Store application_name in route_diagrams at ingestion time (V7 migration), resolve from agent registry same as ExecutionController. Move findProcessorRouteMapping from ExecutionStore to DiagramStore using a JSONB query that extracts node IDs directly from stored RouteGraph definitions. This makes the mapping available as soon as diagrams are sent, before any executions are recorded. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>