Release v0.1.1

- Add comprehensive test coverage (27 unit tests, 6 integration tests)
- Add GitHub Actions test coverage reporting with cargo-tarpaulin
- Clean up directory structure for public release
- Fix all clippy warnings and format code
- Add memory-mapped I/O example
- Update .gitignore with comprehensive exclusions
- Fix domain references (pipenetwork.co -> pipenetwork.com)
- Update README with development/testing instructions

- Test suite with unit and integration tests
- CI/CD test coverage reporting
- Example implementations in examples/ directory

- Fixed unused code warnings
- Fixed clippy linting issues
- Corrected domain references in documentation