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/chat/megaphone_owner_test.go

@@ -0,0 +1,73 @@
+package chat
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+	"longheng.io/server/internal/modules/dnf/repository/memory"
+)
+
+func TestConsumeServerMegaphoneUsesExactMainInventorySlot(t *testing.T) {
+	repositories := memory.NewMemoryGroup()
+	ctx := context.Background()
+	if err := repositories.Character.Save(ctx, dnfrepo.CharacterRecord{CharacterID: "77", AccountID: "account"}); err != nil {
+		t.Fatal(err)
+	}
+	if err := repositories.Inventory.Save(ctx, dnfrepo.InventoryRecord{
+		CharacterID: "77",
+		Slots: map[string]dnfrepo.ItemStack{
+			"0:7": {ItemID: int64(ServerMegaphoneItemID), Count: 2},
+			"0:8": {ItemID: int64(ServerMegaphoneItemID), Count: 3},
+		},
+	}); err != nil {
+		t.Fatal(err)
+	}
+	owner, err := NewOwner(repositories)
+	if err != nil {
+		t.Fatal(err)
+	}
+	result, err := owner.ConsumeServerMegaphone(ctx, Command{AccountID: "account", CharacterID: "77", Slot: 7})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if result.Slot != 7 || result.Remaining != 1 || result.Removed {
+		t.Fatalf("result=%+v", result)
+	}
+	stored, found, err := repositories.Inventory.Load(ctx, "77")
+	if err != nil || !found {
+		t.Fatalf("load inventory found=%t err=%v", found, err)
+	}
+	if got := stored.Slots["0:7"].Count; got != 1 {
+		t.Fatalf("slot7 count=%d want=1", got)
+	}
+	if got := stored.Slots["0:8"].Count; got != 3 {
+		t.Fatalf("slot8 count=%d want=3", got)
+	}
+}
+
+func TestConsumeServerMegaphoneRejectsWrongOwnerAndMissingExactSlot(t *testing.T) {
+	repositories := memory.NewMemoryGroup()
+	ctx := context.Background()
+	if err := repositories.Character.Save(ctx, dnfrepo.CharacterRecord{CharacterID: "77", AccountID: "account"}); err != nil {
+		t.Fatal(err)
+	}
+	if err := repositories.Inventory.Save(ctx, dnfrepo.InventoryRecord{
+		CharacterID: "77",
+		Slots:       map[string]dnfrepo.ItemStack{"0:8": {ItemID: int64(ServerMegaphoneItemID), Count: 1}},
+	}); err != nil {
+		t.Fatal(err)
+	}
+	owner, _ := NewOwner(repositories)
+	if _, err := owner.ConsumeServerMegaphone(ctx, Command{AccountID: "other", CharacterID: "77", Slot: 8}); !errors.Is(err, ErrAccountMismatch) {
+		t.Fatalf("wrong-account error=%v", err)
+	}
+	if _, err := owner.ConsumeServerMegaphone(ctx, Command{AccountID: "account", CharacterID: "77", Slot: 7}); !errors.Is(err, ErrItemMissing) {
+		t.Fatalf("wrong-slot error=%v", err)
+	}
+	stored, _, _ := repositories.Inventory.Load(ctx, "77")
+	if got := stored.Slots["0:8"].Count; got != 1 {
+		t.Fatalf("slot8 changed after rejection: %d", got)
+	}
+}