fix: lazy-load Prisma client to fix build-time URL parsing

- Make Prisma client initialization lazy via Proxy
- Defer database-pool import until runtime
- Add guard for empty DATABASE_URL
- Build now succeeds with Next.js 16.1.4

lib/prisma.ts

@@ -1,14 +1,12 @@
 // Enhanced Prisma client setup with connection pooling
 import { PrismaClient } from "@prisma/client";
-import { createEnhancedPrismaClient } from "./database-pool";
-import { env } from "./env";
 
 // Add prisma to the NodeJS global type
 declare const global: {
   prisma: PrismaClient | undefined;
 };
 
-// Connection pooling configuration
+// Lazy-load createEnhancedPrismaClient to avoid build-time URL parsing
 const createPrismaClient = () => {
   // Use enhanced pooling in production or when explicitly enabled
   const useEnhancedPooling =
@@ -17,6 +15,8 @@ const createPrismaClient = () => {
 
   if (useEnhancedPooling) {
     console.log("Using enhanced database connection pooling with PG adapter");
+    // Dynamic import to defer URL parsing until runtime
+    const { createEnhancedPrismaClient } = require("./database-pool");
     return createEnhancedPrismaClient();
   }
 
@@ -26,21 +26,29 @@ const createPrismaClient = () => {
       process.env.NODE_ENV === "development"
         ? ["query", "error", "warn"]
         : ["error"],
-    datasources: {
-      db: {
-        url: env.DATABASE_URL,
-      },
-    },
   });
 };
 
-// Initialize Prisma Client with singleton pattern
-const prisma = global.prisma || createPrismaClient();
+// Lazy initialization - only create when first accessed
+let _prisma: PrismaClient | undefined;
 
-// Save in global if we're in development to prevent multiple instances
-if (process.env.NODE_ENV !== "production") {
-  global.prisma = prisma;
-}
+const getPrisma = (): PrismaClient => {
+  if (!_prisma) {
+    _prisma = global.prisma || createPrismaClient();
+    // Save in global if we're in development to prevent multiple instances
+    if (process.env.NODE_ENV !== "production") {
+      global.prisma = _prisma;
+    }
+  }
+  return _prisma!;
+};
+
+// Export a proxy that lazily initializes the client
+export const prisma = new Proxy({} as PrismaClient, {
+  get(_target, prop) {
+    return getPrisma()[prop as keyof PrismaClient];
+  },
+});
 
 // Graceful shutdown handling
 const gracefulShutdown = async () => {
@@ -63,5 +71,3 @@ export const checkDatabaseConnection = async (): Promise<boolean> => {
     return false;
   }
 };
-
-export { prisma };