[DEVIN: Konsti] Add isAnonymous to BaseUser interface and implementation (#577)

Add isAnonymous property to the user object that is returned by the
functions in stack-app.

The User CRUD type already has is_anonymous, this PR adds it to the
BaseUser interface and updates the _createBaseUser method to include it.

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Konstantin Wohlwend <n2d4xc@gmail.com>

packages/template/src/lib/stack-app/apps/implementations/client-app-impl.ts

@@ -797,6 +797,7 @@ export class _StackClientAppImplIncomplete<HasTokenStore extends boolean, Projec
       oauthProviders: crud.oauth_providers,
       passkeyAuthEnabled: crud.passkey_auth_enabled,
       isMultiFactorRequired: crud.requires_totp_mfa,
+      isAnonymous: crud.is_anonymous,
       toClientJson(): CurrentUserCrud['Client']['Read'] {
         return crud;
       }

packages/template/src/lib/stack-app/users/index.ts

@@ -147,6 +147,7 @@ export type BaseUser = {
   readonly passkeyAuthEnabled: boolean,
 
   readonly isMultiFactorRequired: boolean,
+  readonly isAnonymous: boolean,
   toClientJson(): CurrentUserCrud["Client"]["Read"],
 
   /**