HiSparse wheel @ 69859af (cu129, torch 2.9, cp312)

vLLM 0.24.1.dev0 + HiSparse @ 69859af. Changes vs hisparse-415211c: host-resident-only (mirror mode + validity bitmap deleted), warm_start removed after dead-even A/B, host_to_device_ratio removed (host_pool_gib now REQUIRED in hisparse_config). PD-smoke 8/8 token parity at this head.