DiffusionGemma-Jev runs on vLLM: one denoising step yields answer confidence distributions

vLLM (@vllm_project) says DiffusionGemma-Jev now runs on vLLM. The server seeds a canvas with a response template, leaves only answer slots noisy, then reads a probability distribution from every slot in a single denoising step—so yes/no, multiple-choice, or scored questions return both an answer and confidence. Upstream PR: vllm-project/vllm#57250.