Fix error when token invalid (#20972)

## Before

<img width="914" height="519" alt="image"
src="https://github.com/user-attachments/assets/8933bf9e-d8db-4670-ad08-69e900083fc1"
/>

## After

<img width="1105" height="523" alt="image"
src="https://github.com/user-attachments/assets/d8638dbb-adee-4b7d-9d29-1a2a0185ab4f"
/>

packages/twenty-server/src/engine/core-modules/jwt/services/jwt-wrapper.service.ts

@@ -137,7 +137,10 @@ export class JwtWrapperService {
     const payload = this.decode<JwtPayload>(token, { json: true });
 
     if (!isDefined(payload)) {
-      throw new AuthException('No payload', AuthExceptionCode.UNAUTHENTICATED);
+      throw new AuthException(
+        'Token invalid.',
+        AuthExceptionCode.UNAUTHENTICATED,
+      );
     }
 
     const { key, algorithm } = await this.resolveVerificationKey(token);