Feature Request: `workspace update` should generate commands when workspace config `last_applied_delivery` is "commands" or "both"

[chadsr]

Currently when running openspec workspace update, the following warning is shown if last_applied_delivery is set to anything other than 'skills':
Workspace setup installs skills only; workspace command generation is not part of this slice.

Is there a reason why the workspace update command does not update commands as well as skills?

If a workspace was previously configured (and recorded) with last_applied_delivery: "commands" or "both", it would be reasonable and more convenient for workspace update to respect that local recorded preference and generate/update commands.