feat: add option to OIDC client to require re-authentication (#747)

Co-authored-by: Kyle Mendell <kmendell@ofkm.us>
Co-authored-by: Elias Schneider <login@eliasschneider.com>

backend/internal/common/errors.go

@@ -350,6 +350,15 @@ func (e *OidcAuthorizationPendingError) HttpStatusCode() int {
 	return http.StatusBadRequest
 }
 
+type ReauthenticationRequiredError struct{}
+
+func (e *ReauthenticationRequiredError) Error() string {
+	return "reauthentication required"
+}
+func (e *ReauthenticationRequiredError) HttpStatusCode() int {
+	return http.StatusUnauthorized
+}
+
 type OpenSignupDisabledError struct{}
 
 func (e *OpenSignupDisabledError) Error() string {