Bootstrap was creating password_hash + api_token but leaving
subsonic_password nil, which meant Subsonic clients (Feishin, Symfonium)
got ErrTokenNotSupported on t+s auth — the server had no plaintext to
hash against. Mirror the bootstrap password into subsonic_password so
the admin can sign in to Subsonic clients with the same credential
printed on first boot. Plaintext at rest is the cost of Subsonic's
legacy auth; matches Navidrome's posture.
Also folds in the local dev compose tweaks: dedicated bridge network
with postgres unpublished from the host, and a bind-mount aimed at the
operator's real library path.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Dev stack can now `docker compose up --build` with no extra env: mounts
./music read-only, enables startup scan, and bootstraps admin with a
generated password printed to stderr on first boot.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>