https://developer.nextmoe.dev/problems/chat/chat-request-limit
消息请求受限
CHAT_REQUEST_LIMIT HTTP 403私信对方还没有接受这段对话。在对方接受之前，调用者最多只能发 3 条纯文本消息，不能带链接和媒体。
Canonical (English)
Message request limit
The recipient has not accepted the conversation yet. Until they do, the caller may send at most 3 plain-text messages, with no links and no media.