Implement caching for Sanity CMS queries to improve performance

[davedumto]

Problem

Sanity queries are not cached, causing:

• Repeated expensive CMS queries
• Slow response times
• High API usage costs
• Poor performance for repeated requests

Impact

• Slow page load times
• High API costs
• Poor user experience
• Unnecessary database queries

Solution

Implement caching for Sanity queries:

• Cache frequently accessed content
• Add cache invalidation strategies
• Implement query result caching
• Add cache monitoring

Files to modify

• src/sanity/queries/index.ts
• Sanity client configuration

Acceptance Criteria

• Cache frequently accessed Sanity queries
• Implement cache invalidation
• Add cache monitoring
• Performance improvement metrics
• Cache hit/miss tracking