script/check, cibuild, docker, lint, test, setup and install-precommit
are now the copies from sneak/prompts main, unchanged: lint and test
each build their Dockerfile phase with --no-cache, and cibuild runs
bootstrap and check before building the image. The lint phase runs
golangci-lint from the image REPO_POLICIES.md names, with libvips-dev
from apt-get; the test phase runs the tests with a 90-second timeout;
the build stage depends on both. Dockerfile.lint and CHECK_EPOCH are
gone, the formatting check stays on the host, and make docker-versioned
and docker-test call the scripts. Without VERSION the stage that
compiles still takes the version from git describe, per issue 166.
Model: opus-5-5