Constant DEFAULT_GPU_VRAM_BUDGET_BYTES 

const DEFAULT_GPU_VRAM_BUDGET_BYTES: usize = _; // 10_737_418_240usize

VRAM workspace budget used for GPU EPs when BGE_M3_GPU_VRAM_BUDGET_BYTES is unset.

10 GiB is a conservative ceiling for NVIDIA GPUs with ≥ 16 GiB VRAM (A10G, L4, H100 80GB). Override with BGE_M3_GPU_VRAM_BUDGET_BYTES for GPUs with less VRAM.