rai-run an agent launcher

[Juliaj]

Originally posted by @maciejmajek in #694 (comment)

When designing RAI 2.0, we decided to move a bit further away from ROS 2 because of its limitations with Python usage. However, ROS 2 had a very convenient launch system. I would love to have something similar in RAI, so scripts like this would no longer be necessary:
e.g., rai-run rai_openset openset_agents

[rachwalk]

An idea discussed during 2025-10-01 dev meeting was to hijack the ros2 launch package: https://github.com/ros2/launch

Note: This package would need to be somehow included in the build system/published on PyPI, to maintain ability to use RAI without ROS2. However that should be possible.

Then it would require to create an entrypoint for the RAI runner:

rai/src/rai_core/rai/agents/runner.py

Line 70 in 4e42986

class AgentRunner:

and make the runner use LaunchDescription objects as basis for creating the agents.

Then that entrypoint could be included in pyproject.toml to use it as an exectuable and we will have a launch system very similar to the ROS2 system, however not dependant on ROS2.