fix(fe): derive the title figure from the live selection

figureName read slab.figureTermIds (the stored prop) while regenerateCopy()
runs against the local figIds edit state, so a freshly picked figure never
reached the title - drafts published as 'Black Walnut Slab' instead of
'Quilted Black Walnut Slab'. Read the local selection instead.

frontend/src/review/ReviewForm.svelte

@@ -48,7 +48,7 @@
   $: figTags = (taxonomy?.tags ?? []).filter((t) => t.slug.startsWith('fig-') || t.name.startsWith('fig-'));
   $: featTags = (taxonomy?.tags ?? []).filter((t) => t.slug.startsWith('feat-') || t.name.startsWith('feat-'));
   $: speciesName = (id: number | null) => categories.find((c) => c.id === id)?.name ?? '';
-  $: figureName = figureTerms.find((t) => t.id === (slab.figureTermIds?.[0] ?? null))?.name ?? null;
+  $: figureName = figureTerms.find((t) => t.id === (figIds[0] ?? null))?.name ?? null;
 
   // ── Draft fields ──
   let sku = slab.sku || '';