Update pr-metrics.yml

[kenjudy]

Separate out prod code from test code for analysis.

[github-actions]

PR Size Analysis

Size: large (based on production code)

Production Code: 280 lines (1 files)
Test Code: 0 lines (0 files)
Total: 280 lines (1 files)
Test-to-Production Ratio: 0.00:1

Size Concerns:

• 📏 Large production changes - review carefully

Test Coverage Analysis

Test Adequacy: poor

Test Coverage Concerns:

• ❌ No test changes for production code modifications
• ⚠️ Significant production changes without corresponding tests

Test Coverage Guidelines:

• Target ratio: 0.5-2.0 test lines per production line
• Minimum: Some test changes for any production code modifications
• Best practice: Write tests first (TDD) when adding new features

Note: Size analysis focuses on production code changes. Test adequacy is evaluated separately.

Automated by PDCA Framework