feat(widget): Add home screen widget with quick access actions

android/app/src/main/res/drawable/widget_button_pill.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Pill-shaped primary button - Material 3 style with darker accent -->
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="#40FFFFFF">
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="@color/widget_primary_dark_fallback" />
+            <corners android:radius="24dp" />
+        </shape>
+    </item>
+</ripple>
+