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/cera_package_expand.go

@@ -0,0 +1,88 @@
+package dnfbridge
+
+import (
+	"fmt"
+	"math"
+)
+
+// expandCurrentDeterministicNestedCeraPackages follows historical
+// [cera package] rewards which are themselves only transport wrappers. These
+// wrappers are normally expanded by Cera-shop checkout and are not usable
+// inventory boxes. Expanding their deterministic fixed/singleton contents at
+// the owning package boundary prevents a player from receiving an inert inner
+// box. Random boosters, booster selections, [usable cera package] items,
+// packages with alternative selections, and packages containing avatars stay
+// as terminal inventory items so their own current-EXE UI/protocol remains the
+// authority.
+func expandCurrentDeterministicNestedCeraPackages(
+	catalog *pvfDungeonDropCatalog,
+	rewards []currentCeraPackageReward,
+) ([]currentCeraPackageReward, error) {
+	if catalog == nil || catalog.source == nil {
+		return nil, errCurrentCeraPackagePVFInvalid
+	}
+	result := make([]currentCeraPackageReward, 0, len(rewards))
+	var total uint64
+	var walk func(currentCeraPackageReward, int, map[uint32]struct{}) error
+	walk = func(reward currentCeraPackageReward, depth int, path map[uint32]struct{}) error {
+		if reward.Definition.ItemID == 0 || reward.Count == 0 {
+			return errCurrentCeraPackagePVFInvalid
+		}
+		definition, recognized, err := resolveCurrentCeraPackageDefinitionForSource(catalog, reward.Definition)
+		if err != nil {
+			return err
+		}
+		deterministic := recognized && definition.StackableType == "[cera package]" && len(definition.AvatarItemIDs) == 0
+		if deterministic {
+			for _, group := range definition.SelectionGroups {
+				if len(group) != 1 {
+					deterministic = false
+					break
+				}
+			}
+		}
+		if !deterministic {
+			if len(result) >= currentCeraPackageMaxRewardRows {
+				return fmt.Errorf("%w: expanded reward rows exceed %d", errCurrentCeraPackagePVFInvalid, currentCeraPackageMaxRewardRows)
+			}
+			total += uint64(reward.Count)
+			if total > currentCeraPackageMaxRewardAmount {
+				return fmt.Errorf("%w: expanded reward total=%d", errCurrentCeraPackagePVFInvalid, total)
+			}
+			result = append(result, reward)
+			return nil
+		}
+		if depth >= currentCeraPackageGraphMaxDepth {
+			return fmt.Errorf("%w: nested package depth exceeds %d at item=%d", errCurrentCeraPackagePVFInvalid, currentCeraPackageGraphMaxDepth, reward.Definition.ItemID)
+		}
+		if _, cycle := path[reward.Definition.ItemID]; cycle {
+			return fmt.Errorf("%w: nested package cycle at item=%d", errCurrentCeraPackagePVFInvalid, reward.Definition.ItemID)
+		}
+		nextPath := make(map[uint32]struct{}, len(path)+1)
+		for itemID := range path {
+			nextPath[itemID] = struct{}{}
+		}
+		nextPath[reward.Definition.ItemID] = struct{}{}
+		children := append([]currentCeraPackageReward(nil), definition.Rewards...)
+		for _, group := range definition.SelectionGroups {
+			children = append(children, group[0])
+		}
+		for _, child := range children {
+			count := uint64(reward.Count) * uint64(child.Count)
+			if count == 0 || count > math.MaxUint32 || count > currentCeraPackageMaxRewardAmount {
+				return fmt.Errorf("%w: nested package item=%d reward=%d count=%d", errCurrentCeraPackagePVFInvalid, reward.Definition.ItemID, child.Definition.ItemID, count)
+			}
+			child.Count = uint32(count)
+			if err := walk(child, depth+1, nextPath); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+	for _, reward := range rewards {
+		if err := walk(reward, 0, nil); err != nil {
+			return nil, err
+		}
+	}
+	return result, nil
+}