 {
+			t.Fatalf("attach=%q row +0x0D=%d want 0", attach, entry.data[0x0D])
+		}
+	}
+
+	// Stackables are never sealed, whatever their attach type says.
+	stackable := dungeonDropItemDefinition{ItemID: 3037, Kind: dungeonDropItemStackable, AttachType: "`[sealing]`"}
+	stack := dnfrepo.ItemStack{ItemID: 3037, Count: 5}
+	gmApplyMailEquipmentSeal(&stack, stackable)
+	if _, sealed := stack.Extra["seal_flag"]; sealed {
+		t.Fatalf("stackable was sealed: %+v", stack.Extra)
+	}
+}