fix: drop glare holes before the margin and never auto-pick specks

Filtering holes after the margin let -2 mm grow 1 mm specks past the
3 mm cutoff, and could drop real holes shrunk by a positive margin.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/lib/geometry.ts

@@ -2,8 +2,6 @@ import type { Point, Shape } from './types';
 
 export type Bounds = { minX: number; minY: number; maxX: number; maxY: number };
 
-const MIN_HOLE_MM = 3;
-
 export function bounds(points: Point[]): Bounds {
   let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
   for (const p of points) {
@@ -70,11 +68,7 @@ export function prepareForExport(shapePx: Shape, pxPerMm: number, toleranceMm =
     simplifyRing(ring.map((p) => ({ x: p.x / pxPerMm, y: p.y / pxPerMm })), toleranceMm);
   const outer = toMm(shapePx.outer);
   if (outer.length < 3) return null;
-  const holes = shapePx.holes.map(toMm).filter((hole) => {
-    if (hole.length < 3) return false;
-    const { width, height } = shapeSize({ outer: hole, holes: [] });
-    return width >= MIN_HOLE_MM || height >= MIN_HOLE_MM;
-  });
+  const holes = shapePx.holes.map(toMm).filter((hole) => hole.length >= 3);
   const { minX, minY } = bounds(outer);
   const shift = (ring: Point[]) => ring.map((p) => ({ x: p.x - minX, y: p.y - minY }));
   return { outer: shift(outer), holes: holes.map(shift) };