- Implement per-namespace resume points (dict mapping namespace -> (pageid, revid))
to correctly handle interleaved dump ordering in partitioned output
- Extract resume functionality to dedicated resume.py module
- Add graceful shutdown handling via shutdown_requested flag (CLI-level only)
- Use lazy ParquetWriter creation to avoid empty files on early exit
- Refactor writing logic to _write_batch() helper method
- Simplify control flow by replacing continue statements with should_write flag
577ddc87f5