Initialise the Task Queue

Scaffold a planning/ directory tree at the root of the current repository. This is the on-disk structure the task-queuer plugin operates on.

Steps

1. Determine the target root. Use the current working directory. If it is not a git repository, confirm with the user before scaffolding.

2. Check existing state. If planning/ already exists, do not overwrite. List what is present and what is missing, then create only the missing directories.

3. Create the directory tree. The full structure is: