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/cmd/scratch/removeitemexpirydb/main_test.go

@@ -0,0 +1,106 @@
+package main
+
+import (
+	"database/sql"
+	"encoding/binary"
+	"encoding/json"
+	"testing"
+	"time"
+
+	dnfrepo "longheng.io/server/internal/modules/dnf/repository"
+)
+
+func TestMakePermanentClearsStackableExpirationProjection(t *testing.T) {
+	expiresAt := time.Unix(1_849_989_600, 0).UTC()
+	raw := make([]byte, 0x77)
+	binary.LittleEndian.PutUint16(raw[usePeriodOffset:usePeriodOffset+2], 0xFFFF)
+	binary.LittleEndian.PutUint32(raw[legacyExpireOffset:legacyExpireOffset+4], uint32(expiresAt.Unix()))
+	binary.LittleEndian.PutUint32(raw[itemExpireOffset:itemExpireOffset+4], uint32(expiresAt.Unix()))
+	extra := map[string]string{
+		"item_kind":          "stackable",
+		"expire_time":        "1849989600",
+		"expire_unix":        "1849989600",
+		"usable_period_days": "7",
+		"expiration_source":  "runtime_pvf_usable_period_grant",
+	}
+	patched, result := makePermanent(raw, sql.NullTime{Time: expiresAt, Valid: true}, extra, itemKinds{Stackable: true})
+	if !result.changed || result.preserved {
+		t.Fatalf("result=%+v", result)
+	}
+	if binary.LittleEndian.Uint16(patched[usePeriodOffset:usePeriodOffset+2]) != 0 ||
+		binary.LittleEndian.Uint32(patched[legacyExpireOffset:legacyExpireOffset+4]) != 0 ||
+		binary.LittleEndian.Uint32(patched[itemExpireOffset:itemExpireOffset+4]) != 0 {
+		t.Fatalf("expiration projection was not cleared: %x", patched)
+	}
+	if binary.LittleEndian.Uint16(raw[usePeriodOffset:usePeriodOffset+2]) != 0xFFFF {
+		t.Fatal("source raw entry was mutated")
+	}
+}
+
+func TestMakePermanentPreservesEquipmentDurabilityAndUnrelatedLegacyWord(t *testing.T) {
+	expiresAt := time.Unix(1_849_989_600, 0).UTC()
+	raw := make([]byte, 0x77)
+	binary.LittleEndian.PutUint16(raw[usePeriodOffset:usePeriodOffset+2], 45)
+	binary.LittleEndian.PutUint32(raw[legacyExpireOffset:legacyExpireOffset+4], 0x11223344)
+	binary.LittleEndian.PutUint32(raw[itemExpireOffset:itemExpireOffset+4], uint32(expiresAt.Unix()))
+	patched, result := makePermanent(raw, sql.NullTime{Time: expiresAt, Valid: true}, map[string]string{"item_kind": "equipment"}, itemKinds{Equipment: true})
+	if !result.changed || binary.LittleEndian.Uint16(patched[usePeriodOffset:usePeriodOffset+2]) != 45 {
+		t.Fatalf("equipment durability changed: result=%+v raw=%x", result, patched)
+	}
+	if binary.LittleEndian.Uint32(patched[legacyExpireOffset:legacyExpireOffset+4]) != 0x11223344 {
+		t.Fatal("unrelated legacy word was cleared")
+	}
+	if binary.LittleEndian.Uint32(patched[itemExpireOffset:itemExpireOffset+4]) != 0 {
+		t.Fatal("equipment expiration timestamp remains")
+	}
+}
+
+func TestMakePermanentPreservesIndependentRuntimeDurations(t *testing.T) {
+	expiresAt := time.Unix(1_849_989_600, 0).UTC()
+	for _, extra := range []map[string]string{
+		{"source": "pvf_rental"},
+		{"expiration_source": "runtime_pvf_cera_shop_duration_grant"},
+	} {
+		raw := make([]byte, 0x77)
+		binary.LittleEndian.PutUint32(raw[itemExpireOffset:itemExpireOffset+4], uint32(expiresAt.Unix()))
+		patched, result := makePermanent(raw, sql.NullTime{Time: expiresAt, Valid: true}, extra, itemKinds{Equipment: true})
+		if !result.preserved || result.changed || binary.LittleEndian.Uint32(patched[itemExpireOffset:itemExpireOffset+4]) == 0 {
+			t.Fatalf("runtime duration was not preserved: result=%+v raw=%x", result, patched)
+		}
+	}
+}
+
+func TestPatchSQLiteInventoryPurgesOnlyDefinitionExpiration(t *testing.T) {
+	expiresAt := time.Unix(1_849_989_600, 0).UTC()
+	raw := make([]byte, 0x77)
+	binary.LittleEndian.PutUint32(raw[itemExpireOffset:itemExpireOffset+4], uint32(expiresAt.Unix()))
+	record := dnfrepo.InventoryRecord{
+		CharacterID: "7",
+		Slots: map[string]dnfrepo.ItemStack{
+			"0:1": {ItemID: 100, Count: 1, ExpireAt: expiresAt, RawEntry: raw, Extra: map[string]string{"item_kind": "stackable", "expire_time": "1849989600"}},
+			"0:2": {ItemID: 200, Count: 1, ExpireAt: expiresAt, RawEntry: append([]byte(nil), raw...), Extra: map[string]string{"source": "pvf_rental"}},
+		},
+	}
+	payload, err := json.Marshal(record)
+	if err != nil {
+		t.Fatal(err)
+	}
+	patched, targets, changed, preserved, err := patchSQLitePayload("inventory", payload, map[int64]itemKinds{100: {Stackable: true}, 200: {Equipment: true}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if targets != 2 || changed != 1 || preserved != 1 {
+		t.Fatalf("targets=%d changed=%d preserved=%d", targets, changed, preserved)
+	}
+	var got dnfrepo.InventoryRecord
+	if err := json.Unmarshal(patched, &got); err != nil {
+		t.Fatal(err)
+	}
+	if !got.Slots["0:1"].ExpireAt.IsZero() || got.Slots["0:1"].Extra["expire_time"] != "" ||
+		binary.LittleEndian.Uint32(got.Slots["0:1"].RawEntry[itemExpireOffset:itemExpireOffset+4]) != 0 {
+		t.Fatalf("definition expiration remains: %+v", got.Slots["0:1"])
+	}
+	if !got.Slots["0:2"].ExpireAt.Equal(expiresAt) {
+		t.Fatal("runtime rental expiration changed")
+	}
+}