Simplify CI/CD to deploy static frontend only

Remove server deployment, dependency install, and systemd restart.
The app connects directly to NocoDB from the browser.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -21,10 +21,3 @@ jobs:
       - name: Deploy to server
         run: |
           rsync -a --delete build/ /opt/apps/hihala-dashboard/build/
-          rsync -a server/ /opt/apps/hihala-dashboard/server/ \
-            --exclude node_modules --exclude .env
-      
-      - name: Install deps & restart
-        run: |
-          cd /opt/apps/hihala-dashboard/server && npm ci --production
-          sudo systemctl restart hihala-dashboard