Hey all, new here & trying to understand the best workflow for this. We are an organization that uses online advertisements to send traffic through funnels with the intention of generating inbound phone calls to our sales team. We are implementing Growthbook in order to run split tests to increase revenue per page visit, as well as other metrics such as quality of callers. To do so, we will pass back inbound call count, revenue, and call duration in real time. My questions: 1. Which database or events platform is recommended for this? 2. Do we need to perform aggregation on our end before connecting the metrics to Growthbook i.e. instead of having on massive table with call_revenue, call_duration, visitor_id columns, do we create a table that aggregates the metrics by experimentId, variationId?