Add retention period to AI usage events
What does this MR do and why?
Adds retention period to AI usage events
We will store only 3 months of data in PG for performance reasons. No user facing changes
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.
Related to #477226 (closed)