Extraction coordinator (/backend/app/services/extraction_coordinator.py)

The Extraction coordinator is part of the workflow that triggers AI Summary Generation after file extraction completes. BatchProcessor uses ExtractionCoordinator to coordinate data extraction in the pipeline. ExtractionCoordinator uses PrepareDataSkill to process data after extraction across CPU and GPU services. The extraction coordinator service depends on the DuckDB service for managing extracted text chunks and related data. BatchProcessor orchestrates the full pipeline that involves ExtractionCoordinator for extraction tasks. ExtractionCoordinator coordinates extraction processes that are prioritized by FilePrioritizer.