Improve UX for editing hierarchical agent workflows

Current UX patterns for editing deeply nested agent workflows are not intuitive. Users struggle to manage hierarchy, context, and transitions when working with multi-level workflows.

This limits the usability of FlowDrop for advanced use cases such as AI agents and subroutines.

Task:

• Research UI patterns for hierarchical workflow editing (e.g. zoom-in, breadcrumb, tabs)
• Prototype alternatives and evaluate user feedback