fix: gate admin routes against cross-origin CSRF

app/api/admin/marketplace/[slug]/route.ts

@@ -19,11 +19,11 @@ const MAX_PREVIEW_SOURCE_LEN = 100_000;
  * Lets admins audit what they're about to install before pressing the button.
  */
 export async function GET(
-  _request: NextRequest,
+  request: NextRequest,
   { params }: { params: Promise<{ slug: string }> },
 ) {
   try {
-    const result = await requireAdminAuth();
+    const result = await requireAdminAuth(request);
     if ('error' in result) return result.error;
 
     const { slug } = await params;

app/api/admin/marketplace/route.ts

@@ -28,7 +28,7 @@ const DIRECTORY_URL = process.env.EXTENSION_DIRECTORY_URL || 'https://extensions
  */
 export async function GET(request: NextRequest) {
   try {
-    const result = await requireAdminAuth();
+    const result = await requireAdminAuth(request);
     if ('error' in result) return result.error;
 
     const { searchParams } = request.nextUrl;
@@ -93,7 +93,7 @@ export async function GET(request: NextRequest) {
  */
 export async function POST(request: NextRequest) {
   try {
-    const result = await requireAdminAuth();
+    const result = await requireAdminAuth(request);
     if ('error' in result) return result.error;
 
     const ip = getClientIP(request);