The conversation history preview bar is nearly unusable when jumping between conversations, as it displays too little information.

As shown in the figure above, just widen it a bit.
- It would be preferable to directly summarize into subheadings using the tool model, though this may cause token consumption to exceed limits.
- The click-to-navigate UX isn't ideal. The horizontal lines are too dense, making mouse clicks unfriendly. Adding a hover-to-zoom effect would be preferable.