Fix CPU Attention softcap/attn_mask ordering (onnx#7867, #7913) + consolidate CUDA spec coverage tests from #28371 - #28379

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titaiwangms:fix-cpu-attention-softcap-mask-ordering

May 7, 2026

Commits on May 5, 2026

test: add CPU-EP guards for ONNX #7867 softcap/mask ordering (canary)

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fix(cpu): apply softcap before mask/bias in ONNX Attention (onnx#7867, #7913)

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Address PR-1-v2 review findings: oracle-verify regen, DRY mask_was_folded, doc polish

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Commits on May 6, 2026

Commits on May 7, 2026