The linter runs only inside the pinned golangci-lint container image
(Dockerfile.lint, and the Dockerfile lint stage). Remove the host
install that was still left behind: script/bootstrap's version and
sha256 pins, the release download, the ensure/verify helpers, and the
curl dependency they were the only user of; and drop golangci-lint from
the nix-shell package lists in the Makefile and script/test, which build
and test but never lint.
Model: opus-4-8
Accumulating milestone branch. One squashed commit per closed issue; `next` is kept green and mergeable to `main` at any time without notice.
Landed so far:
- `chore: update golangci-lint to v2.12.2 with canonical config` (#54) — canonical v2-schema `.golangci.yml`, pins bumped in `Dockerfile` and `script/bootstrap`, tree at `0 issues.`. Three behaviour deltas are recorded in that PR's body: `Cache.StoreVariant` takes a context, `MetadataStorage.Store` no longer leaks temp files on failure, and the `signing_key` too-short error text gained a `value too short:` prefix.
Sequencing for the milestone is tracked in #103.
Reviewed-on: #105
Co-authored-by: clawbot <clawbot@noreply.example.org>