Get auth error message for display
Handle authentication retry logic
Use HandleNoRolesError.
Handle no roles error by showing validation banner (if validation service is provided)
Use InitializeGraphQL.
Initialize GraphQL client with authentication token and refresh callback
Check if error is related to missing user roles
Navigate to the initial route after a successful login. A deep link is replayed
through the router; a bare / is left to the router's default route (the Home app).
Unused since the Kendo drawer was removed; kept so existing callers
(AuthShellComponent) and the deprecated alias keep compiling.
Use RunValidationChecks.
Run startup validation checks (if validation service is provided)
Use ValidateUserAccess.
Refresh shared data and validate user access
Deprecated
Use GetAuthErrorMessage.