feat: LAD A-Team CIS Compliance Report, React SPA, i18n, report management, explorer UX fixes

- Professional Oracle-format compliance report with RAG remediation from ADB vector store
- React 19 SPA at /app/ (16 pages, TypeScript, Vite, Zustand, i18n pt/en 625 keys)
- Report delete endpoint, embed individual report files into vector store
- Terraform ZIP download (client-side, pure JS)
- Explorer silent polling during start/stop (no flickering)
- HTML report and compliance report sections start minimized
- Token auth fix for compliance report CSV download links

docker-compose.yml

@@ -26,6 +26,7 @@ services:
     restart: unless-stopped
     volumes:
       - ./frontend/index.html:/usr/share/nginx/html/index.html:ro
+      - ./frontend-react/dist:/usr/share/nginx/html/app:ro
       - ./nginx/default.conf:/etc/nginx/conf.d/default.conf:ro
     ports:
       - "${PORT:-8080}:80"