- ExecutionController: POST /api/v1/data/executions (single or array)
- DiagramController: POST /api/v1/data/diagrams (single or array)
- MetricsController: POST /api/v1/data/metrics (array)
- All return 202 Accepted or 503 with Retry-After when buffer full
- Fix duplicate IngestionConfig bean (remove @Configuration, use @EnableConfigurationProperties)
- Fix BackpressureIT timing by using batch POST and 60s flush interval
- All 11 integration tests green
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>