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/dungeon_kill_reward_idempotency_test.go

@@ -0,0 +1,47 @@
+package dnfbridge
+
+import (
+	"encoding/binary"
+	"testing"
+
+	"longheng.io/server/internal/modules/dnf/dungeoncmd"
+)
+
+func TestCurrentDungeonDuplicateAuthoritativeDeathCannotMutateBlockedDropStateTwice(t *testing.T) {
+	service, runtime, _ := prepareCurrentDungeonDropTest(t, 2, 3227)
+	connection := &bufferConn{}
+	session := &gameSession{
+		conn:                connection,
+		connID:              "dungeon-kill-reward-idempotency-test",
+		selectedCharacterID: 99,
+		dungeon:             dungeonSessionState{runtime: runtime},
+	}
+	monster := runtime.Room.Snapshot().Monsters[0]
+	deathBody := make([]byte, dungeoncmd.DieMonsterRequestSize)
+	binary.LittleEndian.PutUint32(deathBody[0:4], monster.ObjectKey)
+	binary.LittleEndian.PutUint16(deathBody[4:6], currentSceneActorObjectKey(99))
+
+	if err := service.handleDungeonMonsterDeath(session, deathBody); err != nil {
+		t.Fatal(err)
+	}
+	if connection.write.Len() == 0 || runtime.DropOwner != nil {
+		t.Fatalf("first authoritative death response bytes=%d owner=%+v", connection.write.Len(), runtime.DropOwner)
+	}
+	firstNextObjectKey := runtime.NextObjectKey
+
+	connection.write.Reset()
+	if err := service.handleDungeonMonsterDeath(session, deathBody); err != nil {
+		t.Fatal(err)
+	}
+	if connection.write.Len() != 0 {
+		t.Fatalf("duplicate death emitted a second response: %x", connection.write.Bytes())
+	}
+	if runtime.NextObjectKey != firstNextObjectKey || runtime.DropOwner != nil {
+		t.Fatalf(
+			"duplicate death changed blocked drop state: next=%d/%d owner=%+v",
+			runtime.NextObjectKey,
+			firstNextObjectKey,
+			runtime.DropOwner,
+		)
+	}
+}