Import miniabs 1.0 source

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

res/drawable/tab_bg.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true" android:drawable="@color/pressed" />
+    <item android:state_selected="true">
+        <layer-list>
+            <item><shape><solid android:color="@color/accent" /></shape></item>
+            <item android:bottom="3dp"><shape><solid android:color="@color/surface" /></shape></item>
+        </layer-list>
+    </item>
+    <item><shape><solid android:color="@color/surface" /></shape></item>
+</selector>