10x-cli: download, use, update

Read the bundled compatibility and channel reference before issuing commands. It contains the pinned runner setup, version checks, both helper channels and ownership safeguards. Commands use the released lesson-scoped skill filter; verify the actual selected package and content before using it. A local build or source membership is not proof that a feature has shipped.

The next CLI release also provides project-only bundled installation through 10x helpers install --tool <chosen-profile>. This command is unreleased and absent from the 1.21.0/1.22.0 master baselines: check the actual runner's helpers --help first. Follow Bundled public copies in the local reference for complete files, explicit targets and conflict handling; keep the existing pinned public route when the runner does not support it.

Environment