The 1.5.0 API cutover removed the legacy `/api` mount, but the
`dashcaddy_auth` Caddy snippet generated by the installer still called
`uri /api/auth/gate/{args[0]}`. forward_auth then hit the notFoundHandler
and propagated a DC-404 to the browser instead of a 401-redirect to the
login flow (seen on requests.sami).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Full codebase including API server (32 modules + routes), dashboard frontend,
DashCA certificate distribution, installer script, and deployment skills.
