Add user_id based insertion

[Tejaswgupta]

With the current implementation it's slightly difficult to use LightRag in organizational setting where global documents needs to be restricted within teams and local documents could just be for specific users.

I haven't checked out the code thoroughly , but how easy/difficult would this be?

[LarFii]

This is indeed an interesting feature. I personally believe it wouldn’t be very complex to implement. You could simply build separate graphs for different documents and determine the working path before executing the query. However, there might be some additional considerations, such as encryption or access control, to ensure proper security.