小助手内嵌 GM 页：网页重定向 + 物品分页 + 装备强化增幅发放

- 90CN.dll 新增 IE 控件接管，把腾讯小助手页面重定向到本地 GM 页
- gmweb：物品列表改分页（每页 10/20/50，列表固定 6 行高）
- 发放走 grant-options，支持强化 0-31、增幅属性+等级、锻造 0-8、品质
- 服务端补齐 amplify_level：等级统一写入 ext_data0/packed_flag_byte/reinforce/upgrade_level
- 增幅与强化互斥校验，避免写出客户端无法创建的装备

server/internal/services/dnfbridge/gm_tool_items_extra.go

@@ -38,6 +38,7 @@ type GMItemGrantOptionsRequest struct {
 	Count            uint32   `json:"count,omitempty"`
 	Reinforce        int      `json:"reinforce,omitempty"`
 	AmplifyType      int      `json:"amplify_type,omitempty"`
+	AmplifyLevel     int      `json:"amplify_level,omitempty"`
 	Forging          int      `json:"forging,omitempty"`
 	EquipmentQuality string   `json:"equipment_quality,omitempty"`
 	Durability       *int     `json:"durability,omitempty"`
@@ -92,10 +93,18 @@ func (s *Service) GMGrantItemWithOptions(
 	// 与邮件发放相同的取值范围校验，避免写出客户端读不了的装备。
 	if request.Reinforce < 0 || request.Reinforce > 31 ||
 		request.AmplifyType < 0 || request.AmplifyType > 4 ||
+		request.AmplifyLevel < 0 || request.AmplifyLevel > 31 ||
 		request.Forging < 0 || request.Forging > 8 ||
 		request.ExpireDays < 0 || request.ExpireDays > 3650 {
 		return result, fmt.Errorf("%w: reinforce/amplify/forging/expire_days out of range", ErrGMRequestInvalid)
 	}
+	// 红字装不能同时是白字强化：两者写进同一个等级字节，静默取一个比报错更难查。
+	if request.AmplifyType == 0 && request.AmplifyLevel != 0 {
+		return result, fmt.Errorf("%w: amplify_level requires amplify_type", ErrGMRequestInvalid)
+	}
+	if request.AmplifyType != 0 && request.Reinforce != 0 {
+		return result, fmt.Errorf("%w: reinforce and amplify are mutually exclusive", ErrGMRequestInvalid)
+	}
 
 	catalog, err := s.currentPVFItemCatalog()
 	if err != nil {
@@ -119,6 +128,7 @@ func (s *Service) GMGrantItemWithOptions(
 	stack, buildErr := s.buildGMGrantItemStack(ctx, catalog, definition, count, gmGrantItemOptions{
 		Reinforce:        request.Reinforce,
 		AmplifyType:      request.AmplifyType,
+		AmplifyLevel:     request.AmplifyLevel,
 		Forging:          request.Forging,
 		EquipmentQuality: request.EquipmentQuality,
 		Durability:       request.Durability,
@@ -181,6 +191,7 @@ func (s *Service) GMGrantItemWithOptions(
 type gmGrantItemOptions struct {
 	Reinforce        int
 	AmplifyType      int
+	AmplifyLevel     int
 	Forging          int
 	EquipmentQuality string
 	Durability       *int
@@ -262,10 +273,19 @@ func (s *Service) buildGMGrantItemStack(
 		stack.Extra["max_durability"] = strconv.FormatInt(int64(definition.Durability), 10)
 	}
 
-	if options.Reinforce > 0 {
-		value := strconv.Itoa(options.Reinforce)
-		stack.Extra["reinforce"] = value
-		stack.Extra["ext_data0"] = value
+	// 强化等级与增幅等级共用 raw[0x0A] 这一个字节：带增幅时它就是增幅等级。
+	// 这组键与 gm_admin.go 的系统邮件路径（线上已验证过的那条）完全一致，
+	// 少了 packed_flag_byte/upgrade_level 时，客户端重登重建列会落回 0 级。
+	level := options.Reinforce
+	if options.AmplifyType > 0 {
+		level = options.AmplifyLevel
+	}
+	if level > 0 {
+		text := strconv.Itoa(level)
+		stack.Extra["ext_data0"] = text
+		stack.Extra["packed_flag_byte"] = text
+		stack.Extra["reinforce"] = text
+		stack.Extra["upgrade_level"] = text
 	}
 	if options.Forging > 0 {
 		stack.Extra["forging"] = strconv.Itoa(options.Forging)