Resolve a QQBot recipient from the local known-targets registry, distinguish between similarly named contacts, and send text or files to the intended QQ user with the correct target. Use whenever the user says things like “发给这个 QQ 联系人”, “把这个文件发给某个 QQ 用户”, “看看 known-targets.json 里是谁”, “确认发送对象”, or when you need to map a human-readable QQ contact name to a concrete `user:<openid>` target before sending. Prefer this skill over guessing from the current chat when multiple QQ users exist.