ci: raw app output, 5s timeout, show exit code

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

.gitea/workflows/deploy.yml

@@ -85,10 +85,11 @@ jobs:
         run: |
           cd /opt/zhixi/backend && npx prisma generate
 
-      - name: Test-run app in foreground
+      - name: Run app directly (5s max, raw output)
         run: |
           cd /opt/zhixi/backend
-          timeout 8 node dist/main.js 2>&1 | tail -30 || true
+          timeout 5 node dist/main.js 2>&1
+          echo "[EXIT:$?]"
 
       - name: Restart API service
         run: |