The rules/indexes deploy step already existed here, gated on `command -v
firebase` over SSH on the deploy VM. It never found one (no node on the
VM), so it silently warned-and-skipped on every single deploy for weeks —
PR #124 even auto-closed #13/#51 as if this were fixed, when it wasn't.
New standalone deploy-firestore-rules job runs on the Gitea runner itself
(always has node), authenticated via a new FIREBASE_TOKEN secret (from
`firebase login:ci`) instead of anything pre-installed on the VM. It's
independent of the deploy job's health-check/rollback chain on purpose —
a rules deploy failure has nothing to roll back and must not trigger that
logic. notify-failure now distinguishes which job actually failed so the
Discord alert doesn't misreport "production is unchanged" when the app
deployed fine and only the rules push failed.
Needs FIREBASE_TOKEN added as a Gitea Actions secret before this actually
runs — it will fail loudly (by design) until then, which is the whole
point: a loud failure beats a silent skip.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>