feat: add market dashboard web app

apps/web/src/components/ui/card.tsx

@@ -0,0 +1,25 @@
+import { cn } from "@/lib/utils";
+
+export function Card({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      className={cn(
+        "rounded-lg border border-[var(--border)] bg-[var(--card)] text-[var(--card-foreground)] shadow-sm",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export function CardHeader({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("border-b border-[var(--border)] p-4", className)} {...props} />;
+}
+
+export function CardTitle({ className, ...props }: React.HTMLAttributes<HTMLHeadingElement>) {
+  return <h2 className={cn("text-sm font-semibold", className)} {...props} />;
+}
+
+export function CardContent({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("p-4", className)} {...props} />;
+}