fix: remove AI service host port 8000 binding (conflicts with Coolify)

docker-compose.yml

@@ -44,8 +44,10 @@ services:
       dockerfile: Dockerfile
     container_name: shoottracker-ai
     restart: unless-stopped
-    ports:
-      - "8000:8000"
+    # Pas de ports exposés sur l'hôte : accessible uniquement en interne
+    # (shoottracker-app -> http://shoottracker-ai:8000 via Docker network)
+    expose:
+      - "8000"
     environment:
       PORT: 8000
       YOLO_MODEL_PATH: yolov8n.pt