Update chao annotations

chao.json

@@ -7847,5 +7847,18 @@
     "full_x": 508,
     "full_y": 193.5,
     "timestamp": "2026-04-12T20:07:54.029863"
+  },
+  "annotated_frame_x503": {
+    "tip_x": 71,
+    "tip_y": 53.5,
+    "crop_x1": 435,
+    "crop_y1": 139,
+    "crop_w": 88,
+    "crop_h": 74,
+    "img_w": 640,
+    "img_h": 480,
+    "full_x": 506,
+    "full_y": 192.5,
+    "timestamp": "2026-04-12T20:07:56.290349"
   }
 }