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/inventory/weakness_potion.go

@@ -0,0 +1,73 @@
+package inventory
+
+import (
+	"context"
+	"time"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+	dnfweaknesspotion "longheng.io/server/internal/modules/dnf/weaknesspotion"
+)
+
+// ApplyWeaknessPotion records the 防虚弱药剂 effect of one consumed item.
+//
+// The client applies the potion's buff locally and never reports it (live
+// capture 2026-09-15 00:43: the only uplink around a use is class-1/op44), so
+// the server has to recognise the item itself and remember the effect. The
+// effect has two halves, both owned here because both are character state:
+//
+//   - the current penalty is cleared immediately ("自动解除虚弱状态"), which is
+//     the same stamina/weakness_recovery_at pair dnfbridge's forced-return path
+//     writes, so the next weakness refresh publishes level 0 on its own;
+//   - the immunity window is stored as a durable unix second, because several
+//     variants state the effect survives a death, a town return and a relog.
+//
+// Items outside the family return false without touching the database, so an
+// unrelated consumable keeps exactly the behaviour it had before.
+func (o *Owner) ApplyWeaknessPotion(
+	ctx context.Context,
+	characterID string,
+	itemID int64,
+	now time.Time,
+) (bool, error) {
+	seconds, inFamily := dnfweaknesspotion.ImmunitySeconds(itemID)
+	if !inFamily || o == nil || o.assets == nil || characterID == "" {
+		return false, nil
+	}
+	if now.IsZero() {
+		now = time.Now().UTC()
+	} else {
+		now = now.UTC()
+	}
+	until := now.Add(time.Duration(seconds) * time.Second).Unix()
+	err := o.assets.WithinCharacterAssets(ctx, characterID, func(
+		characters dnfrepo.CharacterRepository,
+		_ dnfrepo.InventoryRepository,
+		_ dnfrepo.EquipmentRepository,
+	) error {
+		character, found, err := characters.Load(ctx, characterID)
+		if err != nil {
+			return err
+		}
+		if !found {
+			return ErrCharacterRequired
+		}
+		character = dnfrepo.CloneCharacter(character)
+		if character.Stats == nil {
+			character.Stats = make(map[string]int64, 4)
+		}
+		// Drinking a second potion must never shorten the window that is already
+		// running (a 60-minute 网吧 potion followed by a 10-minute one).
+		if existing := dnfweaknesspotion.ImmuneUntil(character.Stats); existing > until {
+			until = existing
+		}
+		character.Stats[dnfweaknesspotion.ImmuneUntilStatKey] = until
+		character.Stats[dnfweaknesspotion.WeaknessLevelStatKey] = 0
+		character.Stats[dnfweaknesspotion.WeaknessRecoveryAtStatKey] = 0
+		character.UpdatedAt = now
+		return dnfrepo.SaveCharacterFields(ctx, characters, character, dnfrepo.CharacterFieldStats)
+	})
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}