- Updated catalog to 614 skills
- Updated README.md with correct skill counts
- Updated package.json to version 4.3.0
- Added release notes for v4.3.0
- Updated SOURCES.md with new attributions
- Updated README.md title and descriptions from 552+ to 560+
- Updated docs/GETTING_STARTED.md references
- Updated RELEASE_NOTES.md to v4.1.0
- Removed duplicate contributor entry
- Added @Dokhacgiakhoa and @junited31 to Repo Contributors
- Created RELEASE_NOTES.md documenting Vietnamese translations and unreal-engine-cpp-pro skill