AI usage report updates

GitHub has updated its AI usage reports to reflect AI Credits usage in standard report fields, replacing the preview fields `aic_quantity` and `aic_gross_amount` with `quantity` and `gross_amount`. A bug that caused the preview fields to persist after AI credits became the native billing model on June 1 has been fixed, retroactively zeroing those columns for AI credit usage from that date forward. The fix is now available for GitHub Enterprise Cloud customers, with historical reports from before June 1 remaining unchanged.

AI usage report updates Your AI usage reports now reflect GitHub AI Credits usage in the standard report fields. To monitor AI credit usage going forward, use quantity for AI credit quantity and gross amount for the dollar amount. These fields now provide the same signal that aic quantity and aic gross amount previously provided during the preview period. We added aic quantity and aic gross amount as a preview before AI credits became the native billing model on June 1. After that change, those preview fields were no longer meaningful for AI credit usage and should have been zeroed. A bug caused those values to persist until a fix was deployed. That fix retroactively zeroed those columns for AI credit usage from June 1 forward. Reports from before June 1 are unchanged, so your historical analysis will continue to work as expected. This fix is already available for GitHub Enterprise Cloud customers.