- infra/Dockerfile.runner-base: new Ubuntu 24.04 image with Python 3.12
and Node 22 LTS pre-installed, tagged py3.12-node22. Eliminates the
~3-4 min deadsnakes PPA install that ran on every test job.
- infra/runner-compose.yml: update ubuntu-latest label to use
runner-base:py3.12-node22 instead of node:20-bullseye.
- .forgejo/workflows/ci.yml: remove Python 3.12 install steps (now in
base image), add actions/cache for pip keyed on pyproject.toml hash,
bump node-version 20 → 22.
- Dockerfile: bump frontend build stage node:20-alpine → node:22-alpine.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Bryan Van Deusen
dc03d71898