Backfill feature enhancement

Customer Feedback Summary

• Would like to see the total credit cost before running a backfill.

• The term "entities" can be confusing; using "tickets" instead would be clearer.

• Would like the option to run a backfill immediately as a one-time action instead of requiring a scheduled run.

• Would like the ability to delete historical backfill entries from the backfill list.

  Customer: Bercell