Voyager 1 retired: a push to master no longer deploys

Its database was deleted on 2026-10-09; a deploy would start it on an
empty one. The deploy job is removed (tests still run), and homelab's
~/bin/deploy-usenet-indexer refuses voyager 1 deploys (voyager 2 deploys
from branch rebuild with deploy-rebuild).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/deploy.yaml

@@ -1,9 +1,8 @@
-# Tests every push; a push to master that passes is deployed to homelab.
-#
-# Deploying: the job SSHes to homelab with DEPLOY_SSH_KEY. That key may only
-# run ~/bin/deploy-usenet-indexer (a forced command in authorized_keys),
-# which fetches the commit from this repo, builds the image, runs the
-# migrations and recreates the app services (never postgres or redis).
+# Tests every push. Voyager 1 (this branch) is retired since 2026-10-11: its
+# database was deleted on 2026-10-09, and a push to master no longer deploys.
+# Voyager 2 (branch rebuild) has its own workflow and deploy
+# (deploy/README.md there); homelab's ~/bin/deploy-usenet-indexer refuses
+# voyager 1 deploys too.
 name: Test and deploy
 
 on:
@@ -63,19 +62,3 @@ jobs:
       - name: Test
         run: node ace test
 
-  deploy:
-    needs: test
-    if: github.ref == 'refs/heads/master'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to homelab
-        env:
-          DEPLOY_SSH_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
-          DEPLOY_KNOWN_HOSTS: ${{ secrets.DEPLOY_KNOWN_HOSTS }}
-        run: |
-          install -m 700 -d ~/.ssh
-          printf '%s\n' "$DEPLOY_SSH_KEY" > ~/.ssh/deploy_key
-          chmod 600 ~/.ssh/deploy_key
-          printf '%s\n' "$DEPLOY_KNOWN_HOSTS" > ~/.ssh/known_hosts
-          ssh -i ~/.ssh/deploy_key -o IdentitiesOnly=yes -o BatchMode=yes \
-            daan@10.206.0.175 "deploy ${{ github.sha }}"