## Summary This epic tracks the effort to migrate various AI usage data endpoints from legacy contributions-based filtering to namespace path based filtering. This migration will improve performance and align with our current data architecture patterns. ## Background Currently, several AI usage data endpoints use legacy contributions-based filtering which is less efficient and causes confusion as to how events are attributed to a namespace. We need to systematically migrate these endpoints to use namespace_path filtering instead. ## Goals - Migrate all AI usage data endpoints from contributions-based filtering to namespace_path filtering - Ensure consistent filtering patterns across AI usage data endpoints