Add iOS launch screen and app icon assets

- Created new app icon images for various sizes and added them to the asset catalog.
- Added launch images for different resolutions (1x, 2x, 3x) in the asset catalog.
- Updated the LaunchScreen storyboard to use the new launch images.
- Created a README for the launch image assets directory.
- Updated Info.plist to reference the new launch storyboard.
- Added a bridging header for Swift compatibility.
- Created initial test file for Runner application.
- Initialized project structure with necessary files and configurations.

.gitignore

@@ -0,0 +1,41 @@
+# Flutter / Dart
+.dart_tool/
+/.flutter-plugins
+/.flutter-plugins-dependencies
+build/
+.packages
+pubspec.lock
+
+# Android
+/android/.gradle/
+/android/app/build/
+/android/build/
+
+# iOS
+/ios/Pods/
+/ios/Flutter/Flutter.framework
+/ios/Flutter/Flutter.podspec
+/ios/Runner.xcworkspace/
+/ios/Runner/GeneratedPluginRegistrant.*
+*.xcworkspace
+*.xcuserdatad
+*.xcodeproj/project.xcworkspace
+/ios/.Datadriven
+
+# VS Code
+/.vscode/
+
+# macOS
+.DS_Store
+
+# Node / Expo / React Native (keep backup of old project files in legacy_expo_backup/ before deleting)
+/node_modules/
+/package-lock.json
+/pnpm-lock.yaml
+/yarn.lock
+/.expo/
+app/build/
+*.log
+
+# Secrets
+.env