c35a1b3: Performance improvements - doctor56e4c00: Remove process.exit() - swap with typed Errord35d03c: Performance optimizations - mkdir(), readFile()ee224a6: Use Commander.js args properlya2b7a46: Rework doctor commandcf4a044: Fix angular eslint plugin typo25eb24f: Optimize dev dep installb46537a: Performance optimizations - exists()