feat: implement robust student ID discovery and multi-endpoint data extraction for activities

dashboard/viewer_template.html

@@ -287,6 +287,13 @@
         return;
       }
 
+      // Sort activities descending by date (newest first)
+      ARCHIVE_DATA.activities.sort((a, b) => {
+        const da = new Date(a.created_at || a.event_date || 0).getTime();
+        const db = new Date(b.created_at || b.event_date || 0).getTime();
+        return db - da;
+      });
+
       renderProfile();
       renderFeed('all', '');
       setupEvents();