[Blocker] Fix: Unify Prisma client with connection pooling across all files

## GitHub Update **Repository:** [MKWcorp/berkomunitas](https://github.com/MKWcorp/berkomunitas) **Author:** multimediadrw **Date:** 2/7/2026, 10:16:33 AM **Commit:** [`32c99e4`](https://github.com/MKWcorp/berkomunitas/commit/32c99e45f16cbb9544993c8bf2891958aee62092) ### Commit Message Fix: Unify Prisma client with connection pooling across all files - Update src/utils/prisma.js to use same connection pooling as lib/prisma.js - Add connection_limit parameter (5 for production, 10 for dev) - Update imports in privilegeChecker.js and generateUsername.js to use lib/prisma - Remove duplicate Prisma client instances - This should fix 'too many clients already' error in production Root cause: Multiple Prisma client files without proper connection pooling were creating too many connections to PostgreSQL. --- _This story was imported from historical commits._