fix: update CI/CD workflows for simplified project structure

- Remove macOS Native tasks from build.yml (not supported in simplified build)
- Remove kover coverage tasks (kover plugin removed for simplicity)
- Disable coverage badge updates until kover is re-added
- Update test commands to use explicit jvmTest jsTest
- Keep workflows running but simplified to JVM + JS platforms only

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Release version 2.1.0

Major improvements in this release:
- Added comprehensive test suite for Kotlin Multiplatform
- Implemented real JavaScript console output verification in tests
- Enhanced IDE experience with JavaScript language injection
- All tests pass on both JVM and JS platforms

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

version update

version update

legacy fix

version update