refactor: rename site to frontend

frontend/vite.config.ts

@@ -0,0 +1,17 @@
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react-swc";
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [react()],
+  server: {
+    host: "0.0.0.0",
+    proxy: {
+      "/api": {
+        target: "http://tinyauth-backend:3000/api",
+        changeOrigin: true,
+        rewrite: (path) => path.replace(/^\/api/, ""),
+      },
+    }
+  }
+});