* Support preview images embedded in safetensors metadata * Add unit test for safetensors embedded image previews
* Move model manager routes * Add experiment model manager api * Fix cache causing returns to be empty * Fix unable to compare sub-dir caches * Skip non-existent folders * Add model preview * Revert 'Move model manager routes' * move model_filemanager.py to app/ * Update model_manager.py 3.8 compatibility ---------