- Updated `AgentSettings` model to serve as a singleton container, removing unnecessary fields and adding an `updated_at` timestamp.
- Introduced `AgentPrompt` model to manage instruction prompts associated with agent settings.
- Enhanced `AgentSettingsAdmin` to include inline management of prompts, improving the admin interface for better usability.
- Created migrations to reflect the updated model structure and ensure database integrity.
- Created `Agent` app including models, admin configuration, and migrations for managing agent settings.
- Introduced `AgentSettings` model to store configuration parameters such as system prompt and model settings.
- Implemented `AgentSettingsAdmin` to provide a singleton admin interface for managing agent configurations.
- Registered the app in the project settings for integration.