broadinstitute / viral-phylo / 21548723353

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Fix: Use > for partial stop coordinates in column 2 (#72)

Per NCBI feature table spec, '<' must only appear in column 1 (start)
and '>' must only appear in column 2 (stop), regardless of strand.

The negative strand clipping logic incorrectly used '<' for clipped
stop positions, causing table2asn to reject the output with:
"Bad feature interval" and "Feature bad start and/or stop" errors.

Changes:
- Fix ncbi.py line 115: end.location_operator = '>' (was '<')
- Add test case for negative strand partial stop coordinate
- Add test data in negative_strand_partial/ directory

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

225 of 559 branches covered (40.25%)

Branch coverage included in aggregate %.

1254 of 2666 relevant lines covered (47.04%)

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