Every .so this project builds was already ELF-segment-aligned for 16 KB
pages (build-image/Dockerfile's ANDROID_16KB_LDFLAGS, app/build.gradle's
own CMAKE_SHARED_LINKER_FLAGS), but AGP 8.1.1 doesn't align native
libraries' zip entries within the APK itself - that only became automatic
in AGP 8.5.1, which is what Android Studio's "not compatible with 16 KB
devices" warning was actually flagging. No build-image changes needed:
Gradle/AGP are resolved over the network at build time, not baked into
the image.