Design Long-term Personalization Module

Extend the Mastra AI agent's memory to include a long-term personalization module. This module should persist user preferences and interaction history (e.g., favorite coffee order, frequent contacts) across sessions. Design how the agent accesses and updates this memory to inform future interactions and tool calls. Consider using a simple file-based or in-memory key-value store for persistence, demonstrating how Mastra AI's memory system can be extended.