本次更新统一了大工具输出处理：删除 large_result_threshold、result_storage_dir 和 query_execution_result；超过 reduction_max_length_for_trunc（50KB）的结果由 Eino reduction 生成 并落盘。落盘路径在 tmp/reduction/ 下按项目区分：已绑定项目为 projects/{项目ID}/，未绑定则为 conversations/{会话ID}/。
This update unifies large tool-output handling by removing large_result_threshold, result_storage_dir, and query_execution_result. Outputs above reduction_max_length_for_trunc (50KB) are truncated via Eino reduction into and saved under tmp/reduction/, scoped by project (projects/{projectID}/ when a project is bound, otherwise conversations/{conversationID}/).