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/app/dnf90/gm_tool_admin.go

@@ -825,6 +825,7 @@ func registerGMAdminRoutes(env *appkit.Env, service *dnfbridge.Service) {
 			ExpireDays        int      `json:"expire_days"`
 			Reinforce         int      `json:"reinforce"`
 			AmplifyType       int      `json:"amplify_type"`
+			AmplifyLevel      int      `json:"amplify_level"`
 			EquipmentQuality  string   `json:"equipment_quality"`
 			Forging           int      `json:"forging"`
 			EmblemItemIDs     []uint32 `json:"emblem_item_ids"`
@@ -845,6 +846,7 @@ func registerGMAdminRoutes(env *appkit.Env, service *dnfbridge.Service) {
 				ExpireDays:        request.ExpireDays,
 				Reinforce:         request.Reinforce,
 				AmplifyType:       request.AmplifyType,
+				AmplifyLevel:      request.AmplifyLevel,
 				EquipmentQuality:  request.EquipmentQuality,
 				Forging:           request.Forging,
 				EmblemItemIDs:     request.EmblemItemIDs,