Update chao annotations

chao.json

@@ -7544,5 +7544,18 @@
     "full_x": 226.5,
     "full_y": 265.5,
     "timestamp": "2026-04-12T20:06:52.391013"
+  },
+  "annotated_frame_fancap_83": {
+    "tip_x": 39.5,
+    "tip_y": 39.5,
+    "crop_x1": 302,
+    "crop_y1": 286,
+    "crop_w": 51,
+    "crop_h": 60,
+    "img_w": 640,
+    "img_h": 480,
+    "full_x": 341.5,
+    "full_y": 325.5,
+    "timestamp": "2026-04-12T20:06:55.029370"
   }
 }