fix(ci): frontend SSH init should test UI_HOST not WS_HOST

Also bump ConnectTimeout to 5s for the frontend SSH init.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/publish.yml

@@ -19,12 +19,12 @@ jobs:
           npm ci
           npm run build
 
-      - name: Set up SSH
+      - name: SSH init
         run: |
           mkdir -p ~/.ssh
           echo "${PUBLISH_KEY}" > ~/.ssh/id_ed25519
           chmod 600 ~/.ssh/id_ed25519
-          ssh -o ConnectTimeout=1 -o StrictHostKeyChecking=accept-new gitea_ci@${{ vars.WS_HOST }} 'echo $(hostname -f) connection succeeded'
+          ssh -o ConnectTimeout=5 -o StrictHostKeyChecking=accept-new gitea_ci@${{ vars.UI_HOST }} 'echo $(hostname -f) connection succeeded'
 
       - name: Deploy static files to UI host
         run: |