- Add [fourthwall_random] shortcode for displaying random products
- Support for specifying count of products to display
- Option to use all store products or specific product URLs
- Add fwembed_extract_product_urls() function to extract product URLs
- Add fwembed_get_random_products() function for randomization logic
- Update README.md with comprehensive documentation and examples
- Maintain backward compatibility with existing shortcodes
- Eliminated code duplication by creating common HTTP request function
- Added configurable SSL verification setting for development/production
- Implemented smart caching system with 1-hour cache duration
- Enhanced admin interface with cache management and better styling
- Improved error handling and user experience
- Added comprehensive documentation and troubleshooting guide
- Updated README with new features and configuration options
