ci: add test-run step to capture app startup errors before restart

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -79,6 +79,11 @@ jobs:
         run: |
           cd /opt/zhixi/backend && npx prisma generate
 
+      - name: Test-run API to capture startup errors
+        run: |
+          cd /opt/zhixi/backend
+          timeout 5 node dist/main.js 2>&1 || true
+
       - name: Restart API service
         run: |
           sudo systemctl restart zhixi-api