feat: add HeroDiagram component for visualizing signal flow with stages and components

Author: orangekame3

astro.config.mjs

@@ -1,5 +1,8 @@
 import { defineConfig } from "astro/config";
 
+import react from "@astrojs/react";
+
 export default defineConfig({
   site: "https://cryowire.github.io",
-});
+  integrations: [react()],
+});