Update chao annotations

tip_annotations/chao.json

@@ -23,6 +23,6 @@
     "img_h": 2160,
     "full_x": 2080.3,
     "full_y": 1412.1,
-    "timestamp": "2026-04-03T21:08:51.739440"
+    "timestamp": "2026-04-03T21:08:59.464861"
   }
 }