Random API Generator

Add a fun developer utility to your site. Each click draws a curated random public API inspired by weekly selections on https://www.freepublicapis.com/ and shows:

• API name, category, and summary
• A copyable endpoint URL
• Sample JavaScript and WordPress PHP snippets

Features:
– Gutenberg block and [randapigen_api_generator] shortcode
– Admin setting to restrict categories
– Local favorites (browser localStorage)