refactor: Remove volume mapping for rosbag storage

Volume mapping could cause issues when user has old faults in the
fresh demo environment. Removing it to avoid confusion and potential issues with
rosbag storage. Users can still access rosbag files through the container if needed.

Author: bburda

demos/sensor_diagnostics/docker-compose.yml

@@ -7,8 +7,6 @@ services:
     container_name: sensor_diagnostics_demo
     environment:
       - ROS_DOMAIN_ID=40
-    volumes:
-      - medkit_data:/var/lib/ros2_medkit  # Persistent storage for faults and rosbags
     ports:
       - "8080:8080"
     stdin_open: true
@@ -50,7 +48,3 @@ services:
                curl -sf http://localhost:8080/api/v1/health &&
                curl -sf http://localhost:8080/api/v1/apps | jq '.items[] | .id' &&
                echo 'CI validation passed!'"
-
-volumes:
-  medkit_data:
-    name: sensor_diagnostics_medkit_data

demos/turtlebot3_integration/README.md

@@ -75,13 +75,12 @@ ros2 topic echo /odom
 ### Stopping the Demo
 
 ```bash
-./stop-demo.sh              # Stop containers (preserves rosbag data)
-./stop-demo.sh --volumes    # Stop and remove volumes (deletes rosbag data)
+./stop-demo.sh              # Stop containers
 ./stop-demo.sh --images     # Stop and remove images
 ```
 
-**Note:** Rosbag recordings are stored in a Docker volume (`turtlebot3_medkit_data`).
-Use `--volumes` to delete this data when stopping.
+**Note:** Fault data and rosbag recordings are ephemeral — they are stored
+inside the container and cleared on restart.
 
 ### 2. Access the Web UI
 

demos/turtlebot3_integration/docker-compose.yml

@@ -14,7 +14,6 @@ services:
       - HEADLESS=${HEADLESS:-false}
     volumes:
       - /tmp/.X11-unix:/tmp/.X11-unix:rw
-      - medkit_data:/var/lib/ros2_medkit  # Persistent storage for faults and rosbags
     ports:
       - "8080:8080"
     stdin_open: true
@@ -46,7 +45,6 @@ services:
       - NVIDIA_DRIVER_CAPABILITIES=all
     volumes:
       - /tmp/.X11-unix:/tmp/.X11-unix:rw
-      - medkit_data:/var/lib/ros2_medkit  # Persistent storage for faults and rosbags
     ports:
       - "8080:8080"
     deploy:
@@ -70,7 +68,3 @@ services:
     container_name: sovd_web_ui
     ports:
       - "3000:80"
-
-volumes:
-  medkit_data:
-    name: turtlebot3_medkit_data