Filter rating history days

[ddugovic]

My Discord bot graphs a player's last 90 days of rating history grouped by date (and storm rating history) so the API endpoint doesn't need to offer the full history (which will only grow over time):
https://lichess.org/api#operation/apiUserRatingHistory

The bot needs to do its own data filtering anyway in case there's too much data to produce a graph, so this isn't urgent, just puzzling why the API offers an unbounded query.

I see that https://lichess.org/api#operation/apiStormDashboard does group best rating by date and does specify a "days" filter.