- Rename host alias matt-strix -> strix-halo (removes third-party name)
- Move host URLs to env-var lookup (OLLAMA_*_URL), drop hardcoded IPs
from harness source. Defaults: steel141 keeps localhost; pve197 and
strix-halo require their env var to be set before use.
- Update doc: remove the Tailscale IP and LAN-IP references, describe
access paths without specific addresses.
- Rename runs/matt-strix -> runs/strix-halo and patch the host field
in each JSON.
Harness still functional for the original author (set the env vars)
and safe to share without leaking routable addresses.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>