[Feature Request] Improve callback graph

[jjaraalm]

Right now the callback graph is somewhat useful for identifying logical flow issues, but I think it could be greatly improved if it could be dynamic rather than static.

Possible improvements

• Zoom in/out functionality for large/complex callback chains
• Callback graph accessible from a dedicated url (maybe this already exists?) in addition to an overlay so that you can do test interactions while examining the callback graph
• Distinguish between clientside and serverside callbacks using different node colors.
• Report profiling information
  • Number of times a callback was invoked per node
  • Time spent (total or average) in the callback. Maybe link to the node color?
  • Label each edge with the number of times that input triggered a callback
• Live debugging
  • Highlight currently executing callbacks and modified outputs
  • Probe the last input/output by hovering/focusing an edge

For live debugging, I'm thinking something similar to the Labview execution highlighting if you've ever used it. When you turn on debugging mode, callbacks intentionally get a delay injected into them to slow everything down so you can visually watch and inspect the logical flow. Like this: