Restructure codebase to use src directory

src/prisma/DBClient.ts

@@ -0,0 +1,18 @@
+import { PrismaClient } from '@prisma/client';
+import { NODE_ENV } from '@/config/env';
+
+const globalForPrisma = global as unknown as { prisma: PrismaClient };
+
+const DBClient = {
+  instance:
+    globalForPrisma.prisma ||
+    new PrismaClient({
+      log: ['info', 'warn'],
+    }),
+};
+
+if (NODE_ENV !== 'production') {
+  globalForPrisma.prisma = DBClient.instance;
+}
+
+export default DBClient;