Update chao annotations

chao.json

@@ -7964,5 +7964,18 @@
     "full_x": 72,
     "full_y": 154.5,
     "timestamp": "2026-04-12T20:08:34.121312"
+  },
+  "annotated_frame_y486": {
+    "tip_x": 51.5,
+    "tip_y": 27.5,
+    "crop_x1": 479,
+    "crop_y1": 114,
+    "crop_w": 81,
+    "crop_h": 142,
+    "img_w": 640,
+    "img_h": 480,
+    "full_x": 530.5,
+    "full_y": 141.5,
+    "timestamp": "2026-04-12T20:08:36.130444"
   }
 }