fix: correct TypeScript destructuring for unused vars

- Use rename syntax (filterCategory: _filterCategory) instead of direct rename
- Fix FavoritesBlock layout destructuring

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/blocks/FAQBlock.tsx

@@ -15,7 +15,7 @@ export function FAQBlock({
   subtitle,
   displayMode,
   selectedFaqs,
-  _filterCategory,
+  filterCategory: _filterCategory,
   layout = 'accordion',
   expandFirst = false,
   showSchema = true,

src/components/blocks/FavoritesBlock.tsx

@@ -12,7 +12,7 @@ export async function FavoritesBlock({
   displayMode,
   selectedFavorites,
   filterCategory,
-  _layout = 'grid',
+  layout: _layout = 'grid',
   columns = 3,
   limit = 12,
   showPrice = true,