Catalog Entity, Model and DTO fields updated

catalog/entity/product.go

@@ -3,8 +3,8 @@ package catalog
 import "github.com/jackc/pgtype"
 
 type Product struct {
-	ID        int              `db:"id"`
-	PID       string           `db:"pid"`
+	ID        string           `db:"id"`
+	Slug      string           `db:"slug"`
 	Name      string           `db:"name"`
 	Price     float64          `db:"price"`
 	CreatedAt pgtype.Timestamp `db:"created_at"`