Vite env vars must be present during build — VITE_SENTRY_DSN was likely
undefined in Railway's build step, causing Sentry to silently not init.
DSN is a public client key (shipped in every browser bundle), not a secret.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- ErrorBoundary: use Sentry.ErrorBoundary with crash feedback dialog
- RouteError: capture route errors in Sentry (skip chunk load errors)
- User context: set Sentry user on login (frontend + backend)
- Backend: enable profiling (profiles_sample_rate)
- Frontend: add feedback integration, lower replay rate to conserve quota
- Add temporary verification message for production validation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
