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/adventuregroup/owner.go

@@ -0,0 +1,99 @@
+package adventuregroup
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+const SelectorSlotMetadataKey = "selector_adventure_info_slot"
+
+var (
+	ErrOwnerUnavailable  = errors.New("adventure-group owner is unavailable")
+	ErrAccountRequired   = errors.New("adventure-group account id is required")
+	ErrAccountNotFound   = errors.New("adventure-group account is missing")
+	ErrSelectorSlotRange = errors.New("adventure-group selector slot is outside the verified range")
+)
+
+type RememberSelectorSlotCommand struct {
+	AccountID string
+	Slot      int
+	SlotLimit int
+	UpdatedAt time.Time
+}
+
+type RememberSelectorSlotResult struct {
+	AccountID string
+	Slot      int
+	Changed   bool
+}
+
+type Owner struct {
+	accounts dnfrepo.AccountRepository
+}
+
+func NewOwner(repositories dnfrepo.Group) (*Owner, error) {
+	if repositories.Account == nil {
+		return nil, ErrOwnerUnavailable
+	}
+	return &Owner{accounts: repositories.Account}, nil
+}
+
+// RememberSelectorSlot persists only a slot already verified against the
+// account roster by the bridge. The metadata write is key-scoped so unrelated
+// account fields and metadata cannot be replaced.
+func (o *Owner) RememberSelectorSlot(
+	ctx context.Context,
+	command RememberSelectorSlotCommand,
+) (RememberSelectorSlotResult, error) {
+	if o == nil || o.accounts == nil {
+		return RememberSelectorSlotResult{}, ErrOwnerUnavailable
+	}
+	accountID := strings.TrimSpace(command.AccountID)
+	if accountID == "" {
+		return RememberSelectorSlotResult{}, ErrAccountRequired
+	}
+	if command.SlotLimit <= 0 || command.Slot < 0 || command.Slot >= command.SlotLimit {
+		return RememberSelectorSlotResult{}, fmt.Errorf(
+			"%w: slot=%d limit=%d",
+			ErrSelectorSlotRange,
+			command.Slot,
+			command.SlotLimit,
+		)
+	}
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	if err := ctx.Err(); err != nil {
+		return RememberSelectorSlotResult{}, err
+	}
+	account, found, err := o.accounts.Load(ctx, accountID)
+	if err != nil {
+		return RememberSelectorSlotResult{}, fmt.Errorf("load adventure-group account: %w", err)
+	}
+	if !found || strings.TrimSpace(account.AccountID) != accountID {
+		return RememberSelectorSlotResult{}, fmt.Errorf("%w: account=%s", ErrAccountNotFound, accountID)
+	}
+	result := RememberSelectorSlotResult{AccountID: accountID, Slot: command.Slot}
+	value := strconv.Itoa(command.Slot)
+	if strings.TrimSpace(account.Metadata[SelectorSlotMetadataKey]) == value {
+		return result, nil
+	}
+	if err := dnfrepo.SaveAccountMetadataEntry(
+		ctx,
+		o.accounts,
+		account,
+		SelectorSlotMetadataKey,
+		value,
+		command.UpdatedAt,
+	); err != nil {
+		return RememberSelectorSlotResult{}, fmt.Errorf("save adventure-group selector slot: %w", err)
+	}
+	result.Changed = true
+	return result, nil
+}