feat(cuda): Implement custom TVM schedule for fused QKV-split and RoPE #3397
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Introduces a high-performance custom TVM schedule for the combined QKV-split and Rotary Positional Embedding (RoPE) operation.
This optimization forces the entire computation to run within a single fused CUDA kernel, significantly reducing kernel launch overhead and improving memory access patterns for Llama-style models on GPU.