Update app.js

app.js

@@ -28,6 +28,9 @@ app.post("/api/ai-build", async (req, res) => {
     
     if(state && state.flatList) {
         console.log(`   Hierarchy Size: ${state.flatList.length} items (Flat Format)`);
+      const lll = JSON.stringify(obj); 
+      console.log(` Flat list: ${lll.length}`);
+     
     }
 
     // 1. **HANDLE SCRIPT SOURCE (Loop Step 2)**