Adds a new skill covering polars-bio (v0.26.0), a high-performance library
for genomic interval arithmetic and file I/O built on Polars, Arrow, and
DataFusion. All code examples verified against the actual API at runtime.
SKILL.md covers overlap, nearest, merge, coverage, complement, subtract,
cluster, count_overlaps operations plus read/scan/write/sink for BED, VCF,
BAM, CRAM, GFF, GTF, FASTA, FASTQ, SAM, and Hi-C pairs formats.
References: interval_operations, file_io, sql_processing, pileup_operations,
configuration, bioframe_migration.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
