- Created `NativeAssetsManifest.json` and added font and shader assets for unit tests.
- Implemented `ink_sparkle.frag` and `stretch_effect.frag` shaders for visual effects.
- Developed unit tests for `ProfileRepository` to validate API interactions for fetching and updating user profiles.
- Utilized Mockito for mocking API client responses in tests.
- Deleted `next_steps_flutter.md` and `teknisk_beskrivning_flutter.md` files as they were outdated.
- Added new `next_steps_flutter.md` and `teknisk_beskrivning_flutter.md` files with updated migration plans and technical descriptions for the Flutter frontend.
- Implemented `profile_repository.dart` to handle profile data retrieval and updates using the API.
Co-authored-by: Copilot <copilot@github.com>