Claude sends {shape:'rectangle', params:{x,y,width,height,...}} but handlers
were reading params.get('width') on the outer dict → None → wrong board size.
outline.py: extract inner = params.get('params', params) at method start,
read all dimensions from inner dict.
kicad_interface.py (_ipc_add_board_outline): delegate 'rectangle' to SWIG
path (same as 'rounded_rectangle') so Claude's shape+dims call is handled
correctly. For polygon IPC path: also unwrap inner params for points/width.
44c5e7f388