Next.js Caching for Data Fetching

• Implemented Next.js caching to optimize data fetching across all AI apps.

• Reduced redundant queries by leveraging caching for Supabase requests, improving performance and user experience.

• Works seamlessly with the newly centralized query structure in @/lib/db/queries.
  
  

This update makes data fetching faster and more efficient, enhancing scalability and responsiveness for all demo apps.