restruct

backend/server.js

@@ -4,5 +4,5 @@ import config from './config/index.js';
 const PORT = config.port || 3001;
 
 app.listen(PORT, () => {
-  console.log(`Envision backend running on port ${PORT}`);
+  console.log(`Backend running on port ${PORT}`);
 });

backend/services/clustering.service.js

@@ -34,7 +34,7 @@ ${notesJson}`;
 
 export const clusterNotes = async (notes) => {
   const response = await client.messages.create({
-    model: "claude-sonnet-4-20250514",
+    model: "claude-opus-4-6",
     max_tokens: 4096,
     messages: [
       { role: "user", content: buildPrompt(notes) },