fix: resolve CI and workspace lint errors (admin + storefront)

- Allow require() in next.config.js (eslint-disable) for both apps
- Replace all catch (e: any) with catch (e: unknown) and proper error handling
- Remove no-explicit-any: add types (PreviewProduct, ProductImage, Id<addresses>,
  ProductDetailReview, error payloads) across admin and storefront
- Admin: use next/image in ImageUploadSection and ProductImageCarousel; remove
  unused layout fonts and sidebar imports; fix products page useMemo deps
- Storefront: use Link for /sign-in in header actions; fix useAddressMutations
  and product detail types; remove unused imports/vars and fix useMemo deps

Made-with: Cursor

apps/storefront/src/components/wishlist/WishlistPageView.tsx

@@ -15,8 +15,7 @@ import { WishlistSignInPrompt } from "./state/WishlistSignInPrompt";
 export function WishlistPageView() {
   const { isAuthenticated, isLoading: authLoading } = useConvexAuth();
   const { items, isLoading, isEmpty } = useWishlist();
-  const { removeItem, isRemoving, addToCart, isAddingToCart } =
-    useWishlistMutations();
+  const { removeItem, isRemoving, addToCart } = useWishlistMutations();
 
   const [removeTarget, setRemoveTarget] = useState<WishlistItem | null>(null);
   const [removingId, setRemovingId] = useState<string | null>(null);

apps/storefront/src/components/wishlist/state/WishlistEmptyState.tsx

@@ -1,7 +1,6 @@
 "use client";
 
 import Link from "next/link";
-import { WISHLIST_PATH } from "@/lib/wishlist/constants";
 
 function HeartIcon() {
   return (