Initial WatchLink scaffold

src/lib/prisma.ts

@@ -0,0 +1,13 @@
+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" ? ["error", "warn"] : ["error"]
+  });
+
+if (process.env.NODE_ENV !== "production") {
+  globalForPrisma.prisma = prisma;
+}