v1.5.2

Original MAGICAL demo inputs now parse correctly: six-column scATAC peak files use their first four columns, and RefSeq files with headers produce a clear validation error. RefSeq headers must still be removed before running inference. Updated ATAC cache names prevent reuse of incorrectly parsed older caches.

Adds inference without a TAD prior through --no-tad, with --distance-control setting the maximum peak-center-to-TSS distance (default: 500 kb).

Validation: all 18 tests passed; source distribution and wheel built successfully as version 1.5.2.