Fix Frontdesk branding on SSO error pages and document SSO secret handling.

Use signed_out config for auth error views instead of hardcoded Ladill CRM assets left from the CRM template.

Co-authored-by: Cursor <cursoragent@cursor.com>

DEPLOY.md

@@ -40,6 +40,9 @@ php artisan config:cache
 Copy `.env.example`, set `APP_KEY` (`php artisan key:generate --show`), DB creds, SSO
 client id/secret, billing + identity keys, and `SERVICE_EVENTS_INBOUND_SECRET`.
 
+**SSO secret:** use the plain-text value printed once by `passport:client` — never copy
+`oauth_clients.secret` from the database (Passport stores a bcrypt hash there).
+
 ## 5. nginx + TLS
 
 ```bash