Full stack ATOM backend + AIMONEYFLOW clients (port 7860) (part 6)

Fix hung Next build: SSG timeout + fast-fail backend URL

Fix npm install: ignore-scripts + no postinstall

Fix Dockerfile: reuse node uid 1000 (GID conflict)

Deploy Next.js Command Center (standalone, port 7860) (part 2)

Initial Docker app (FastAPI on 7860)