Add the ability to mark and filter distinct topics within a single conversation session. This would help users focus their questions and analysis on specific parts of the conversation without mixing unrelated topics.

Key Features Needed:

* A "New Topic" button to mark when the conversation transitions to a different subject

* Automatic identification and display of main topics discussed (e.g., A, B, C list in the UI)

* Ability to select one or more topics as context for interactions with Hedy

* Topic-specific filtering for all existing features (summaries, highlights, question-answering, etc.)

Example Use Case:

If a conversation covers multiple topics like "planning a walk", "discussing a movie", and "family relationships", users could:

* See these topics clearly listed in the UI

* Select just "planning a walk" to get a summary of that specific discussion

* Use Hedy's decision-making help focused solely on the selected topic

* Avoid mixing unrelated topics in Hedy's responses

This would make it easier to analyze and reference specific parts of longer conversations with multiple topic changes.

(Submitted via email from Patrick)