Learn uses 64-gua card grid; liuyao/bazi/combined use two input cards plus sticky right AI panel; add manifest, service worker, and install prompt.
Co-authored-by: Cursor <cursoragent@cursor.com>
ResultAI had h-0 collapsing output; add X-Accel-Buffering no, clearer fetch errors, and NGINX.md for gate proxy setup.
Co-authored-by: Cursor <cursoragent@cursor.com>