323ec29b02
- Added WebChatSession model for managing user sessions. - Introduced methods for creating, retrieving, updating, and deleting WebChat sessions in the database. - Updated core lifecycle to include migration from version 4.6 to 4.7, creating WebChat sessions from existing platform message history. - Refactored chat routes to support new session-based architecture, replacing conversation-related endpoints with session endpoints. - Updated frontend components to handle sessions instead of conversations, including session creation and management.