impl/21-issue-opened-no-assignee
main
设计文档 PR #112 已合并。本 PR 实现代码改动: 1. _send_toolchain_task to_agent 允许 None(None 时跳过 AGENT_IDS 校验) 2. _handle_issues opened 分支:无 assignee + 有 type/* label → 创建 issue_discussion task(assignee=None) 3. router 对 assignee=None → delegate 庞统(FALLBACK_AGENT,现有机制) 4. toolchain_handler verify: issue_discussion auto-pass 5. _ACTION_HINTS + EVENT_LABELS_ZH 加 issue_closed/issue_discussion 司马懿 Review 建议项处理: - S1: router FALLBACK_AGENT=pangtong-fujunshi(router.py:71),assignee=None 必走 delegate - S2: _send_toolchain_task 校验已改为 to_agent is not None and ...(line 246) Closes #113