add category api docs

models/category.go

@@ -0,0 +1,26 @@
+package models
+
+import (
+	"gorm.io/gorm"
+)
+
+type Category struct {
+	gorm.Model
+	Translations []CategoryTranslation `gorm:"foreignKey:CategoryID"`
+}
+
+type CategoryTranslation struct {
+	gorm.Model
+	CategoryID uint `gorm:"uniqueIndex:idx_post_language"`
+	LanguageID uint `gorm:"uniqueIndex:idx_post_language"`
+	Name       string
+}
+
+type CategoryRequest struct {
+	Translations []CategoryTranslationRequest `json:"translations" binding:"required"`
+}
+
+type CategoryTranslationRequest struct {
+	LanguageID uint   `json:"languageId" binding:"required"`
+	Name       string `json:"name" binding:"required"`
+}