Update chao annotations

chao.json

@@ -7804,5 +7804,18 @@
     "full_x": 404,
     "full_y": 326.5,
     "timestamp": "2026-04-12T20:07:44.645753"
+  },
+  "annotated_frame_x42": {
+    "tip_x": 73,
+    "tip_y": 24.5,
+    "crop_x1": 333,
+    "crop_y1": 305,
+    "crop_w": 90,
+    "crop_h": 51,
+    "img_w": 640,
+    "img_h": 480,
+    "full_x": 406,
+    "full_y": 329.5,
+    "timestamp": "2026-04-12T20:07:48.421743"
   }
 }