增加：群聊业务

liusuyi

2024-07-06 0ab014198a8b4e40fa26da394373a4bcdb571148

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Phil Booth <pmbooth@gmail.com> (https://philbooth.me/)
Rowan Manning (https://github.com/rowanmanning)
Benedikt Rötsch (https://github.com/axe312ger)