Initial commit

src/lib/db.ts

@@ -0,0 +1,26 @@
+/**
+ * Component: Database Client
+ * Documentation: documentation/backend/database.md
+ */
+
+import { PrismaClient } from '@/generated/prisma/client';
+
+// Prevent multiple instances of Prisma Client in development
+const globalForPrisma = globalThis as unknown as {
+  prisma: PrismaClient | undefined;
+};
+
+export const prisma =
+  globalForPrisma.prisma ??
+  new PrismaClient({
+    log: process.env.NODE_ENV === 'development' ? ['query', 'error', 'warn'] : ['error'],
+  });
+
+if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma;
+
+// Graceful shutdown
+process.on('beforeExit', async () => {
+  await prisma.$disconnect();
+});
+
+export default prisma;