First settings upload

After installation, the client must receive current project configuration. Perform this after the connection check succeeds.

1. Verify domain, languages, servers, SMTP, payment profiles, theme, and modules.
2. Open the project and review General, Site, Cabinet, Visualization, and Payments.
3. Save changed tabs.
4. Run the standard settings upload and wait for successful application.

Open the client in a private window and test branding, languages, both themes, registration, sign-in, game servers, and test-only payments. Run the connection check again. Use the same upload process after later changes; do not edit generated production database values directly.