New bin/infra-net walks every project .infra.yaml (convention:infra_manifest),
validates schema + host∈mesh-hosts (alias-aware) + port collisions, prints the
live infra-net and writes data/infra-net.json (gitignored, non-destructive — does
not touch the services map). Caught prospector's stale host name on first run.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
