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/select_character_init_guard.go

@@ -0,0 +1,41 @@
+package dnfbridge
+
+// beginCurrentSelectCharacterInit claims the current character-selection
+// lifecycle. A repeated msg=4 for the same character is a retry of the active
+// lifecycle and must not rebuild the scene stream a second time. A different
+// character replaces the claim and starts a fresh lifecycle.
+func beginCurrentSelectCharacterInit(session *gameSession, characterID uint16) bool {
+	if session == nil || characterID == 0 {
+		return false
+	}
+	session.selectCharacterInitMu.Lock()
+	defer session.selectCharacterInitMu.Unlock()
+	if session.selectCharacterInitActive && session.selectCharacterInitCharacterID == characterID {
+		return true
+	}
+	session.selectCharacterInitActive = true
+	session.selectCharacterInitCharacterID = characterID
+	return false
+}
+
+func abortCurrentSelectCharacterInit(session *gameSession, characterID uint16) {
+	if session == nil {
+		return
+	}
+	session.selectCharacterInitMu.Lock()
+	if session.selectCharacterInitActive && session.selectCharacterInitCharacterID == characterID {
+		session.selectCharacterInitActive = false
+		session.selectCharacterInitCharacterID = 0
+	}
+	session.selectCharacterInitMu.Unlock()
+}
+
+func resetCurrentSelectCharacterInit(session *gameSession) {
+	if session == nil {
+		return
+	}
+	session.selectCharacterInitMu.Lock()
+	session.selectCharacterInitActive = false
+	session.selectCharacterInitCharacterID = 0
+	session.selectCharacterInitMu.Unlock()
+}