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/socketemblem/owner.go

@@ -0,0 +1,142 @@
+package socketemblem
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+var (
+	ErrOwnerUnavailable  = errors.New("socket and emblem owner is unavailable")
+	ErrCharacterRequired = errors.New("socket and emblem character id is required")
+	ErrInventoryNotFound = errors.New("socket and emblem inventory is not found")
+	ErrProjectorRequired = errors.New("socket and emblem mutation projector is required")
+)
+
+// Assets are transaction-local clones. The bridge projector may translate
+// current-client raw rows, but only this owner commits the resulting aggregate
+// changes.
+type Assets struct {
+	Inventory      *dnfrepo.InventoryRecord
+	Equipment      *dnfrepo.EquipmentRecord
+	EquipmentFound bool
+}
+
+type Changes struct {
+	Inventory bool
+	Equipment bool
+}
+
+type Projector func(*Assets) (Changes, error)
+
+type Command struct {
+	CharacterID string
+	UpdatedAt   time.Time
+	Project     Projector
+}
+
+// Owner is the durable boundary shared by the four independently registered
+// socket/emblem gameplays.
+type Owner struct {
+	items dnfrepo.CharacterItemUnitOfWork
+}
+
+func NewOwner(repositories dnfrepo.Group) (*Owner, error) {
+	if repositories.CharacterItems == nil {
+		return nil, ErrOwnerUnavailable
+	}
+	return &Owner{items: repositories.CharacterItems}, nil
+}
+
+func (o *Owner) OpenEquipmentSocket(ctx context.Context, command Command) error {
+	return o.mutate(ctx, "equipment-socket-open", command)
+}
+
+func (o *Owner) AttachEquipmentEmblems(ctx context.Context, command Command) error {
+	return o.mutate(ctx, "equipment-emblem-attach", command)
+}
+
+func (o *Owner) OpenAvatarSocket(ctx context.Context, command Command) error {
+	return o.mutate(ctx, "avatar-socket-open", command)
+}
+
+func (o *Owner) AttachAvatarEmblems(ctx context.Context, command Command) error {
+	return o.mutate(ctx, "avatar-emblem-attach", command)
+}
+
+func (o *Owner) mutate(ctx context.Context, operation string, command Command) error {
+	if o == nil || o.items == nil {
+		return ErrOwnerUnavailable
+	}
+	characterID := strings.TrimSpace(command.CharacterID)
+	if characterID == "" {
+		return ErrCharacterRequired
+	}
+	if command.Project == nil {
+		return ErrProjectorRequired
+	}
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+	now := command.UpdatedAt.UTC()
+	if now.IsZero() {
+		now = time.Now().UTC()
+	}
+
+	return o.items.WithinCharacterItems(ctx, characterID, func(
+		inventories dnfrepo.InventoryRepository,
+		equipment dnfrepo.EquipmentRepository,
+	) error {
+		if inventories == nil || equipment == nil {
+			return ErrOwnerUnavailable
+		}
+		inventory, found, err := inventories.Load(ctx, characterID)
+		if err != nil {
+			return err
+		}
+		if !found || strings.TrimSpace(inventory.CharacterID) != characterID {
+			return fmt.Errorf("%w: character=%s operation=%s", ErrInventoryNotFound, characterID, operation)
+		}
+		equipmentRecord, equipmentFound, err := equipment.Load(ctx, characterID)
+		if err != nil {
+			return err
+		}
+		if equipmentFound && strings.TrimSpace(equipmentRecord.CharacterID) != characterID {
+			return ErrOwnerUnavailable
+		}
+
+		inventory = dnfrepo.CloneInventory(inventory)
+		equipmentRecord = dnfrepo.CloneEquipment(equipmentRecord)
+		changes, err := command.Project(&Assets{
+			Inventory:      &inventory,
+			Equipment:      &equipmentRecord,
+			EquipmentFound: equipmentFound,
+		})
+		if err != nil {
+			return err
+		}
+		if changes.Inventory {
+			inventory.UpdatedAt = now
+			if err := dnfrepo.SaveInventoryFields(ctx, inventories, inventory, dnfrepo.InventoryFieldSlots); err != nil {
+				return err
+			}
+		}
+		if changes.Equipment {
+			if !equipmentFound {
+				return fmt.Errorf("%w: character=%s operation=%s equipment missing", ErrOwnerUnavailable, characterID, operation)
+			}
+			equipmentRecord.UpdatedAt = now
+			if err := dnfrepo.SaveEquipmentFields(ctx, equipment, equipmentRecord, dnfrepo.EquipmentFieldEntries); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}