[ian-sift]

Summary

• Add leave_run_open to CreateDataImportFromUrl and CreateDataImportFromUpload. Omitting it keeps the current behavior: a finished import stops its run and fires run-stop automations.
• import_from_path and Run.import_data take leave_run_open (default false). Set it when more files are coming, then call run.stop() after the last import.
• sift-cli import accepts --leave-run-open for CSV, TDMS, HDF5, ULog, MCAP, and Parquet.

Test plan

• Python data-import unit tests, including the flag forwarded onto the upload request
• sift-cli CSV import request tests, including leave_run_open set on the request
• Import two files into one run with the flag on the first and confirm the run stays open until the second import finishes

[github-actions]

Python docs preview: https://sift-stack.github.io/sift/python/pr-848/

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