docs: update extractor-start-button-flow.md to v1.3
- Add file merging functionality (ExcelParser merges batch files) - Add database auto-import feature (DataImportService) - Update architecture diagrams to include ExtractorCore separation - Update sequence diagram with 76-step workflow - Add DataImportService and DiscreteMaterialPlanDAO to flow - Document ImportResult type and import statistics - Update error handling to include merge and import errors - Add temporary file cleanup after merging
This commit is contained in: