fix: resolve TypeScript errors in migrated components

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

@@ -0,0 +1,22 @@
+export { Card, CardHeader, CardContent, CardFooter } from "@mosaic/ui";
+export type { CardProps, CardHeaderProps, CardContentProps, CardFooterProps } from "@mosaic/ui";
+
+// Additional Card sub-components for shadcn/ui compatibility
+import * as React from "react";
+
+export interface CardTitleProps extends React.HTMLAttributes<HTMLHeadingElement> {}
+export interface CardDescriptionProps extends React.HTMLAttributes<HTMLParagraphElement> {}
+
+export const CardTitle = React.forwardRef<HTMLHeadingElement, CardTitleProps>(
+  ({ className = "", ...props }, ref) => (
+    <h3 ref={ref} className={`text-2xl font-semibold leading-none tracking-tight ${className}`} {...props} />
+  )
+);
+CardTitle.displayName = "CardTitle";
+
+export const CardDescription = React.forwardRef<HTMLParagraphElement, CardDescriptionProps>(
+  ({ className = "", ...props }, ref) => (
+    <p ref={ref} className={`text-sm text-gray-600 ${className}`} {...props} />
+  )
+);
+CardDescription.displayName = "CardDescription";