Create a gameplay map for devs

For the sake of devs, I need to map each room, declaring any artefacts (environment variables, dot-files, symlinks, and so on) created by that room, and all possible paths from room to room.

Eventually, this map could be used to create a restart script that resets the entire dungeon, or at the very least would be a useful reference.

Not sure where to keep this map, as it's not meant for players, but the first task is to create the map.