[Optimization] Add Fused Triton Kernel for GPT-OSS Router#29237

ijpq wants to merge 9 commits intovllm-project:mainvllm-project/vllm:mainfrom

ijpq:ijpq/fused_router_gptossijpq/vllm:ijpq/fused_router_gptossCopy head branch name to clipboard