upper18saw.ts

import { BLEED, type Cabinet, type Hole, type Span } from "../model";

// Upper 18" x 42" x 12" -- the CIRCULAR-SAW build of upper18: the exact same
// cabinet, but every part is a plain rectangle (no one-piece frames with
// windows, no pockets), so each piece is straight cuts with a saw + guide.
//
//   - Face frame: four pieces again -- 1x2 stiles full height, 1x3 rails
//     between them (glued + nailed, like the Woodshop Diaries original).
//   - Door: one solid full-thickness 3/4" rectangle.
//   - Door trim: FOUR 1/4"-ply strips (2" wide) framing the door face --
//     verticals full height, horizontals between them.
//   - Shelf-pin holes stay in the plan as a drilling map (hand drill + jig).
//
// Boards are 4x8 sheets (48 x 96), one per thickness. The layout is
// GUILLOTINE-style in HORIZONTAL ROWS: every part lies with its long side
// along the sheet's 4-foot width, so each long cut is a <=48" crosscut
// guided off the short edge — no 8-foot rips. A 1/2" CUTTING LANE separates
// parts instead of the CNC nest's 1" meat. The lane is the point: a saw
// kerf eats ~1/8" at every line, so the lane lets you cut each part exactly
// TO ITS OWN LINE (one edge cut, the neighbor still has its own line + kerf