Update camera screens, configuration, and build setup

src/screens/PreviewScreen.tsx

@@ -9,6 +9,7 @@ import {
   ActivityIndicator,
 } from 'react-native';
 import ViewShot from 'react-native-view-shot';
+import Animated, { FadeIn, FadeOut } from 'react-native-reanimated';
 import { THEME } from '../styles/theme';
 import { printImageLocal } from '../services/printer';
 import { saveToGallery } from '../services/storage';
@@ -180,7 +181,7 @@ export default function PreviewScreen({
   };
 
   return (
-    <View style={styles.container}>
+    <Animated.View entering={FadeIn.duration(400)} exiting={FadeOut.duration(300)} style={styles.container}>
       {/* Left panel: Preview Canvas */}
       <View style={styles.previewPanel}>
         {layout === 'single' ? (
@@ -288,7 +289,7 @@ export default function PreviewScreen({
           </View>
         </View>
       )}
-    </View>
+    </Animated.View>
   );
 }