{
  "camera": {
    "device": "/dev/video5",
    "width": 1920,
    "height": 1536,
    "fps": 30,
    "buffers": 4,
    "timeout_ms": 2000
  },
  "inference": {
    "engine_directory": "../engines",
    "detector_confidence": 0.3,
    "max_people": 3,
    "queue_capacity": 2
  },
  "door": {
    "mask": "door_mask.json",
    "warning_relative": 0.3,
    "release_relative": 0.45,
    "calibration_verified": false
  },
  "brightness_gate": {
    "enabled": true,
    "roi": [0.02, 0.05, 0.88, 0.98],
    "dark_pixel_luma": 40.0,
    "enter_median_luma": 18.0,
    "enter_dark_ratio": 0.85,
    "enter_dark_tile_ratio": 0.75,
    "exit_median_luma": 24.0,
    "exit_dark_ratio": 0.80,
    "exit_dark_tile_ratio": 0.70,
    "startup_frames": 5,
    "enter_frames": 15,
    "exit_frames": 15
  },
  "can": {
    "enabled": true,
    "device_index": 0,
    "timeout_ms": 1000,
    "termination": true
  }
}