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/wedding/shop.go

@@ -0,0 +1,99 @@
+package wedding
+
+import (
+	"context"
+	"errors"
+	"sort"
+	"time"
+
+	repo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+// LovePointMaterial is the PVF shop currency, not a physical inventory stack.
+const LovePointMaterial = 10002606
+
+var ErrShopLoveMissing = errors.New("wedding shop love points are insufficient")
+
+type RingPurchase struct {
+	ActorID, PartnerID, AccountID string
+	Item                          Item
+	Gold, Love                    int64
+	Now                           time.Time
+	Grant                         func(*repo.InventoryRecord, Item) error
+}
+
+// BuyRingTicket debits the buyer's gold and the reciprocal couple currency
+// together with the real inventory grant. It does not upgrade either ring.
+func BuyRingTicket(ctx context.Context, repos repo.Group, cat *Catalog, cmd RingPurchase) (Result, error) {
+	if cat == nil || repos.CharacterTrade == nil || cmd.ActorID == "" || cmd.ActorID == cmd.PartnerID || cmd.AccountID == "" || cmd.Now.IsZero() || cmd.Item.Count != 1 || cmd.Gold < 0 || cmd.Gold > 0x7fffffff || cmd.Love <= 0 || cmd.Grant == nil {
+		return Result{}, Invalid
+	}
+	known := false
+	for _, ticket := range cat.RingTickets[1:] {
+		known = known || ticket.ID == cmd.Item.ID
+	}
+	if !known {
+		return Result{}, Invalid
+	}
+	ids := []string{cmd.ActorID, cmd.PartnerID}
+	sort.Strings(ids)
+	var result Result
+	err := repos.CharacterTrade.WithinCharacterTrade(ctx, ids[0], ids[1], func(chars repo.CharacterRepository, bags repo.InventoryRepository) error {
+		for i, id := range []string{cmd.ActorID, cmd.PartnerID} {
+			c, found, err := chars.Load(ctx, id)
+			if err != nil {
+				return err
+			}
+			if !found {
+				return Missing
+			}
+			result.Characters[i] = repo.CloneCharacter(c)
+		}
+		a, b := &result.Characters[0], &result.Characters[1]
+		if a.AccountID != cmd.AccountID {
+			return Invalid
+		}
+		if err := Validate(*a, *b, cat, 9, cmd.Now); err != nil {
+			return err
+		}
+		if a.Stats["gold"] < cmd.Gold {
+			return GoldMissing
+		}
+		if a.Stats["gold"] > 0x7fffffff {
+			return Invalid
+		}
+		if a.Stats["wedding_love"] != b.Stats["wedding_love"] || a.Stats["wedding_love"] < cmd.Love || a.Stats["wedding_love"] > cat.MaxLove {
+			return ErrShopLoveMissing
+		}
+		bag, found, err := bags.Load(ctx, cmd.ActorID)
+		if err != nil {
+			return err
+		}
+		if !found || bag.CharacterID != cmd.ActorID {
+			return Invalid
+		}
+		bag = repo.CloneInventory(bag)
+		if err := cmd.Grant(&bag, cmd.Item); err != nil {
+			return err
+		}
+		a.Stats["gold"] -= cmd.Gold
+		a.Stats["wedding_love"] -= cmd.Love
+		b.Stats["wedding_love"] -= cmd.Love
+		for _, c := range []*repo.CharacterRecord{a, b} {
+			c.UpdatedAt = cmd.Now
+			if err := repo.SaveCharacterFields(ctx, chars, *c, repo.CharacterFieldStats); err != nil {
+				return err
+			}
+		}
+		bag.UpdatedAt = cmd.Now
+		if err := repo.SaveInventoryFields(ctx, bags, bag, repo.InventoryFieldSlots); err != nil {
+			return err
+		}
+		result.Inventories[0], result.AssetsChanged = bag, true
+		return nil
+	})
+	if err != nil {
+		return Result{}, err
+	}
+	return result, nil
+}