The real serverless compute to database connection problem, solved

What this post added

Introduces the problem of serverless function suspension leading to database connection leaks and presents Vercel Fluid Compute's `waitUntil` feature as a solution. Details the algorithm for using `waitUntil` to close idle connections before suspension and explains the minimal cost implications with Active CPU Pricing. Provides best practices for database connection pool management in serverless and serverful environments.