Struct FftDispatchCtx 

pub struct FftDispatchCtx<'a> {
    pub stream: &'a Arc<CudaStream>,
    pub completion: &'a Arc<dyn CompletionStrategy>,
    pub plan: Arc<dyn Any + Send + Sync>,
}

Per-execution context bundle handed to every FftDispatch::dispatch. The actor packs its current stream + completion strategy + plan handle (already resolved against the LRU cache) so dispatch impls stay lean.

Fields

stream: &'a Arc<CudaStream>

completion: &'a Arc<dyn CompletionStrategy>

plan: Arc<dyn Any + Send + Sync>

Already-resolved cuFFT plan (Arc<CudaFft>). Type-erased to dyn Any to keep this trait import-light; the actor downcasts inside kernel::fft.