v0.40.10-rc0: Update gemma renderers (#19241)

发生了什么

renderers: add gemma4-nemotron renderer Add a Gemma 4 renderer variant that renders assistant content before its tool calls rather than after the tool responses. Models opt in with RENDERER gemma4-nemotron; gemma4 auto-detection is unchanged. Adds the corresponding chat template as a test fixture for Jinja parity checks. mlx: support Gemma 4 targets with DFlash drafts Load a draft-owned output head when its config r…

摘要按规则整理自下方来源原文

来源