Fix deployment, auth, and AI issues

This commit addresses three critical issues:
- Resolves Vercel deployment failures by fixing the Next.js and ESLint configurations.
- Corrects the Google authentication flow by updating the NextAuth.js configuration.
- Implements a functional AI chat service using the Vercel AI SDK, replacing the previous placeholder.

Author: google-labs-jules[bot]

.eslintrc.json

@@ -1,16 +1,34 @@
-import { dirname } from "path";
-import { fileURLToPath } from "url";
-import { FlatCompat } from "@eslint/eslintrc";
 
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = dirname(__filename);
-
-const compat = new FlatCompat({
-  baseDirectory: __dirname,
-});
+import nextPlugin from "@next/eslint-plugin-next";
+import reactPlugin from "eslint-plugin-react";
+import reactHooksPlugin from "eslint-plugin-react-hooks";
+import typescriptPlugin from "@typescript-eslint/eslint-plugin";
+import typescriptParser from "@typescript-eslint/parser";
 
 const eslintConfig = [
-  ...compat.extends("next/core-web-vitals", "next/typescript"),
+  {
+    files: ["**/*.ts", "**/*.tsx"],
+    languageOptions: {
+      parser: typescriptParser,
+      globals: {
+        React: "readonly",
+      },
+    },
+    plugins: {
+      "@next/next": nextPlugin,
+      react: reactPlugin,
+      "react-hooks": reactHooksPlugin,
+      "@typescript-eslint": typescriptPlugin,
+    },
+    rules: {
+      ...nextPlugin.configs.recommended.rules,
+      ...reactPlugin.configs.recommended.rules,
+      ...reactHooksPlugin.configs.recommended.rules,
+      "react/react-in-jsx-scope": "off",
+      "react/prop-types": "off",
+      "@typescript-eslint/no-unused-vars": "warn",
+    },
+  },
   {
     ignores: [
       "node_modules/**",

eslint.config.mjs

@@ -6,14 +6,6 @@ const nextConfig = {
   eslint: {
     ignoreDuringBuilds: false,
   },
-  // Skip linting during build to speed up deployment
-  eslint: {
-    ignoreDuringBuilds: true,
-  },
-  // Skip type checking during build
-  typescript: {
-    ignoreBuildErrors: true,
-  },
 }
 
-module.exports = nextConfig
+module.exports = nextConfig

next.config.js

@@ -5,7 +5,7 @@
     "dev": "next dev",
     "build": "prisma generate && next build",
     "start": "next start",
-    "lint": "next lint",
+    "lint": "eslint .",
     "db:push": "prisma db push",
     "db:studio": "prisma studio",
     "db:generate": "prisma generate"
@@ -40,7 +40,8 @@
     "recharts": "^2.8.0",
     "sonner": "^1.0.0",
     "tailwind-merge": "^2.0.0",
-    "zod": "^3.22.0"
+    "zod": "^3.22.0",
+    "@ai-sdk/openai": "^0.0.33"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4.1.14",