Fine-tuning dashboard adds a Metrics tab with live training curves and run comparison

Fine-tuning jobs now have a Metrics tab in the web dashboard that charts training progress. Metrics stream in live while a job runs and stay available after it completes.

What's new:

• Live training curves: Watch training loss, learning rate, and gradient norm update as the job trains, without leaving the dashboard.
• Preference-tuning metrics: DPO and other preference jobs add reward accuracy, reward margin, chosen and rejected rewards and log-probabilities, and approximate KL.
• Interactive charts: Zoom and pan across all charts on a shared step axis, switch the x-axis between step and time, toggle linear or logarithmic scales, and sync a hover crosshair across every metric.
• Compare runs: Overlay metrics from multiple jobs to compare fine-tuning runs side by side.