Improve Graph View Performance

[bbovenzi]

• Make it easier to navigate by restoring "Zoom to Task" button and increase minZoom to 0.01 for large dags
• Use Elk Worker to move calculation off the main thread
• Reduce number of times we're walking through all Nodes and Edges
• Simplify Node components by disabling unused callbacks
• Simplify elk graph calculation settings for large graphs (edge thoroughness and opting for simple placement)
• Turn off minimap for truly large dags (requires calculating the graph twice)

Closes #64970

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Was generative AI tooling used to co-author this PR?

• Yes Claude Sonnet 4.6

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