- Rename project from htpc-download-box to valhalla-lab (directory + dc alias)
- Remove portainer and watchtower from compose; run standalone outside managed stack
to prevent self-termination during Portainer-triggered redeployments
- Add portainer_proxy external network shared by caddy and standalone portainer
so Caddy can route to Portainer via Docker DNS without them being in the same stack
- Carve out POST /api/stacks/webhooks/* in Caddyfile so Portainer webhooks can
reach through the internal_only guard without exposing the full UI
- Update apply-compose.ps1 and sync-prod.ps1 paths from htpc-download-box to valhalla-lab
Mirror the three production files (docker-compose.yml, .env, Caddyfile) that live on valhalla, plus the push/pull PowerShell scripts, CLAUDE.md, .gitignore/.gitattributes, and .claude/skills for ssh/apply/sync.