prisma-connection-pool-exhaustion

Fix Prisma "Too many connections" and connection pool exhaustion errors in serverless environments (Vercel, AWS Lambda, Netlify). Use when: (1) Error "P2024: Timed out fetching a new connection from the pool", (2) PostgreSQL "too many connections for role", (3) Database works locally but fails in production serverless, (4) Intermittent database timeouts under load.