docs: TypeScript performance optimization guide for large Prisma schemas

[ToyB0x]

Problem

Enterprise users with large Prisma schemas frequently hit severe TypeScript compilation bottlenecks—compilation times of several minutes, memory issues, and unresponsive IDEs. This is a common pain point affecting adoption at scale.

Solution

This guide demonstrates a simple but powerful optimization: using typeof instead of direct PrismaClient type references. Results show 78% faster compilation and 99.9% fewer type instantiations.

Impact for the community

• ⚡ Immediately actionable: One-line change with massive performance gains
• 🎯 Addresses real pain: Solves a frequent issue in enterprise environments
• 📊 Data-driven: Includes concrete benchmarks verified with tsc --extendedDiagnostics
• 📈 Scales with growth: Becomes more valuable as schemas expand

What's included

• Performance comparison table with real metrics
• Before/after code examples
• Technical explanation of why typeof is more efficient
• Link to complete benchmark repository

This fills a critical documentation gap for a performance issue that significantly impacts developer experience with Prisma at enterprise scale.