feat(orttraining): add CPU fallback for FusedAdam optimizer#28233

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Rishi-Dave wants to merge 2 commits intomicrosoft:mainfrom

Rishi-Dave:rishidave/feat/fused-adam-cpu-fallback

Commits on Apr 26, 2026

feat(orttraining): add CPU fallback for FusedAdam optimizer
Rishi-Dave
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Commits on May 1, 2026

fix(orttraining): preserve param groups and delegate optimizer state in CPU fallback
Rishi-Dave
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