This commit introduces a new /core:clean command to clean up generated files, caches, and build artifacts.
The command provides the following options:
- /core:clean: Cleans all caches and build artifacts.
- /core:clean --cache: Cleans caches only.
- /core:clean --deps: Performs a dry-run for dependency cleanup.
- /core:clean --deps --force: Deletes dependency directories after a confirmation prompt.
- /core:clean --dry-run: Shows what would be deleted without performing any actions.
The implementation includes safety features such as a "dry-run by default" for dependency cleaning and a confirmation prompt for destructive operations.
