feat(ai): validate catalog generation invariants and fail violating regens - #2042

Bugbot Analysis Progress (1m 38s elapsed)

✅ Gathered PR context (4s)
✅ Completed bug detection (1m 33s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_8cde0633-b34c-4085-8929-49c75ea206dc