initial: standalone repo from monorepo split

packages/db/src/index.ts

@@ -0,0 +1,19 @@
+import { PrismaClient } from '@prisma/client';
+
+const globalForPrisma = globalThis as unknown as { prisma: PrismaClient };
+
+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;
+}
+
+export { PrismaClient };
+export * from '@prisma/client';