fix(lint): resolve prettier formatting in useChat.ts

apps/web/src/hooks/useChat.ts

@@ -280,9 +280,12 @@ export function useChat(options: UseChatOptions = {}): UseChatReturn {
         }
 
         // Streaming failed - check if auth error, try guest mode
-        const isAuthError = err instanceof Error && 
+        const isAuthError =
-          (err.message.includes("403") || err.message.includes("401") || 
+          err instanceof Error &&
-           err.message.includes("auth") || err.message.includes("Forbidden"));
+          (err.message.includes("403") ||
+            err.message.includes("401") ||
+            err.message.includes("auth") ||
+            err.message.includes("Forbidden"));
 
         if (isAuthError) {
           console.warn("Auth failed, trying guest chat mode");