scott d9a540f8e8 Add registry layer cache and fix Dockerfile cache order ...

- CI: cache-from/cache-to with mode=max stores all intermediate layers
  in the registry so subsequent builds skip unchanged layers (especially
  the slow ROCm PyTorch download)
- Dockerfile: move COPY perth_stub.py below pip install layers so a
  stub change doesn't bust the cache for everything above it

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-05 11:53:32 -04:00

..

build.yml

Add registry layer cache and fix Dockerfile cache order

2026-04-05 11:53:32 -04:00