feat: DEP for AIPerf Visualization Feature and Plot Command

[ilana-n]

Add AIPerf Visualization Feature Design Plan

Proposes aiperf plot command to generate visualizations from profiling results.

Key features:

• Three visualization modes: static PNG (default), interactive HTML (offline), and live server dashboard
• Auto-detects multi-run comparison vs single-run analysis
• Supports all AIPerf metrics with configurable plot presets
• User configuration via ~/.aiperf/config.yaml

Includes:

• Complete design specification with requirements and architecture
• Configuration examples for custom plot definitions
• Visual mockups showing example outputs
• Design plan template and reference materials

This addresses the common need to visualize performance metrics, compare runs, and analyze trade-offs without external tools.

[lkomali]

Good job on detailing the project. Liked the idea of interactive plots.
I have some comments, open to discuss.

In general, my opinion is that analyze and plot should be decoupled.

• profile will benchmark and generate results. Users might want to visualize individual runs as well as compare across runs.
• analyze will sweep across different values for a parameter and provide results. Users running analyze may or may not want to visualize their results.
• plot should be able to visualize results coming both the above subcommands. Users should be able to visualize given a set of result files irrespective of the step before ran profile or analyze command.

[coderabbitai]

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[the-david-oy]

This is a great proposal.

[lkomali]

I'm halfway through it, but really good design.
Have a couple of small comments.
Will take another pass for the other half.

[lkomali]

LGTM

Great work @ilana-n