Update chao annotations

chao.json

@@ -7570,5 +7570,18 @@
     "full_x": 286,
     "full_y": 251.5,
     "timestamp": "2026-04-12T20:06:57.632025"
+  },
+  "annotated_frame_fancap_91": {
+    "tip_x": 36,
+    "tip_y": 29.5,
+    "crop_x1": 242,
+    "crop_y1": 192,
+    "crop_w": 42,
+    "crop_h": 46,
+    "img_w": 640,
+    "img_h": 480,
+    "full_x": 278,
+    "full_y": 221.5,
+    "timestamp": "2026-04-12T20:06:59.986675"
   }
 }