chore(webui): Metrics filtering improvements

[will-holley]

• Don't show metrics selector unless there are >1 metrics to filter by
• Fixes incorrect metric result "X out of Y" counts (X is the number of rows while Y is calculated by the number of test cases * prompts)

[use-tusk]

✅ Generated 2 tests - 2 passed (70253a3) View tests ↗

View output in GitHub ↗

Test Summary

• ResultsView - 2 ✅

Results

Tusk's tests validate the updated metrics filtering logic in the PR. Both tests pass, confirming that the MetricFilterSelector is correctly hidden when only one metric is available, while still showing the FiltersButton when multi-metric filtering is enabled. This ensures the UI remains clean by removing unnecessary controls when they don't provide value.

Key points:

• Tests cover the core UI behavior change in ResultsView component
• Validates both standard and feature-flag enabled paths
• Confirms we're not showing useless UI elements to users when there's only one metric
• Important for UX since this component is on the main evaluation results page
• Edge case with feature flag + single metric is properly handled

View check history

Commit	Status	Output	Created (UTC)
d17a643	✅ Generated 2 tests - 2 passed	Tests	Jul 17, 2025 10:10PM
70253a3	✅ Generated 2 tests - 2 passed	Tests	Jul 18, 2025 7:20PM

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