v1.0 — YOLO11s fire/smoke model (E05)

Final model (E05): YOLO11s, 640 px, ONNX. Thresholds: fire 0.25, smoke 0.30.
Test: fire 90% / smoke 95% of frames detected; unseen Heinola fire: 94% smoke frames, 0% false alarms.
demo_heinola.mp4: detections + temporal alarm on the held-out Heinola fire.