fix: TypeScript errors, shadow deprecations, and build configuration

- Fix shadow style deprecation warnings across components (boxShadow)
- Add type declaration files (codec.d.ts, modules.d.ts)
- Update metro.config.cjs for proper asset extensions
- Update tsconfig.json with module resolution settings
- Fix TypeScript errors in shared/lib files
- Update app icons (optimized PNG files)

mobile/src/components/LoadingSkeleton.tsx

@@ -49,7 +49,7 @@ export const Skeleton: React.FC<SkeletonProps> = ({
     <Animated.View
       style={[
         styles.skeleton,
-        { width, height, borderRadius, opacity },
+        { width, height, borderRadius, opacity } as any,
         style,
       ]}
     />