feat(18-05): add public profile page and setup visibility toggle

- Create public profile page at /users/$userId with avatar, name, bio, setups
- Create PublicSetupCard component for profile page setup listing
- Add isPublic toggle button on setup detail page
- Add Public badge to SetupCard in list view
- Update useSetups hook with isPublic field on interfaces

src/client/components/SetupCard.tsx

@@ -4,6 +4,7 @@ import { useFormatters } from "../hooks/useFormatters";
 interface SetupCardProps {
 	id: number;
 	name: string;
+	isPublic?: boolean;
 	itemCount: number;
 	totalWeight: number;
 	totalCost: number;
@@ -12,6 +13,7 @@ interface SetupCardProps {
 export function SetupCard({
 	id,
 	name,
+	isPublic,
 	itemCount,
 	totalWeight,
 	totalCost,
@@ -24,7 +26,16 @@ export function SetupCard({
 			className="block w-full text-left bg-white rounded-xl border border-gray-100 hover:border-gray-200 hover:shadow-md transition-all p-4"
 		>
 			<div className="flex items-start justify-between mb-3">
-				<h3 className="text-sm font-semibold text-gray-900 truncate">{name}</h3>
+				<div className="flex items-center gap-1.5 min-w-0">
+					<h3 className="text-sm font-semibold text-gray-900 truncate">
+						{name}
+					</h3>
+					{isPublic && (
+						<span className="inline-flex items-center px-1.5 py-0.5 rounded-full text-[10px] font-medium bg-green-50 text-green-600 shrink-0">
+							Public
+						</span>
+					)}
+				</div>
 				<span className="ml-2 inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium bg-blue-50 text-blue-400 shrink-0">
 					{itemCount} {itemCount === 1 ? "item" : "items"}
 				</span>