5a76ed4f6a
Make the file + function naming symmetric:
_gqa_decode.py -> _gqa_decode_long.py
_gqa_prefill.py -> _gqa_prefill_long.py
gqa_decode_kernel -> gqa_decode_long_kernel
gqa_prefill_kernel -> gqa_prefill_long_kernel
Mirrors the existing _gqa_{decode,prefill}_short.py naming. Updates the
two imports + two call sites in milestone_gqa_headline.py and the 9
attention tests that import the kernels.
Tests: 72/72 focused regression green (tests/attention/ + Phase E + TL
discipline). milestone-gqa-headline bench passes its 7 panel/schema
assertions.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>