Made record property nullable (?WorkOrder) and mount() calls find() +
explicit abort(404) instead of findOrFail() (which pass-through the
model's tenant-scoped scope but doesn't clarify the 404 source).
Added Feature test that boots the dashboard route via tenant subdomain
(psauto.service.mir.md-style host), authenticates a user, and verifies
the page returns non-404, non-500. Test passes both with and without
route:cache, so the routing itself is fine — user-side 404 is most
likely browser cache or CDN cache.
307/307 tests pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
