feat(cli): add [INFO] log prefix, fix verdict icons, show score %

[christso]

Summary

Closes #1073

• Fix verdict icons: completed tests with FAIL verdict now show ⚠️ instead of ✅, and ERROR shows ❌
• Show scores as percentages (75%) instead of decimals (0.750)
• Show resolved target name when default is a use_target redirect (e.g., default → copilot)
• Replace grouped "Copilot CLI logs:" heading with per-line Provider log: prefix that stays meaningful when interleaved

Before

Using target: default
0/11   🔄 queue-no-requirements | default
1/11   ✅ some-failing-test | default | 0.500 PASS

Copilot CLI logs:
1. /path/to/log1
2. /path/to/log2

After

Using target: default → copilot
0/11   🔄 queue-no-requirements | default → copilot
1/11   ⚠️ some-failing-test | default → copilot | 50% FAIL
2/11   ❌ broken-test | default → copilot | ERROR
Provider log: /path/to/log1
Provider log: /path/to/log2

Test plan

• All 2123 tests pass (1613 core + 67 eval SDK + 443 CLI)
• Build, typecheck, lint all pass
• Manual UAT: dry-run eval confirms icons (✅/⚠️/❌), percentage scores, resolved target names, and clean summary block

🤖 Generated with Claude Code

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