- Enhanced the `Chat` model to include an `artifacts` field to hold associated artifacts.
- Updated the `AgentMessageTile` widget to display the number of artifacts and added functionality to trigger artifact downloads upon button press.
- Introduced a method in `ChatViewModel` to leverage the `ChatService` for artifact downloads.
Refactored the ChatViewModel's sendChatMessage method to utilize the continuousModeSteps setting from the SettingsViewModel. This allows the continuous chat mode to honor the user's preference from the settings. Also introduced an optional currentStep parameter with a default value, enabling better control over the progression of continuous mode.
Implemented auto-scrolling in the chat message list to ensure that the view scrolls down to the most recent message when a new chat is added. This behavior only triggers if the user is already at the bottom of the list, providing a seamless user experience.
