pub async fn bootstrap_default_groups(db: &Db) -> Result<()>Expand description
Insert each default group with ON CONFLICT (name) DO NOTHING.
Idempotent across restarts and against admin-created groups —
duplicates by name simply skip without bumping any state.
Gated by RUSTIO_DEMO_MODE=1. Without the flag this is a no-op
so production deploys never accidentally seed demo data.