Adds MTMC_Tracking_2026/test/ for scenes Warehouse_023, Warehouse_024, Warehouse_025.
Included per scene:
- videos/Camera_XXXX.mp4 (1080p, H.264, 30 FPS)
- calibration.json (2025-format schema)
- map.png
Intentionally omitted:
- depth_maps/ (large; held back from this PR)
- ground_truth.json (test labels remain private until evaluation server release)
Total payload: 56 files / ~6.3 GB across 3 scenes / 50 cameras.
