Unwrap IDlist contents

[ealui-statsig]

Request

For the get_id_lists endpoint, would it be possible to get the blob contents of those lists into the Redis cache too, and have the HTTP server able to serve those blobs out of the cache?
At the moment the url on each entry in that cached response is something like https://idliststorage.blob.core.windows.net/idlists/.... , whereas ideally we'd have those saved and have the URLs all pointing to some endpoint like https://statsig-forward-proxy-domain:8000/idlists/... (where statsig-forward-proxy-domain would likely have to be something we pass in to tell the service what its public URL is)

Rationale

Improve availability and e2e latency by bringing the data blobs closer to origin.