fix(fe): match fig-/feat- tags by slug, and echo Figure selections to tags

Two fixes in the review form:
- figTags/featTags filtered on tag.name.startsWith('fig-'), but the live store
  marks the family on the SLUG (slug 'fig-chat', name 'Chatoyant'), so the
  figure/feature tag groups rendered empty. Match slug OR name.
- Echo Figure selections transparently: picking a Figure attribute term
  auto-selects the same-named fig-* tag and vice versa, so the Woo product
  carries the figure in both the pa_fig attribute and the fig-* tag without
  the owner picking it twice.

frontend/src/review/ReviewForm.svelte

@@ -43,8 +43,10 @@
   $: gradeTerms = attributeByName('Grade')?.terms ?? [];
   $: thicknessTerms = attributeByName('Thickness')?.terms ?? [];
   $: moistureTerms = attributeByName('Moisture')?.terms ?? [];
-  $: figTags = (taxonomy?.tags ?? []).filter((t) => t.name.startsWith('fig-'));
-  $: featTags = (taxonomy?.tags ?? []).filter((t) => t.name.startsWith('feat-'));
+  // The fig-/feat- family marker is on the tag SLUG (slug 'fig-chat', name
+  // 'Chatoyant'), so match slug OR name (METADATA-30: bare names are kept).
+  $: 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;
 
@@ -150,12 +152,43 @@
     primaryCatId = nextPrimary(selected, primaryCatId);
     regenerateCopy();
   }
+  // Figure selections echo transparently between the Figure attribute terms
+  // (pa_fig) and the synced fig-* product tags, so the Woo product carries the
+  // same figure in both places without the owner picking it twice. Matched
+  // case-insensitively on the display name (attribute "Curly" -> tag "Curly").
+  const normName = (s: string) => s.trim().toLowerCase();
+
+  function echoFigTag(termId: number, selected: boolean) {
+    const term = figureTerms.find((t) => t.id === termId);
+    if (!term) return;
+    const key = normName(term.name);
+    const match = figTags.find((t) => normName(t.name) === key);
+    if (match) figTagIds = toggleTag(figTagIds, match.id, selected);
+  }
+
+  function echoFigTerm(tagId: number, selected: boolean) {
+    const tag = figTags.find((t) => t.id === tagId);
+    if (!tag) return;
+    const key = normName(tag.name);
+    const match = figureTerms.find((t) => normName(t.name) === key);
+    if (match) figIds = selected ? [...new Set([...figIds, match.id])] : figIds.filter((x) => x !== match.id);
+  }
+
   function toggleFig(id: number) {
-    figIds = figIds.includes(id) ? figIds.filter((x) => x !== id) : [...figIds, id];
+    const next = figIds.includes(id) ? figIds.filter((x) => x !== id) : [...figIds, id];
+    figIds = next;
+    echoFigTag(id, next.includes(id));
     regenerateCopy();
   }
-  function toggleTag(list: number[], id: number): number[] {
-    return list.includes(id) ? list.filter((x) => x !== id) : [...list, id];
+  function toggleFigTag(id: number) {
+    const next = toggleTag(figTagIds, id);
+    figTagIds = next;
+    echoFigTerm(id, next.includes(id));
+    regenerateCopy();
+  }
+  function toggleTag(list: number[], id: number, forceSelected?: boolean): number[] {
+    const on = forceSelected ?? !list.includes(id);
+    return on ? [...new Set([...list, id])] : list.filter((x) => x !== id);
   }
 
   // ── Call 2: long description (METADATA-115) with template fallback ──
@@ -293,7 +326,7 @@
         <div class="chip-group">
           <span>Figure tags</span>
           {#each figTags as t (t.id)}
-            <button class="chip" class:selected={figTagIds.includes(t.id)} on:click={() => (figTagIds = toggleTag(figTagIds, t.id))}>{t.name}</button>
+            <button class="chip" class:selected={figTagIds.includes(t.id)} on:click={() => toggleFigTag(t.id)}>{t.name}</button>
           {/each}
         </div>
       {/if}