Per-atom golden sets (`<atom>/{inputs,expected}/` + scoring, adversarial injection fixtures included) land with [erp#39](https://gitea.arcodange.lab/arcodange-org/erp/issues/39), per the PRD [golden datasets](https://gitea.arcodange.lab/arcodange-org/factory/src/branch/main/vibe/PRD/ai-back-office/qa-strategy.md#golden-datasets).