吉鑫升andClaude Opus 4.7
29f74afbf6
All scheduled tasks for a user shared one scheduler thread, so each run appended its messages to the same LangGraph checkpoint. Over time the history blew past the model's input window and every task on that account started failing with context-too-long. _execute_task now mints a fresh thread_id per run and threads it through ensure_thread_meta / snapshot / start_run / extract_*. The per-task scheduler_thread_id column is left in place for backwards compatibility but no longer drives the LLM call. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>