fix: explicit type casting for simulation response

apps/api/src/scripts/simulate-webhook.ts

@@ -59,7 +59,7 @@ async function runSimulation() {
             body: JSON.stringify(payload)
         });
 
-        const data = await response.json();
+        const data = await response.json() as any;
         console.log(`\n✅ Response (${response.status}):`, JSON.stringify(data, null, 2));
         
         if (data.status === 'forwarded') {