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/modules/dnf/characterdata/roster_owner.go

@@ -0,0 +1,39 @@
+package characterdata
+
+import (
+	"context"
+	"errors"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+var ErrRosterOwnerUnavailable = errors.New("character roster owner unavailable")
+
+// RosterOwner owns durable character-selector roster mutations.
+type RosterOwner struct {
+	characters dnfrepo.CharacterRepository
+}
+
+func NewRosterOwner(repositories dnfrepo.Group) (*RosterOwner, error) {
+	if repositories.Character == nil {
+		return nil, ErrRosterOwnerUnavailable
+	}
+	return &RosterOwner{characters: repositories.Character}, nil
+}
+
+// SwapSlots exchanges two occupied selector slots for one account.
+func (o *RosterOwner) SwapSlots(ctx context.Context, accountID string, slotA, slotB int) error {
+	if o == nil || o.characters == nil {
+		return ErrRosterOwnerUnavailable
+	}
+	return dnfrepo.SwapCharacterSlots(ctx, o.characters, accountID, slotA, slotB)
+}
+
+// DeleteCharacter validates the selector slot/name pair and commits the
+// soft-delete plus active-slot compaction through the repository boundary.
+func (o *RosterOwner) DeleteCharacter(ctx context.Context, accountID string, slot int, name string) error {
+	if o == nil || o.characters == nil {
+		return ErrRosterOwnerUnavailable
+	}
+	return dnfrepo.DeleteCharacterAndCompact(ctx, o.characters, accountID, slot, name)
+}