Factory echo
Phase 4 — Auth.js (GitHub) gates the Echo PoC. Signed-in browsers call https://api.printerstreak.com/v1/echo (preview → shared dev API; production → prod API).
Sign in with GitHub to POST to the API.
Phase 4 — Auth.js (GitHub) gates the Echo PoC. Signed-in browsers call https://api.printerstreak.com/v1/echo (preview → shared dev API; production → prod API).
Sign in with GitHub to POST to the API.