1de3e94990
The schema declared sources as an array of objects, which correx's flat JsonSchema model can't represent (JsonSchemaProperty has no nested properties). The strict config loader rejected it at startup, silently disabling the source_dossier artifact kind. Flatten sources to an array of strings (URL-prefixed per-source notes), update the gather prompt to match, and add ResearchSchemaLoadTest to guard every shipped research schema against the strict loader.