Adds deploy/fly/seed.sql: a pruning, idempotent demo dataset (devices,
notifications, device events) spanning every workflow state for App Store
reviewers, with timestamps relative to now so it always looks fresh. The
flyImage entrypoint applies it on each boot when OOTT_SEED is set: it starts
the backend so migrations create the schema, waits for the tables, then prunes
and reloads. push_tokens is preserved.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
