Pathway UI Update

Complete redesign of the pathway testing interface with resizable panels, advanced debugging capabilities, and conversation branching.

• Drag to resize panels or open floating windows, and pin key messages for quick access, with your layout preferences saved between sessions - Branch new conversation paths from any message during testing to explore alternate scenarios without restarting - Toggle detailed execution logs showing secondary actions (loop conditions, variable extractions, routing) - Run test simulations on historic calls using your drafted node changes