Added comprehensive production service architecture guide with singleton patterns, caching strategies, and performance optimization for Express/Node.js services.
Changes:
- NEW: docs/PRODUCTION_SERVICE_ARCHITECTURE.md - Complete guide for using Brainy in production services
- CHANGED: .gitignore - Removed PRODUCTION_*.md pattern to allow public documentation
- CHANGED: README.md - Added subtle link to production architecture guide in "Production MVP" section
Guide covers:
- Instance-per-request anti-pattern (40x memory waste)
- Singleton pattern implementation (40x memory reduction, 30x faster)
- Three implementation patterns (simple, service class, middleware)
- Optimization strategies (cache sizing, lazy loading, warm-up)
- Concurrency and thread safety
- Production checklist and monitoring
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
