- Move billing routes from /billing to /settings/billing
- Add billing translations (en/pt-br)
- Update billing/Index.vue to use $t() for all strings
- Fix all controllers using route('dashboard') to use route('calendar') or route('accounts')
- Replace ->with('error', ...) pattern with session()->flash('flash.banner', ...)
- Add self-hosted mode support for hasActiveSubscription() and workspace methods
- Add flash translations for account connection errors
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
