- app-classes: DiagramRenderController by-route endpoint no longer depends on the agent registry; points at findLatestContentHashForAppRoute and cross-refs the exchange viewer's content-hash path. - core-classes: document the new DiagramStore method and note why the agent-scoped findContentHashForRoute stays for the ingest path. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>