fix(android): adaptive icon — white bg + padded dark logo (was zoomed/clipped)

Old adaptiveIcon was a full-bleed dark logo on a #0a0a0a background → the
launcher mask cropped it ("zoomed in" look). Now: white background (matches
the Play Store listing icon look) + the same logo at ~62% on a transparent
canvas → mask has nothing to clip.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/rebreak-native/app.config.ts

@@ -40,9 +40,10 @@ export default ({ config }: ConfigContext): ExpoConfig => ({
     adaptiveIcon: {
       // Foreground muss in der ~66%-Safe-Zone bleiben (Launcher-Mask clippt den
       // Außenring) → adaptive-foreground.png ist das Logo auf transparentem
-      // 1024er-Canvas mit ~21% Padding. Hintergrund = Marken-Dunkel.
+      // 1024er-Canvas mit ~19% Padding. Hintergrund weiss → matcht den
+      // Play-Console-Look (dunkles Logo auf Weiss), statt dunkel-auf-dunkel.
       foregroundImage: "./assets/adaptive-foreground.png",
-      backgroundColor: "#0a0a0a",
+      backgroundColor: "#ffffff",
     },
     permissions: [
       "INTERNET",