feat: add canvas-confetti integration and AuroraButton component; enhance UI with animations and improve button interactions

src/components/effect/aurora-button.tsx

@@ -0,0 +1,23 @@
+// components/ui/aurora-button.tsx
+import { Button } from "@/components/ui/button"
+
+export function AuroraButton({
+  loading,
+  children,
+  ...props
+}: React.ComponentProps<typeof Button> & { loading?: boolean }) {
+  return (
+    <Button
+      {...props}
+      className={`${props.className ?? ""} relative overflow-hidden`}
+      disabled={props.disabled || loading}
+    >
+      {loading && (
+        <span className="absolute inset-0 animate-aurora" />
+      )}
+      <span className="relative z-10">
+        {loading ? "Pensando…" : children}
+      </span>
+    </Button>
+  )
+}