chore: reorganize project into monorepo

frontend/astro.config.mjs

@@ -0,0 +1,14 @@
+// @ts-check
+import { defineConfig } from 'astro/config';
+import svelte from '@astrojs/svelte';
+import tailwind from '@astrojs/tailwind';
+
+// https://astro.build/config
+export default defineConfig({
+  integrations: [
+    svelte(),
+    tailwind({
+      applyBaseStyles: false
+    })
+  ]
+});