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/repository/companion_read.go

@@ -0,0 +1,34 @@
+package repository
+
+import (
+	"context"
+	"errors"
+)
+
+var (
+	ErrCompanionReadUnavailable      = errors.New("companion consistent read unavailable")
+	ErrCompanionReadOnly             = errors.New("companion snapshot is read-only")
+	ErrCompanionSelection            = errors.New("invalid companion selection")
+	ErrCompanionAccountMismatch      = errors.New("companion account mismatch")
+	ErrCompanionCharacterUnavailable = errors.New("companion character missing or deleted")
+)
+
+// CompanionSourceState is detached repository data, not a client packet.
+// Reading it grants neither a live session nor permission to create an APC.
+type CompanionSourceState struct {
+	Owner        CharacterRecord
+	Source       CharacterRecord
+	Equipment    EquipmentRecord
+	Skill        SkillRecord
+	HasEquipment bool
+	HasSkill     bool
+}
+
+// CompanionSourceReader is an optional character-repository capability.
+// Implementations must read owner, source, equipment and skills in ONE
+// read-only database snapshot from the authoritative write route. A loop of
+// ordinary Group.Load calls is not an acceptable implementation.
+// accountID and ownerID must come from the authenticated server session.
+type CompanionSourceReader interface {
+	ReadCompanionSource(context.Context, string, string, string) (CompanionSourceState, error)
+}