refactor: 重构资产实体和DTO结构类型

将gjson.Json类型替换为具体的结构体和map类型，修正DAO层链式调用，启用SKU元数据校验逻辑

consts/category/category_status.go

@@ -1,14 +1,28 @@
 package consts
 
+import "github.com/gogf/gf/v2/util/gconv"
+
 // CategoryStatus 分类状态枚举
 
-type CategoryStatusType *int
+var (
+	CategoryStatusDisable = newCategoryStatus(gconv.PtrInt8(0), "disable")
+	CategoryStatusEnable  = newCategoryStatus(gconv.PtrInt8(1), "enable")
+)
 
-type CategoryStatus struct {
-	Status CategoryStatusType
+type CategoryStatus *int8
+
+type categoryStatus struct {
+	code CategoryStatus
+	desc string
 }
 
-//var CategoryStatusVal = CategoryStatus{
-//	CategoryStatusActive:   gconv.PtrInt(1),
-//	CategoryStatusInactive: gconv.PtrInt(0),
-//}
+func (s categoryStatus) Code() CategoryStatus {
+	return s.code
+}
+func (s categoryStatus) Desc() string {
+	return s.desc
+}
+
+func newCategoryStatus(code CategoryStatus, desc string) categoryStatus {
+	return categoryStatus{code: code, desc: desc}
+}