Feature request: Ability to purge unused cache when building

Description:
It would be very helpful to have a feature or command to easily remove unused cache. Currently, there doesn't seem to be a straightforward way to clear cache that is no longer in use, which can lead to unnecessary storage consumption over time.

Suggestion:
- A function in the CLI to clean up cache that hasn’t been accessed for a certain period or is no longer referenced.
- An option to manually trigger the cleanup of unused cache.

Rationale:
This would help users keep their environments clean and avoid wasting storage space, especially in projects with large amounts of cached data.