bartulem/usv-playpen: usv-playpen v0.9.11

simplify SLEAP conversion, update HPSS, and fix vocalocator-ssl checkpoint compatibility

• drop sleap_venv_path from anipose_operations.py, preprocess_data.py CLI, process_data_step_two_inference_global.sh, and processing_settings.json
• always use uvx --from sleap[nn] (platform-aware) instead of sourcing a venv, unifying GUI and CLI/cluster code paths
• switch subprocess.Popen from shell=True string to shell=False list args
• fix missing closing quote in Darwin sleap-convert command
• HPSS inference now runs through the usv-playpen venv (source + uv sync)
• add mkdir -p for audio/hpss directory in hpss_inference_global.sh
• write animal_id dataset to dset.h5 at creation time in prepare_for_vocalocator, derived from tracks.shape[1]; removes need for external convenience script
• add animal_ids parameter to write_to_h5 in assign_vocalizations_utils.py