Adds OPENBRAIN__TRUTH__ENABLED=true to the .env upsert list in the
deploy bootstrap step so the background truth scoring worker runs
automatically after every deployment.
- Run cargo test --lib in CI checks to execute PLN/ECAN/scorer unit tests
- Add e2e_truth test suite to VPS e2e test step
- Enable OPENBRAIN__TRUTH__ENABLED for e2e testing