refactor: migration idp api (#1842)

* refactor: migration idp api

* chore: update

api/v1/user.go

@@ -0,0 +1,25 @@
+package v1
+
+// Role is the type of a role.
+type Role string
+
+const (
+	// Host is the HOST role.
+	Host Role = "HOST"
+	// Admin is the ADMIN role.
+	Admin Role = "ADMIN"
+	// NormalUser is the USER role.
+	NormalUser Role = "USER"
+)
+
+func (e Role) String() string {
+	switch e {
+	case Host:
+		return "HOST"
+	case Admin:
+		return "ADMIN"
+	case NormalUser:
+		return "USER"
+	}
+	return "USER"
+}