`volta list pnpm` does not work when installed as package

[felipecrs]

❯ volta install pnpm
success: installed [email protected] with executables: pnpm, pnpx

❯ volta list
⚡️ Currently active tools:

    Node: v22.16.0 (default)
    npm: v11.4.1 (default)
    Yarn: v4.9.2 (default)
    Tool binaries available:
        devcontainer (default)
        pnpm, pnpx (default)

See options for more detailed reports by running `volta list --help`.

❯ volta list pnpm
⚡️ No pnpm versions installed.

You can install a pnpm version by running `volta install pnpm`.
See `volta help install` for details and more options.

[mkenigs]

@edolstra could you take another look at this?

[tomberek]

optimistic merging: additional tweaks to message can be in follow up