fix buffer issue for playground's enclave

apps/idos-enclave/package.json

@@ -19,25 +19,26 @@
     "@types/dompurify": "3.0.5",
     "@types/lodash-es": "^4.17.12",
     "autoprefixer": "^10.4.16",
+    "ethers": "5.7.1",
     "postcss": "^8.4.31",
     "tailwindcss": "^3.4.1",
     "typescript": "^5.2.2",
     "vite": "^5.2.0",
     "vite-plugin-html": "^3.2.0",
-    "vite-plugin-mkcert": "^1.16.0",
-    "ethers": "5.7.1"
+    "vite-plugin-mkcert": "^1.16.0"
   },
   "dependencies": {
+    "@headlessui/react": "^2.1.8",
+    "@idos-network/idos-store": "workspace:*",
     "@lit-protocol/auth-helpers": "^6.4.10",
     "@lit-protocol/constants": "^6.5.0",
     "@lit-protocol/lit-node-client": "^6.4.10",
     "@lit-protocol/types": "^6.5.0",
-    "@headlessui/react": "^2.1.8",
-    "@idos-network/idos-store": "workspace:*",
     "@preact/signals": "^1.3.0",
     "@react-oauth/google": "^0.12.1",
     "@stablelib/base64": "^1.0.1",
     "@stablelib/utf8": "^1.0.1",
+    "buffer": "^6.0.3",
     "dompurify": "^3.0.6",
     "lodash-es": "^4.17.21",
     "preact": "^10.19.6",

apps/idos-enclave/src/main.ts

@@ -1,7 +1,9 @@
+import { Buffer } from "buffer";
 // @ts-expect-error Not typed yet
 import { Enclave } from "./lib/enclave";
 import "./styles.css";
 
+globalThis.Buffer = Buffer;
 const enclaveWindow = window.self;
 const hasParentWindow = enclaveWindow !== window.top;