Add simple test API to isolate the issue

api/test.js

@@ -0,0 +1,35 @@
+import { NextResponse } from 'next/server';
+
+export async function GET(request) {
+  try {
+    return NextResponse.json({
+      success: true,
+      message: 'Test API is working!',
+      timestamp: new Date().toISOString()
+    });
+  } catch (error) {
+    console.error('❌ Error in test API:', error);
+    return NextResponse.json(
+      { error: 'Test API failed', details: error.message },
+      { status: 500 }
+    );
+  }
+}
+
+export async function POST(request) {
+  try {
+    const body = await request.json();
+    return NextResponse.json({
+      success: true,
+      message: 'Test POST API is working!',
+      receivedData: body,
+      timestamp: new Date().toISOString()
+    });
+  } catch (error) {
+    console.error('❌ Error in test POST API:', error);
+    return NextResponse.json(
+      { error: 'Test POST API failed', details: error.message },
+      { status: 500 }
+    );
+  }
+}