• LoginForm / RegisterForm now initialise `status` directly from localStorage,
avoiding a post-mount state update that caused a UI flash between OAuth
options and email/username forms.
• Move Turnstile configuration into a dedicated effect that depends on
`status`, ensuring setState is not called during rendering.
• Remove unused `setStatus` setter to resolve ESLint “declared but never read”
warnings.
• Minor refactors: reorder hooks, de-duplicate navigate/context variables and
streamline state destructuring for improved readability.
