Apr 1

1. 18:50

   Add test_idx to all examples for traceability

   gaozhongpai
   43c5604
2. 15:14

   Replace RC examples with bbox-annotated first frames

   gaozhongpai
   37f9aac
3. 15:03

   Initial MedVidQA demo: 8 medical video tasks with Qwen3.5-VL predictions

   gaozhongpai
   2e5766d