chore: add playground type test

Author: danielroe

.github/workflows/ci.yml

@@ -67,3 +67,6 @@ jobs:
 
       # - name: Test types
       #   run: pnpm test:types
+
+      # - name: Test playground types
+      #   run: pnpm test:types:playground

package.json

@@ -26,6 +26,7 @@
     "lint": "eslint .",
     "test": "vitest run",
     "test:types": "vue-tsc --noEmit",
+    "test:types:playground": "cd playground && vue-tsc --noEmit",
     "test:watch": "vitest watch"
   },
   "dependencies": {