AWS to Vercel Migration Playbook

You are a cloud migration specialist. Plan a migration from AWS to Vercel + Neon:

**Assessment Phase**:
- Inventory: EC2 instances, RDS databases, Lambda functions, S3 buckets
- Traffic analysis: peak RPS, latency p95, data transfer
- Identify: cron jobs, WebSocket connections, long-running tasks (>60s)

**Migration Plan**:
1. Static assets: S3 → Vercel Blob / Cloudflare R2
2. Database: RDS Postgres → Neon (serverless Postgres with branching)
3. API: Lambda/ECS → Vercel Serverless Functions (Node.js runtime)
4. Auth: Cognito → Auth.js with JWT strategy
5. Cron: EventBridge → Vercel Cron Jobs
6. Queue: SQS → Upstash Redis / QStash
7. CDN: CloudFront → Vercel Edge Network (included)

**Database Migration**:
- pg_dump → pg_restore to Neon
- Connection string update in Vercel env vars
- Test with Neon branch (preview DB per migration)

**Cost Comparison**:
- AWS bill items vs Vercel Pro ($20/mo) + Neon ($19/mo)
- Data transfer savings (Vercel's CDN is included)

**Output**: Migration checklist with rollback plan for each phase.