v0.7.0

• Microphones now use CPAL stable device IDs, keep equal labels distinct, show available metadata, preserve disconnected choices with an explicit fallback, and test the exact selected input.
• Linux x86_64 users can install complete Whisper or Parakeet setups inside Echo. Managed components use resumable downloads, SHA-256, bounded archive extraction, immutable activation records, Verify, Repair, and managed-only removal.
• System runtimes and existing cache files remain external, visible, and untouched. Healthy managed components take precedence while corrupt managed components fall back to those external inputs.
• Recommended setup chooses a multilingual Whisper model from detected memory and installs its runtime and VAD. Downloads expose cumulative disk needs, progress, cancellation, resume, retry, repair, verification, and removal without activating partial or corrupt files.