vf-setup

Set up or check the user's voice home.

1. Read ../voice-forge/SKILL.md (the voice-forge skill next to this one). If that path does not resolve, use the installed voice-forge skill by name.
2. Then read ../voice-forge/references/setup.md and follow it step by step. The scripts are in ../voice-forge/scripts/.
3. If a voice home already exists, run python3 ../voice-forge/scripts/vf.py status first and show the user where it is, whether it is linked to a private GitHub repo, and whether auto push is on. Then offer only the steps that are missing.