This PR introduces real-time error percentage tracking during benchmarking and surfaces it in the UI, along with updated documentation.

[trcjr]

Summary

This PR introduces real-time error percentage tracking during benchmarking and surfaces it in the UI, along with updated documentation.

What’s Changed

• Backend

  • Added error_percent to SampleProgress
  • Enables real-time calculation and reporting of error rates during runs

• Frontend

  • Displays live error percentage in the benchmarking UI
  • Updates dynamically as samples are processed

• Types / Models

  • Updated shared types to support error_percent across the stack

• Documentation

  • README updated to document:
    • Live error percentage behavior
    • Configurability
    • Test failure thresholds

Why

• Provides immediate visibility into benchmark quality
• Helps identify instability or failure conditions earlier
• Makes failure thresholds more transparent and actionable

Notes

• No breaking changes expected
• Existing workflows continue to function as before, with additional visibility into error rates