20. Architecture Checklist

Category	Item	Status
Core Architecture
	High-level architecture diagram	✅
	Technology stack justified	✅
	Data flow documented	✅
	Scalability considered	✅
Data Layer
	Database schema defined	✅
	Relationships documented	✅
	Indexes identified	✅
	Migration strategy	✅
API Design
	API contracts defined	✅
	Input validation	✅
	Error responses standardized	✅
	Authentication/Authorization	✅
Frontend
	Component architecture	✅
	State management	✅
	Routing strategy	✅
	Error boundaries	✅
Security
	Authentication flow	✅
	Input sanitization	✅
	CORS/CSP headers	✅
	Secrets management	✅
Performance
	Caching strategy	✅
	Database optimization	✅
	Bundle optimization	✅
	Loading states	✅
DevOps
	CI/CD pipeline	✅
	Docker configuration	✅
	Environment separation	✅
	Deployment strategy	✅
Observability
	Logging strategy	✅
	Health checks	✅
	Metrics collection	✅
	Error tracking	✅