Replace the named volumes mongo-data and work-data with bind mounts to
./volumes/mongo and ./volumes/work so all runtime state lives under the repo
tree. Existing data was migrated; the old named volumes were removed. The
${HOME}/.claude host-credential mounts are intentionally left as-is (must not
live in the repo). Added /volumes/ to .gitignore.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>