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

tsconfig.json

@@ -5,14 +5,20 @@
     "forceConsistentCasingInFileNames": true,
     "incremental": true,
     "isolatedModules": true,
-    "jsx": "preserve",
-    "lib": ["dom", "dom.iterable", "ES2024"],
+    "jsx": "react-jsx",
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "ES2024"
+    ],
     "module": "ESNext",
     "moduleResolution": "bundler",
     "noEmit": true,
     "noImplicitAny": false,
     "paths": {
-      "@/*": ["./*"]
+      "@/*": [
+        "./*"
+      ]
     },
     "plugins": [
       {
@@ -25,12 +31,16 @@
     "strictNullChecks": true,
     "target": "ES2024"
   },
-  "exclude": ["node_modules", "tests"],
+  "exclude": [
+    "node_modules",
+    "tests"
+  ],
   "include": [
     "next-env.d.ts",
     "types/**/*.d.ts",
     "**/*.ts",
     "**/*.tsx",
-    ".next/types/**/*.ts"
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts"
   ]
 }