[Fix] Add support for legacy TW_AUTH_TOKEN in useLoggedInUser hook (#3616)

apps/dashboard/src/@3rdweb-sdk/react/hooks/useLoggedInUser.ts

@@ -8,6 +8,13 @@ import {
 } from "thirdweb/react";
 import type { EnsureLoginResponse } from "../../../app/api/auth/ensure-login/route";
 
+// define "TW_AUTH_TOKEN" to exist on the window object
+declare global {
+  interface Window {
+    TW_AUTH_TOKEN?: string;
+  }
+}
+
 export function useLoggedInUser(): {
   isLoading: boolean;
   isLoggedIn: boolean;
@@ -59,6 +66,13 @@ export function useLoggedInUser(): {
       if (data.redirectTo) {
         router.replace(data.redirectTo);
       }
+      if (data.jwt) {
+        // necessary for legacy things for now (SDK picks it up from there)
+        // eslint-disable-next-line react-compiler/react-compiler
+        window.TW_AUTH_TOKEN = data.jwt;
+      } else {
+        window.TW_AUTH_TOKEN = undefined;
+      }
     },
   });