0.5.0

Thanks to @sw3do for the amazing help!

• Replace custom option comparison with ApplicationCommand.optionsEqual() for better reliability
• Add modern event handling using Events.ClientReady constant for type
• Implement comprehensive JSDoc documentation with detailed parameter descriptions
• Enhance error handling with better logging and RESTJSONErrorCodes usage
• Add input validation for client and commands parameters
• Improve debug logging with prefixed messages and operation details
• Update README.md with SlashCommandBuilder examples and advanced usage patterns
• Add support for complex command structures (subcommands, subcommand groups, NSFW)
• Optimize performance by removing redundant custom comparison functions
• Enhance code maintainability with better structure and documentation