751cac7 switched the base compose file to an external named volume
(bellsystems-postgres-data) to dodge a WSL2/Docker Desktop bind-mount bug.
That volume only exists on the Windows dev machine: on the VPS, where the
push auto-deploys via deploy-host.sh, `docker compose up` would fail on the
missing external volume (or, if created, start Postgres on an empty
database while the real data sat unused in ./data/postgres).
The base file goes back to the ./data/postgres bind mount the server has
always used (Linux has no such bug). The named volume now lives in
docker-compose.override.yml, which Compose loads automatically, is
gitignored, and is created from docker-compose.override.example.yml on
Windows machines only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
