Recall

Find the agent's memories for a question. Candidates are opened and ranked by the words of query, how recent and how important they are (rerank re-reads the best by meaning), anything under threshold goes, then limit. This is a search, so a key with only the read scope may use it (it is a POST because it carries a body). Without a user_id or a subject it reads what the agent knows and what it knows of its owner, and NOT its users: name a user_id to read one user's. include_person adds the person's own facts, only as deep as the agent's person.read allows (and each self or private fact that leaves is logged against the key for the person to see). A paused agent answers 423.