main() must not run real_main on android. The library's DT_INIT points at Odin's
_odin_entry_point, which the loader runs the moment NativeActivity dlopens
libmain.so -- before the glue calls android_main, so context.user_ptr is nil and
backend_init faults writing app.onAppCmd. The proc still has to exist: package
main requires it and it is the desktop entry point.
The insets retry now uses request_render_at. A plain request_render made before
the build is consumed by the frame it is running in, so it schedules nothing and
the loop parks with insets unresolved; it only appeared to work because the
first frames redraw anyway while the tree settles.
Guards the JNI-only paths (show_toast, refresh_insets) behind the android
subtarget so the shared real_main is usable on desktop. refresh_insets returns
true there rather than false: zero insets are correct where there are no system
bars, and returning false would retry every frame forever.
Also declares appCategory=game, and enables the engine's frame timings.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>