RF-DETR demo: lead with pedestrian street detection video

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

config.json

@@ -457,6 +457,12 @@
       "demo": {
         "title": "FP16 vs INT8, Real Engine Outputs",
         "clips": [
+          {
+            "video": "https://huggingface.co/datasets/embedl/documentation-images/resolve/main/rf-detr-base-quantized-tensorrt/detections_pedestrians.mp4",
+            "label": "Pedestrian Street Detection",
+            "inference_setup": "560×560 · batch 1 · Jetson Orin Nano Super",
+            "citation": "Frame-by-frame detections from the TensorRT FP16 baseline (left) and the Embedl INT8 engine (right), captured on an NVIDIA Jetson Orin Nano Super. Source clip: 'pedestrian area' codec-test sequence (Taurus Media Technik, CC0 public domain)."
+          },
           {
             "video": "https://huggingface.co/datasets/embedl/documentation-images/resolve/main/rf-detr-base-quantized-tensorrt/threshold_sweep_street.mp4",
             "label": "Confidence Threshold Sweep",