A custom domain could stay on a 404 while everything looked fine on the Pierrr side

v0.28.2-beta

A custom domain could stay on a 404 while everything looked fine on the Pierrr side. On Pierrr infrastructure the certificate was issued and the configuration correctly generated, but written to a location the public reverse proxy did not read: the domain was therefore never served. The location is now shared between the agent and the proxy, and an automatic guard prevents this divergence from reappearing.