Compose: expose painterResource in Xamarin.AndroidX.Compose.UI.Android

[Copilot]

PainterResources_androidKt bound as an empty wrapper, so painterResource(@DrawableRes Int): Painter was unreachable from C# — leaving the bound Painter/BitmapPainter/ColorPainter types unusable in typical Compose code.

The current binder toolchain already projects this method automatically; the checked-in binding predates that. No metadata transform is needed (an add-node for it would produce a duplicate method, CS0111). The fix is to record the API and ship a new package revision.

Changes

• PublicAPI/PublicAPI.Unshipped.txt: add PainterResources_androidKt.PainterResource(int, IComposer?, int) -> Painter.
• config.json: bump Xamarin.AndroidX.Compose.UI.Android 1.11.2 → 1.11.2.1 to trigger a rebuild that ships the bound method.

The bound method projects as:

public static Painter PainterResource (int id, IComposer? _composer, int _changed);

Notes

• AndroidX.Compose.UI.Res already exists in published-namespaces.txt; no namespace-file change required.
• Rebuilding under the current toolchain also surfaces unrelated inline-class methods ([generator] Phase 2: Kotlin @JvmInline value class projection java-interop#1440); that broader regeneration is intentionally out of scope here.