main.ts missing enableShutdownHooks — Prisma never disconnects gracefully

[presidojay1]

PrismaService implements OnModuleDestroy to call $disconnect(), but Nest only invokes module-destroy lifecycle hooks on SIGTERM/SIGINT if app.enableShutdownHooks() was called during bootstrap. Without it, the process exits without draining Postgres connections cleanly on container restarts/deploys.

Suggested fix: Add app.enableShutdownHooks(); in bootstrap(), before app.listen(...).