Two gaps behind the same near-miss.
1. **No spec covered hermes.franksdank.cloud** — the one guarded vhost whose
upstream is a host address (`reverse_proxy 192.168.0.143:8787`) rather than a
container name, because its service is host-networked. That is how a
loopback-only bind could take the vhost down with a 502 and leave every gate
green. tests/e2e/specs/17-hermes-vhost.spec.ts asserts what a dead upstream
violates: no 5xx through the guard chain, no Caddy error page, and no app
bytes to an unauthenticated raw client. It does not assert SSO-silence, since
this app has its own password login.
2. **Specs are matched by number prefix, not globbed.** A spec file whose prefix
is in no project silently never runs — which is exactly what happened to the
new one until it was registered. The prefix is registered now, the comment in
playwright.config.ts says why, and tests/e2e_scaffold.bats fails if any
spec file matches no project.
The hermes-webui seam assertion is corrected too: it asserted the loopback bind
I wrongly imposed, and now asserts the real contract — the unit's bind must serve
the address the Caddyfile fronts it on.