(Suggestion): add left handed weapons for right handed ones

Most of the weapons in Blocksworld look best right Handed and aren’t really made for left handed. It would be great if left handed weapons were added so that the right handed weapons would look the same way on the left hand. Also the same with right handed weapons for left handed weapons .

The issue names no files, tests, or entry points. First clarify which weapons are in scope and how left- and right-handed variants should look and behave. Done means the requested handed variants exist and match their opposite-handed counterparts.

Written by the indexing model from the issue text.