Guide my installed Cursor through a MandAPI chat setup using its application settings. Check that the build exposes API Keys and Override OpenAI Base URL, and whether team policy permits personal keys. Use https://api.mandapi.com/v1 and the exact MandAPI MODEL_ID I choose. Enter the key only in the credential interface, never in the repository or chat. Explain that Tab and some agent features can use Cursor's own service. Preserve previous settings, start a new chat with the selected model, and guide a small read-only example plus the MandAPI usage check. If Cursor's model-name routing selects another credential slot, diagnose it without inventing an upstream alias. Report how to restore the old provider.