Make the website deploy report its own failures

The deploy was the one pipeline with no failure notification. It either worked or
you found out by noticing the site was stale — the same shape as the off-site
backup before today.

alert.js now takes CHECKLIST_ENV_FILE and CHECKLIST_NODE_MODULES, because the
deploy job runs in a container that has the repo but no server/.env and no
node_modules; both live on the NAS at the mounted deploy directory.

What this still does not catch, and the reason it is written down in the workflow:
a runner that wedges. Today the NAS runner claimed run 7, executed none of its six
steps, and Gitea timed it out fifteen minutes later — every step was marked failed
without one having run, so no in-job step could have reported it. The container
said "Up 2 hours" throughout and admitted on restart that it had been holding the
job. A stuck runner looks exactly like a slow one, and catching it needs something
watching from outside the run.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -88,3 +88,28 @@ jobs:
           docker ps --filter name=recurring-checklist --format '{{.Names}} {{.Status}}'
           docker logs --tail 30 recurring-checklist
           exit 1
+
+      - name: Tell Christian the deploy broke
+        # The web deploy had no failure notification at all until now, which is the same
+        # silent-failure shape as the backup: it either worked or you found out by looking.
+        #
+        # NOT covered by this: a runner that wedges. On 2026-09-24 the NAS runner claimed
+        # this job, ran none of its six steps, and Gitea timed it out — no step ran, so no
+        # step could report. Catching that needs something watching from outside the run.
+        if: failure()
+        run: |
+          D=/volume2/docker/recurring-checklist
+          BODY_FILE="$(mktemp)"
+          cat > "$BODY_FILE" <<MSG
+          A push to main failed to deploy the website to the NAS.
+
+          The running container was left alone — the deploy recreates it in place and only
+          after the files are copied, so the previous version should still be serving. Worth
+          confirming: https://check.watersmedia.org
+
+          Full log:
+          http://chronicles-ab.waterschurch.org:3000/christian/recurring-checklist/actions
+          MSG
+          CHECKLIST_ENV_FILE="$D/.env" CHECKLIST_NODE_MODULES="$D/node_modules" \
+            node scripts/alert.js "Website deploy FAILED" "$(cat "$BODY_FILE")" || true
+          rm -f "$BODY_FILE"