feat: add permission check

internal/models/role.go

@@ -42,3 +42,7 @@ func (role Role) Valid() error {
 	}
 	return lib.ErrBadRole
 }
+
+func (role Role) AsPointer() *Role {
+	return &role
+}

internal/models/user.go

@@ -0,0 +1,9 @@
+package models
+
+import "time"
+
+type User struct {
+	UserId    *int32     `json:"user_id" db:"user_id"`
+	Role      *Role      `json:"role" db:"role"`
+	UpdatedAt *time.Time `json:"updated_at" db:"updated_at"`
+}