feat: Add clean command to dev.sh script

[iNem0o]

Hello

This PR add a new development helper command to completely clean up the Docker environment. This is useful for contributors who want to reset their development environment to a clean state.

The clean command performs the following:

• Stops and removes all containers
• Removes all Docker images used by the project
• Removes all associated volumes
• Cleans up any orphaned containers

Usage:

./dev.sh clean

Documentation has been adjusted accordingly to the change.

[pounard]

It seems all good to me!

Pipeline is green, so let's merge this.

[pounard]

@iNem0o thanks!

[pounard]

It lack a line in the changelog, we'll have to add it.