- Implemented new API endpoints for multi-table Excel upload and auto-detection of table chains.
- The GET endpoint `/api/data/multi-table/auto-detect` allows automatic detection of foreign key relationships based on the provided root table.
- The POST endpoint `/api/data/multi-table/upload` handles the upload of multi-table data, including validation and logging of the upload process.
- Updated the frontend to include options for multi-table Excel upload in the button configuration panel and integrated the corresponding action handler.
This feature enhances the data management capabilities by allowing users to upload and manage data across multiple related tables efficiently.