pub fn run_demo(dir: &Path) -> Result<DemoOutcome, CliError>Expand description
Build the deterministic demo dataset in an empty dir.
Refuses if dir already exists and is not empty. Ingests 10 Orgs, 20
Projects, 30 People via SharedDb / ingest_json (auto-FK on *_id)
then declares skill_fit plus the three Predicates II rules.