chore: Secure routes with auth middleware, update text and fix minor bugs

src/proxy.ts

@@ -0,0 +1,27 @@
+import { NextResponse } from 'next/server';
+import type { NextRequest } from 'next/server';
+
+export function proxy(request: NextRequest) {
+  const token = request.cookies.get('auth_token')?.value;
+  const path = request.nextUrl.pathname;
+
+  // Protect /admin routes
+  if (path.startsWith('/admin')) {
+    if (token !== 'admin') {
+      return NextResponse.redirect(new URL('/login', request.url));
+    }
+  }
+
+  // Protect /dashboard routes
+  if (path.startsWith('/dashboard')) {
+    if (!token) {
+      return NextResponse.redirect(new URL('/login', request.url));
+    }
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: ['/dashboard/:path*', '/admin/:path*']
+};