chore: move the release scripts to a cl-release workspace package

[pviti]

The release scripts become a private workspace package, @commercelayer/cli-release (packages/release), on the model of cli-generator.

Changes

• cl-release <command>. Commands version, tag, try, labels, resolve, notes, publish and manifest, one module each in src/commands, plus shared helpers in src/workspace.ts.
  • TypeScript run through tsx (bin/cl-release.mjs), no build step.
  • Options parsed with node:util parseArgs; every command has --help, and an unknown option is an error.
  • Runs at the workspace root wherever it is started from.
• Root scripts. Unchanged for the user (pnpm release:version, release:tag, release:config, release:publish, release:try); they now call cl-release. The release libraries move from the root devDependencies to the package.
• Workflows. They call pnpm exec cl-release resolve|notes|publish|manifest|labels. release.yml installs @commercelayer/cli-monorepo..., so it also gets cl-release and its dependencies.
• Test helpers in packages/test-utils.
  • oclif-root.cjs: the 17 .mocharc.json now point to ../../packages/test-utils/oclif-root.cjs.
  • bin/live-sweep.mjs: used by integration.yml and mentioned in the README.
• check-packages stays in scripts/ and no longer imports from the removed scripts/lib.
• Unit tests (20) for the pure parts: tag resolution, previous release, dependency order, bump, the dependencies added to a release and to a publish, command-surface diff, maintenance note, labeler, release:try selection.

Equivalence check

I ran the old scripts and cl-release on the same tree (origin/monorepo) and compared their outputs and exit codes. All identical:

• version --base monorepo --yes --dry-run (18 packages);
• tag --base monorepo --dry-run;
• resolve on valid tags (tags-v2.2.6, cli-v6.9.9, orders-v5.7.0) and invalid ones (prerelease, mismatch, unknown folder, private package, no prefix);
• notes on the same tags, also with an explicit previous tag;
• publish --dry-run: error for a dependency without a tag, and a full run with cli-core and cli-ux published first;
• manifest (--warn, --against, packages without commands, private, missing).

labels changes only the header of .github/labeler.yml, and release:try tags installs and runs the sandbox CLI.

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