Sample Curator v0.1.7

v0.1.7 — runtime ML deps install (vault-347l)

Phase 1 (deps detection):
- importlib.util.find_spec detection in sidecar
- Frontend Dependencies card with extras + missing modules

Phase 2 (install workflow + nested-sidecar bridge):
- Bundled uv binary in .app for runtime venv management
- deps_install / deps_uninstall Tauri commands
- ml_worker.py JSON-RPC subprocess
- WorkerManager + delegation for CLAP/Whisper/Demucs/LLM-HF
- Frontend Install UI with live progress modal
- 118 sidecar tests passing