Feat: global config and additional utilities

[cool-Dev-master]

• Global Configuration System: Adds defaultConfig(), getConfig(), and resetConfig() to configure formatting and error handling globally.
• New Utility APIs: Introduces sumBytes(), sortBytes(), isEqualBytes(), isValidByte(), and detectUnit() for easier collection manipulation.
• Graceful Error Handling: Centralizes error handling so utilities return fallbacks (0, "", or empty stats) rather than throwing when throwOnError is false.
• Automated CI/CD: Adds a GitHub Actions workflow to run tests, verify builds, and automatically publish to npm when merging version updates to main.