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/emotion_change.go

@@ -0,0 +1,62 @@
+package dnfbridge
+
+import (
+	"context"
+	"encoding/binary"
+	"strconv"
+
+	"longheng.io/server/internal/modules/dnf/dnfenum"
+	dnfemotion "longheng.io/server/internal/modules/dnf/emotion"
+)
+
+const (
+	currentChangeEmotionOpcode uint16 = uint16(dnfenum.CmdPacketChangeEmotion)
+	currentEmotionIndexMax     uint16 = 0xff
+	currentEmotionFailureCode  byte   = 1
+)
+
+func (s *Service) handleCurrentChangeEmotion(session *gameSession, body []byte) error {
+	if session == nil || session.selectedCharacterID == 0 {
+		return nil
+	}
+	if len(body) < 2 {
+		s.logGameEvent(session, "game-change-emotion-blocked", "body_len", len(body), "reason", "body_too_short")
+		return nil
+	}
+	emotionIndex := int16(binary.LittleEndian.Uint16(body[0:2]))
+	if emotionIndex < 0 || uint16(emotionIndex) > currentEmotionIndexMax {
+		s.logGameEvent(session, "game-change-emotion-blocked", "emotion_index", emotionIndex, "reason", "emotion_index_out_of_range")
+		return s.sendGameUpperFailure(session, currentChangeEmotionOpcode, currentEmotionFailureCode)
+	}
+	characterID := strconv.FormatUint(uint64(session.selectedCharacterID), 10)
+
+	ctx, cancel := context.WithTimeout(context.Background(), createWriteTimeout)
+	defer cancel()
+	repos, ok := s.repositoryGroup()
+	if !ok {
+		s.logGameEvent(session, "game-change-emotion-save-failed", "char_id", characterID, "emotion_index", emotionIndex, "reason", "repository_unavailable")
+		return s.sendGameUpperFailure(session, currentChangeEmotionOpcode, currentEmotionFailureCode)
+	}
+	owner, err := dnfemotion.NewOwner(repos)
+	if err == nil {
+		_, err = owner.Apply(ctx, dnfemotion.Command{AccountID: s.accountIDForSession(session), SelectedCharacterID: session.selectedCharacterID, EmotionIndex: uint16(emotionIndex)})
+	}
+	if err != nil {
+		s.logGameEvent(session, "game-change-emotion-save-failed", "char_id", characterID, "emotion_index", emotionIndex, "reason", err)
+		return s.sendGameUpperFailure(session, currentChangeEmotionOpcode, currentEmotionFailureCode)
+	}
+
+	s.logGameEvent(session, "game-change-emotion",
+		"char_id", characterID,
+		"emotion_index", emotionIndex)
+
+	// ACK: IDA sub_1D18900 reads u16 emotionIndex from success body.
+	// Note: extended-login dispatch re-registers 254 as DoNothing, but the
+	// lobby handler sub_1CF5280 may still consume the body.
+	var w packetWriter
+	w.writeUint16(uint16(emotionIndex))
+	if err := s.sendGameUpperSuccess(session, currentChangeEmotionOpcode, w.bytes()); err != nil {
+		return err
+	}
+	return s.sendCurrentMoodProjection(session, uint16(emotionIndex), "change_emotion_after_ack")
+}