Categorised History View for User Input and Generated Content

Current Situation:
Pastai currently stores all history in the left side menu without distinguishing between user-copied content and pastai-generated content.

Proposed Feature:
Implement a categorized history view that clearly separates and labels user input (copied context) from pastai-generated content.

Rationale:
Enhancing the visibility of different types of contexts will improve user experience by:

1. Providing clearer organization of historical data

2. Facilitating easier retrieval of specific content types

3. Enabling users to quickly differentiate between their own inputs and AI-generated outputs