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/gameplay_module_skill.go

@@ -0,0 +1,64 @@
+package dnfbridge
+
+import "longheng.io/server/internal/modules/dnf/dnfenum"
+
+func skillGameplayModule() gameplayModuleDefinition {
+	layoutOpcode := uint16(dnfenum.CmdPacketChangeSkillslot)
+	buyOpcode := uint16(dnfenum.CmdPacketBuySkill)
+	resetOpcode := uint16(dnfenum.CmdPacketSkillInit)
+	characterOptionOpcode := uint16(dnfenum.CmdPacketSaveCharacterOption)
+	comboOpcode := uint16(dnfenum.CmdPacketComboSkillInfo)
+	comboResetOpcode := uint16(dnfenum.CmdPacketComboSkillExtensionQuickSlotReset)
+	dojoOpcode := uint16(dnfenum.CmdPacketArcadePVPDataCopy)
+	characterOptionHandler := func(service *Service, session *gameSession, request gameplayRequest) error {
+		return service.handleCurrentSaveCharacterOption(session, request.Body)
+	}
+	return gameplayModuleDefinition{
+		Name: "skill",
+		LegacyHandlers: map[uint16]gameplayHandler{
+			dojoOpcode: func(service *Service, session *gameSession, request gameplayRequest) error {
+				return service.handleCurrentPVPDojoSkillMode(session, request.Body)
+			},
+			characterOptionOpcode: characterOptionHandler,
+			comboOpcode: func(service *Service, session *gameSession, request gameplayRequest) error {
+				return service.handleCurrentDarkKnightComboSkillInfo(session, request.Body)
+			},
+			comboResetOpcode: func(service *Service, session *gameSession, request gameplayRequest) error {
+				return service.handleCurrentDarkKnightComboQuickSlotReset(session, request.Body)
+			},
+		},
+		UpperHandlers: map[uint16]gameplayHandler{
+			dojoOpcode: defaultClassGameplayHandler("game-pvp-dojo-mode-class-blocked",
+				"current_exe_dojo_mode_requires_default_class", (*Service).handleCurrentPVPDojoSkillMode),
+			characterOptionOpcode: defaultClassGameplayHandler(
+				"game-save-character-option-ignored",
+				"current_exe_op447_command_class_mismatch",
+				func(service *Service, session *gameSession, body []byte) error {
+					return service.handleCurrentSaveCharacterOption(session, body)
+				},
+			),
+			comboOpcode: defaultClassGameplayHandler(
+				"game-dark-knight-combo-skill-info-blocked",
+				"current_exe_op508_command_class_mismatch",
+				(*Service).handleCurrentDarkKnightComboSkillInfo,
+			),
+			comboResetOpcode: defaultClassGameplayHandler(
+				"game-dark-knight-combo-quick-slot-reset-blocked",
+				"current_exe_op510_command_class_mismatch",
+				(*Service).handleCurrentDarkKnightComboQuickSlotReset,
+			),
+		},
+		LegacyNormalizers: map[uint16]gameplayLegacyNormalizer{
+			dojoOpcode: func(body []byte) []byte { return stripLegacyTransportTrailer(body, 1) },
+			layoutOpcode: func(body []byte) []byte {
+				return stripLegacyTransportTrailer(body, 8)
+			},
+			buyOpcode:   stripLegacyBuySkillTransportTrailer,
+			resetOpcode: func(body []byte) []byte { return stripLegacyTransportTrailer(body, 2) },
+			comboOpcode: normalizeLegacyDarkKnightComboSkillInfoBody,
+			comboResetOpcode: func(body []byte) []byte {
+				return stripLegacyTransportTrailer(body, 2)
+			},
+		},
+	}
+}