Infrastructure & Polish: Caching & Documentation

[mohamedadel96e]

Overview

Implement performance optimizations and complete documentation for production readiness.

Requirements

In-Memory Caching

• Add caching layer in services/cache-service.ts for frequently accessed sheet data
  • Cache ideas, tasks, milestones (configurable TTL)
  • Implement cache invalidation on sheet writes
  • Track cache hit/miss ratios for debugging
• Reduce Google Sheets API quota usage by caching reads

Documentation

• Complete README setup guide with:
  • Step-by-step setup instructions
  • Environment variable guide with descriptions
  • Google Sheets tab setup walkthrough
  • Troubleshooting section
• Add deployment guidelines (if applicable)
• Document color palette and design system in place

Acceptance Criteria

• Cache reduces API calls by ~70% under normal usage
• Cache invalidation works correctly after updates
• README is comprehensive and user-friendly
• No broken links in documentation
• All setup steps are tested and verified