Layout editor: ghost height (cm) control in the table panel

public/admin/layout.html

@@ -299,12 +299,17 @@ function panel(rebuild = true) {
   const o = sel && dataOf(sel);
   if (!o) { side.innerHTML = '<em style="opacity:.6">Tap an object to select it, then drag the gizmo arrows (X red, Y green = height, Z blue). All values in cm.</em>'; return; }
   if (sel.kind === 'table') {
-    let h = `<h2>table dimensions</h2>`;
+    let h = `<h2>table &amp; scale</h2>`;
     h += field('width (cm)', o.width, v => o.width = v, { step: 1 });
     h += field('depth (cm)', o.depth, v => o.depth = v, { step: 1 });
     h += field('offset x', o.offsetX || 0, v => o.offsetX = v, { step: 1 });
     h += field('offset z', o.offsetZ || 0, v => o.offsetZ = v, { step: 1 });
     h += field('show', o.show === false ? 'no' : 'yes', v => o.show = v === 'yes', { select: ['yes', 'no'] });
+    h += field('ghost height (cm)', scene.ghostHeightCm ?? 4, v => scene.ghostHeightCm = v, { step: 0.5 });
+    h += `<p class="badge">Ghost height scales every ghost (wisp or OBJ model) to that many cm tall —
+      minifigure ≈ 4 cm. Models auto-normalize by bounding box, so imported OBJs land at this size
+      regardless of their source units; per-model fine-tune lives in the models manifest. Applies
+      live to all viewers on Save.</p>`;
     h += `<p class="badge">Orange outline = your physical table, measured from the world origin
       (front-left corner, N = +Z = back). Width runs W→E, depth runs S→N. Offsets shift the
       table if your origin isn't at its corner. Saved with the layout; also printed on the