* Frontend Manager: avoid redundant gh calls for static versions
* actually, removing old tmpdir isn't needed
I tested - downloader code handles this case well already
(also rmdir was wrong func anyway, needed shutil.rmtree if it had content)
* add code comment
* add internal /folder_paths route
returns a json maps of folder paths
* (minor) format download_models.py
* initial folder path input on download api
* actually, require folder_path and clean up some code
* partial tests update
* fix & logging
* also download to a tmp file not the live file
to avoid compounding errors from network failure
* update tests again
* test tweaks
* workaround the first tests blocker
* fix file handling in tests
* rewrite test for create_model_path
* minor doc fix
* avoid 'mock_directory'
use temp dir to avoid accidental fs pollution from tests
* add 'is_default' to model paths config
including impl and doc in example file
* update weirdly overspecific test expectations
* oh there's two
* sigh
'_target' allows secrets to pass through, and we're just using the secret that allows uploading to the dashboard and are manually vetting PRs before running this workflow anyway
