Accessing RevenueCat charts

When querying a RevenueCat chart, follow this workflow:

1. Use get-chart-options-schema to discover a chart's available options.
2. Use get-chart-data with the right options to retrieve the chart data.
3. Analyze the data, using scripts for any non-trivial arithmetic.

In general, to avoid clogging the context, start with defined timeframes and larger resolution, then narrow down.

1. Discover chart options with get-chart-options-schema