* apply gating in recurrent_gated_delta_rule
* update cache with new state
* prealocate outputs in recurrent_gated_delta_rule
* feat(kernel): gated-delta kernel scaffolding with CPU fallbacks and tests; integrate in Qwen3Next behind flag
* feat(kernel): implement Metal kernel for gated delta prefill with time iteration to optimize performance
* faster single time step kernel
* use kernel for prefill
* version bump
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Co-authored-by: Goekdeniz-Guelmez <gulmezdeniz1999@gmail.com>
Co-authored-by: Awni Hannun <awni@apple.com>
Ivan Fioravanti
a7f534c3f5