feat: upgrade next-auth to v5.0.0-beta.29 and refactor authentication middleware

- Updated next-auth dependency in package.json to version 5.0.0-beta.29.
- Refactored create-admin script to use a valid email format.
- Implemented authentication middleware for various API routes to enforce access control.
- Refactored API route handlers to improve readability and maintainability.
- Enhanced error handling in authentication error page.
- Added detailed tests for authentication flow, including protected routes and NextAuth endpoints.

src/app/api/projects/[id]/route.js

@@ -4,19 +4,25 @@ import {
 	deleteProject,
 } from "@/lib/queries/projects";
 import { NextResponse } from "next/server";
+import { withReadAuth, withUserAuth } from "@/lib/middleware/auth";
 
-export async function GET(_, { params }) {
+async function getProjectHandler(_, { params }) {
 	const project = getProjectById(params.id);
 	return NextResponse.json(project);
 }
 
-export async function PUT(req, { params }) {
+async function updateProjectHandler(req, { params }) {
 	const data = await req.json();
 	updateProject(params.id, data);
 	return NextResponse.json({ success: true });
 }
 
-export async function DELETE(_, { params }) {
+async function deleteProjectHandler(_, { params }) {
 	deleteProject(params.id);
 	return NextResponse.json({ success: true });
 }
+
+// Protected routes - require authentication
+export const GET = withReadAuth(getProjectHandler);
+export const PUT = withUserAuth(updateProjectHandler);
+export const DELETE = withUserAuth(deleteProjectHandler);