本次更新主要围绕 Eino 的 execute 工具：为流式结果补上 tool_result_delta，长命令不再「长时间空白」；针对单次执行超时，把底层常见的 -1 与 DeadlineExceeded 对齐，并在管道里写入与界面一致的超时短句（已超时终止 · Timed out），保证进入模型上下文的 tool 正文与前端提示一致；对通过管道跑的 Python 默认注入 PYTHONUNBUFFERED=1，避免 print 被块缓冲卡住、看起来像死机。
This round focused on the Eino execute tool: streaming output now reaches the UI via tool_result_delta; single-run timeouts are normalized (including the common exit -1 case) and a short bilingual timeout line is appended to the streamed tool payload so the model sees the same hint as the UI; Python runs get PYTHONUNBUFFERED=1 by default so stdout is not block-buffered when piped, avoiding “no output until kill/timeout” behavior.