linuxserver/bookstack refuses to start without APP_KEY:
'The application key is missing, halting init!'
nginx never bound :80, so caddy -> bookstack:80 -> connection refused -> 502.
Key generated via 'docker run --rm --entrypoint /bin/bash
lscr.io/linuxserver/bookstack:latest appkey' on valhalla. Stored in
stacks/dev/.env per per-stack secrets policy; do NOT rotate without
invalidating existing sessions.
Add stacks/<domain>/ compose + env for the 11 target stacks (proxy, media,
foundry, owncloud, resume, famapp, authentik, notify, monitoring, remote, dev).
Each app stack joins a shared external `edge` network for Caddy and keeps its
DB/cache co-located (no shared backing services). All named volumes convert to
tiered bind mounts: DBs/configs -> /config (SSD), blobs/repos/registry ->
/storage1/labdata (ZFS). Gitea repos+LFS split to ZFS.
Move Vault into the management plane (portainer-compose.yml) and add the shared
`edge` network there. apply-compose.ps1 -Portainer now also pushes vault.hcl.
Additive only: root docker-compose.yml/.env/Caddyfile untouched, so the live
monolith is unchanged. Live cutover (Phase B) is next.
ginnoir