- Drop the app-level "/" redirect so the FastAPI app no longer claims the
domain root; it stays scoped to THERMOGRAPH_BASE (/thermograph). Root now
404s at the app, leaving it for another service behind the proxy.
- Caddyfile: serve a static portfolio at / and reverse-proxy /thermograph* to
uvicorn, on emigriffith.dev with automatic Let's Encrypt TLS.
- Default THERMOGRAPH_BASE to /thermograph in the env example to match.
