Integrate Letta AI for Stateful Agent-Based Chatbot Support in Chatwoot

Is your feature or enhancement related to a problem? Please describe. Chatwoot already supports chatbot integrations like Dialogflow and its own Captain AI agent for automating responses, but these options may lack advanced stateful memory management for long-term customer interactions. For example, users are often frustrated when handling ongoing support conversations where the AI forgets previous context across sessions, leading to repetitive questions and poorer user experiences. Letta provides open-source stateful AI agents with self-editing memory hierarchies, perpetual message history, and self-improvement capabilities, which could address this by enabling more persistent, context-aware support bots. Describe the solution you'd like I’d like Chatwoot to add native integration with Letta, similar to the existing Dialogflow integration. This could involve API hooks or webhooks where incoming customer messages from channels like live chat, email, or WhatsApp are routed to a…