huge push of backend and frontend to dos to finish wiring up and UI display

backend/routes/notes.routes.js

@@ -2,6 +2,7 @@ import { Router } from 'express';
 import { readFile } from 'fs/promises';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
+import { clusterNotes } from '../services/clustering.service.js';
 
 const router = Router();
 
@@ -9,14 +10,28 @@ const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
 const DATA_PATH = join(__dirname, '..', 'data', 'notes.json');
 
+const loadNotes = async () => {
+  const raw = await readFile(DATA_PATH, 'utf-8');
+  return JSON.parse(raw);
+};
+
 router.get('/', async (req, res) => {
   try {
-    const raw = await readFile(DATA_PATH, 'utf-8');
-    const notes = JSON.parse(raw);
+    const notes = await loadNotes();
     res.json(notes);
   } catch (err) {
     res.status(500).json({ error: 'Failed to load notes' });
   }
 });
 
+router.post('/cluster', async (req, res) => {
+  try {
+    const notes = await loadNotes();
+    const clusters = await clusterNotes(notes);
+    res.json(clusters);
+  } catch (err) {
+    res.status(500).json({ error: 'Clustering failed' });
+  }
+});
+
 export default router;