Update chao annotations

chao.json

@@ -7440,5 +7440,18 @@
     "full_x": 1951.6,
     "full_y": 1690.6,
     "timestamp": "2026-04-06T20:21:01.339284"
+  },
+  "annotated_frame_fancap_48": {
+    "tip_x": 11.5,
+    "tip_y": 71.5,
+    "crop_x1": 319,
+    "crop_y1": 240,
+    "crop_w": 27,
+    "crop_h": 90,
+    "img_w": 640,
+    "img_h": 480,
+    "full_x": 330.5,
+    "full_y": 311.5,
+    "timestamp": "2026-04-12T20:06:36.008693"
   }
 }