Eliminate Package.json Diff Noise With Smart Key Ordering

Package.json diffs are often polluted with key reordering from different tools and editors, obscuring real changes and creating unnecessary merge conflicts. The fix seems obvious—just alphabetize—but that breaks semantic ordering like script sequences. keytidy solves this with context-aware rules: conventional ordering for package.json, alphabetical for dependencies, preserved order for scripts, and smart handling of other JSON files. For development teams, it's one less source of diff friction.