feat(cli): show eval progress durations in ms

[christso]

Summary

• show compact timing on completed/failed eval progress lines as τ agent/totalms when both metrics are available
• thread durationMs and evalRun.durationMs through core progress events into the CLI progress display
• normalize the displayed total so it never renders lower than the displayed agent duration
• add focused progress display tests for compact formatting, normalization, and missing-metrics behavior

Closes #1186.

Root Cause

The eval runner already computed both per-agent duration (result.durationMs) and full eval duration (result.evalRun.durationMs), but the progress event shape and CLI formatter dropped those values before rendering the completed result line. Once surfaced, the raw numbers could still be misleading because provider-reported agent duration can exceed local wall-clock eval timing for mock or remote targets.

Validation

• bun test apps/cli/test/commands/eval/progress-display.test.ts
• bun test apps/cli/test/commands/eval/statistics-inconclusive.test.ts
• bun --filter @agentv/core typecheck
• bun --filter agentv typecheck
• git push pre-push hook passed: build, typecheck, lint, test, validate example evals

Red/Green UAT

Command used in both cases:

NO_COLOR=1 bun apps/cli/dist/cli.js eval examples/features/execution-metrics/evals/dataset.eval.yaml --target mock_metrics_agent --test-id simple-thresholds-pass --workers 1

Before (main):

0/1   🔄 simple-thresholds-pass | mock_metrics_agent
1/1   ✅ simple-thresholds-pass | mock_metrics_agent | 100% PASS

After (feat/1186-progress-durations-ms):

0/1   🔄 simple-thresholds-pass | mock_metrics_agent
1/1   ✅ simple-thresholds-pass | mock_metrics_agent | 100% PASS | τ 245/245ms

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