ROS 2 Jazzy Environment Setup on Ubuntu 24.04

Goal

Install ROS 2 Jazzy, configure a colcon workspace and run a first node on Ubuntu 24.04.

Procedure

1. Configure the ROS 2 package repository and install desktop tools.
2. Source /opt/ros/jazzy/setup.bash.
3. Create and build a colcon workspace.
4. Run a publisher and subscriber demo.

Verification

Record the command output, confirm the expected ROS 2 topic or behaviour, and resolve power, TF and device-permission errors before continuing.