v1.4.0

What's Changed

• chore: Update astral-sh/setup-uv action by @Apricot-S in #78
• chore: Update actions/checkout action by @Apricot-S in #80
• chore: Add Python 3.14 support by @Apricot-S in #81
• feat: Deprecate Shanten.number_characters and Shanten.number_isolated_tiles by @Apricot-S in #82
• feat: Deprecate internal state properties of Shanten by @Apricot-S in #83
• docs: Apply markdownlint rules to README by @Apricot-S in #87
• docs: Add badges by @Apricot-S in #88
• docs: Change uv venv to uv sync for accurate setup and dependency installation via pyproject.toml by @Apricot-S in #89

Full Changelog: v1.3.0...v1.4.0