Custom chat session implementation

[onora-hbl]

Hey, as part of a project, I want to implement a complete “chat” extension connected to my own backend with my models. This backend is responsible for message persistence. Working in a VScode web context, I need my users to be able to retrieve their conversations when changing browsers or computers
To do this, I use provideChatSessionItems and provideChatSessionContent, but this only works on sessions created on my schema. However, when a user creates a new session from scratch, it is Local and therefore impossible to connect to my session provider (chatSessionContext being undefined, it is impossible to use onDidCommitChatSessionItem)
Could you tell me if the path I am using is correct or if I should use another API? Thank you.