feat(tasks): 目标完成后支持主 agent 直投意图执行(goalless)

所有目标达成后,主 agent 经 add_intent 下发的意图可被 worker 直接执行、跑完
即止;planner 在任务无 open 目标时不再运行,避免其重判目标达成而 cancelExec
杀掉直投意图;frontier 抽干后任务回到 done。

- db: 新增 HasOpenGoal 谓词(零迁移,读现有 goal 状态)
- engine: plannerLoop 加 goalless 门(无 open 目标则不进 planner,抽干则收尾)
- tools: add_intent 成功后调 resumeTask 复活任务(仅主 agent 生效,planner 为 nil)
- mainagent: 提示加入「目标达成后反问是否登记为正式目标」引导
- orchestration: reseedMainAgentPrompt 让旧库收到新提示(一次性,同构 reseedGoalsPrompt)

已知边角问题(paused/exhausted 意图的收官判据、零 goal 窗口、TOCTOU 等)
待后续讨论后再修。
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Autumn-27 committed 2026-08-24 11:58:02 -04:00
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@@ -857,6 +857,16 @@ WHERE exploration_id=$1 AND kind='intent' AND state IN ('open','running'))`, s.e
return exists, err
}
// HasOpenGoal reports whether this exploration still has any goal in state 'open'.
// false ⇒ 所有目标已 met/abandoned(或本任务无目标)⇒ 进入 goalless(人工直投)分支:
// planner 停跑,任务是否结束改由 frontier 是否抽干决定。met 与 abandoned 都算"已了结"。
func (s *ExplorationStore) HasOpenGoal() (bool, error) {
var exists bool
err := s.db.QueryRow(`SELECT EXISTS(SELECT 1 FROM exploration_nodes
WHERE exploration_id=$1 AND kind='goal' AND state='open')`, s.expID).Scan(&exists)
return exists, err
}
// ClaimIntent atomically moves an open intent to running. Returns true if claimed.
func (s *ExplorationStore) ClaimIntent(id int64, owner string) (bool, error) {
res, err := s.db.Exec(`UPDATE exploration_nodes SET state='running', owner=$1