## Context From CodeRabbit review of `fix/rollback-activity-feed-issues` PR. ## Issue **File:** `apps/web/src/app/api/ai/chat/messages/[messageId]/undo/__tests__/route.test.ts` **Lines:** 319-320, 345-346 Tests verify `force: false` default but don't test `force: true` scenarios. ## Add tests for: - Explicitly passing `force: true` in request body - Scenarios where preview indicates `requiresForce: true` - Behavior when forcing despite `hasConflict: true` - Authorization checks when force is used ## Priority Low - missing test coverage ## Effort Medium