Snap lofts carcass-to-carcass, not shutter-to-shutter

Align loft units by their carcasses rather than their shutters, since shutters carry a 2 mm gap between them.

1. Shutters carry a 2 mm gap between them.

   ✓ ১০ অক্টোবর, ২০২৬ তারিখে প্রোডাক্টে যাচাই করা হয়েছে