v26.0.1

What's Changed

• Add subcommand grouping via CommandGroup class and group parameter
• Fix short command display in help output
• Fix get_minimal_executable cross-drive crash on Windows
• Migrate build system from setuptools to flit
• Modernize CI: switch to uv and tox-uv, add Codecov integration
• Add GitHub Actions publish workflow with OIDC trusted publishing
• Drop Python 3.8 and 3.9 support (now requires >=3.10)
• Add Python 3.14 support
• Modernize codebase: f-strings, keyword-only arguments, type hints
• Flesh out documentation with comprehensive usage guides

Full Changelog: v24.0.0...v26.0.1