Frontend -- prompt --> Backend -- message --> Agent
Agent -- response --> Backend -- response --> frontend

Frontend -- functionResult --> Backend -- result --> Agent

Frontend -- uuid, prompt --> context {messages, function_names}

next -->

{
uuid, prompt, function_result
}

REST -> POST -> "chats" -> {id} resource created response
REST -> PUT -> "chats/{id}" {message: reply}
REST -> GET -> "chats/{id}"