v0.30.0

Feat

• dataset: fold haplotypes into ploidy-1 union in variant decode (#222)
• dataset: reject haplotypes/annotated output under unphased_union (#222)
• dataset: report ploidy=1 and fold n_variants under unphased_union (#222)
• dataset: add unphased_union flag on Haps + with_settings (#222)

Fix

• dataset: keep n_variants int32 under unphased_union fold (#222)

Refactor

• variants: drop retired order-dependent germline-CCF inference (#222)

Perf

• threads: tolerate malformed GVL_NUM_THREADS at import (#221)
• variant-windows: single fused fetch for both-window decode (#221)
• flanks: fuse 3 ref-window fetches into 1 via flank slicing (#221)
• reference: dispatch get_reference kernel serial/parallel (#221)
• reference: dispatch fetch kernel serial/parallel by per-thread bytes (#221)
• threads: cap numba workers to cgroup cores + add dispatch predicate (#221)