- Add scripts/build-asahi-rootfs.sh: downloads upstream Fedora Asahi
Remix Server, injects lab firstboot script + systemd service + SSH
keys, repackages with installer_data.json that adds LVM Data partition
- Bastion serves built artifacts at /asahi/repo/* via fastify-static
- installer_data.json prefers built config, falls back to minimal
- Fix __dirname crash in ESM module (use import.meta.url)
- Fix smoke test timeout (was crashing due to __dirname)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>