Sessions now update live across all users and devices

api.js

@@ -3,6 +3,28 @@ class ApiService {
     this.baseUrl = '/api';
     this.token = localStorage.getItem('dashy_token');
     this.subscribers = new Set();
+    this.connectSSE();
+  }
+
+  connectSSE() {
+    const url = `${this.baseUrl}/stream`;
+    this.sse = new EventSource(url);
+
+    this.sse.onmessage = (event) => {
+      try {
+        const data = JSON.parse(event.data);
+        if (data.type === 'refresh') {
+          this.notify();
+        }
+      } catch (e) {
+        // Fallback for non-JSON messages or just generic refresh
+        this.notify();
+      }
+    };
+
+    this.sse.onerror = (err) => {
+      console.error('SSE connection error. EventSource will auto-reconnect.', err);
+    };
   }
 
   subscribe(fn) {