ci: remove redundant macos-14 from test matrix

macos-latest already points to macos-14 (Apple Silicon/ARM64),
so testing both is redundant. Keep only macos-latest.

Final matrix: 8 jobs (2 Go versions × 4 platforms)
- ubuntu-latest (Linux x86_64)
- ubuntu-24.04-arm64 (Linux ARM64)
- macos-latest (macOS ARM64)
- windows-latest (Windows x86_64)

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

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

feat: enhance SquashFS CLI tool and project structure

- Added 'info' command to the CLI tool to display metadata about archives
- Updated README with CLI usage documentation and examples
- Added CLAUDE.md with project guidelines and commands
- Improved code formatting and whitespace consistency
- Updated Makefile with CLI build target
- Added go.work for better module management
- Improved error handling in the CLI tool

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

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

fix reading of dir index for complex cases

small fix?

fix dirReader call in inode_fuse.go

feat: use dir indices when available for faster directory read

fix type

add "xz" and "zstd" tags to support more formats

update readme

refactor type & dir lookup, and add tests