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/services/dnfbridge/dungeon_item_cooldown_reset.go

@@ -0,0 +1,94 @@
+package dnfbridge
+
+import (
+	"context"
+	"strconv"
+
+	dnfitemcooldown "longheng.io/server/internal/modules/dnf/itemcooldown"
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+// resetHealingPotionCooldownsOnDungeonEntry clears the durable cooldown windows
+// of HP/MP recovery potions when a new dungeon run is committed, so every entry
+// starts with potions ready instead of inheriting the previous run's window.
+//
+// Only recovery consumables are touched: tickets, stat-change potions and other
+// [cooltime maintenance] items keep their cross-session windows.
+func (s *Service) resetHealingPotionCooldownsOnDungeonEntry(session *gameSession, source string) {
+	if s == nil || session == nil || session.selectedCharacterID == 0 {
+		return
+	}
+	repositories, ok := s.repositoryGroup()
+	if !ok || repositories.CharacterAssets == nil {
+		return
+	}
+	catalog, catalogErr := s.currentPVFItemCatalog()
+	if catalogErr != nil {
+		s.logGameEvent(session, "game-dungeon-potion-cooldown-reset-skipped",
+			"char_id", session.selectedCharacterID,
+			"source", source,
+			"reason", "catalog_unavailable",
+			"error", catalogErr)
+		return
+	}
+	characterID := strconv.FormatUint(uint64(session.selectedCharacterID), 10)
+	ctx, cancel := context.WithTimeout(context.Background(), createWriteTimeout)
+	defer cancel()
+
+	cleared := 0
+	var remaining []dnfitemcooldown.Entry
+	err := repositories.CharacterAssets.WithinCharacterAssets(ctx, characterID, func(
+		characters dnfrepo.CharacterRepository,
+		_ dnfrepo.InventoryRepository,
+		_ dnfrepo.EquipmentRepository,
+	) error {
+		character, found, loadErr := characters.Load(ctx, characterID)
+		if loadErr != nil {
+			return loadErr
+		}
+		if !found || character.Stats == nil {
+			return nil
+		}
+		character = dnfrepo.CloneCharacter(character)
+		for _, entry := range dnfitemcooldown.Entries(character.Stats) {
+			definition, resolveErr := catalog.ResolveItem(uint32(entry.ItemID))
+			if resolveErr != nil {
+				continue
+			}
+			if !definition.HasHPRecovery && !definition.HasMPRecovery {
+				continue
+			}
+			dnfitemcooldown.Clear(character.Stats, entry.ItemID)
+			cleared++
+		}
+		if cleared == 0 {
+			return nil
+		}
+		remaining = dnfitemcooldown.ActiveEntries(character.Stats, s.gameplayNow().UTC().Unix())
+		return dnfrepo.SaveCharacterFields(ctx, characters, character, dnfrepo.CharacterFieldStats)
+	})
+	if err != nil {
+		s.logGameEvent(session, "game-dungeon-potion-cooldown-reset-failed",
+			"char_id", session.selectedCharacterID,
+			"source", source,
+			"error", err)
+		return
+	}
+	if cleared > 0 {
+		// 客户端按同一份 PVF 自己起本地冷却，只清服务端记录不够：
+		// 这里把冷却列表（class-0/op172）重新下发一次（空列表就是 count=0），
+		// 让客户端把本地倒计时清掉。
+		body := buildCurrentItemCooltimeBody(remaining, s.gameplayNow().UTC().Unix())
+		if len(body) == 0 {
+			body = []byte{0}
+		}
+		sendErr := s.sendGameUpperRawClass(session, currentLoadCooltimeItemInfoMsgID, body, 0)
+		s.logGameEvent(session, "game-dungeon-potion-cooldown-reset",
+			"char_id", session.selectedCharacterID,
+			"source", source,
+			"cleared", cleared,
+			"remaining", len(remaining),
+			"projection_sent", sendErr == nil,
+			"error", sendErr)
+	}
+}