chore: add packageManager field on root

Signed-off-by: tunnckoCore <5038030+tunnckoCore@users.noreply.github.com>

Author: tunnckoCore

package.json

@@ -18,5 +18,6 @@
     "eslint-config-xaxa": "^25.0.12",
     "prettier-plugin-pkgjson": "^0.3.0",
     "typescript": "^5.8.3"
-  }
+  },
+  "packageManager": "pnpm@10.3.0"
 }