createAndroidComposeRule<MainActivity>() launches the activity in the
test process and verifies both app_name and app_tagline texts render
on the placeholder screen. Uses JUnit 4 + AndroidJUnit4 runner -
instrumented tests on Android still don't support JUnit Jupiter.
Test compiles (assembleDebugAndroidTest passes); execution requires
an emulator/device, performed in CI.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
0593b9c60f