Analyze Test Coverage Impact of PR

Analyze test coverage impact when a PR is updated:

1. Checkout the PR branch

2. Run test coverage: npm run test:coverage

3. Compare coverage to main branch:

   • Lines added with coverage
   • Lines added without coverage
   • Files with decreased coverage
   • New files with low coverage

4. Generate a coverage impact report showing:

   • Coverage change percentage
   • Files with added uncovered code
   • Critical gaps in new functionality
   • Suggestions for missing tests

5. Post results as PR comment with:

   • Overall coverage impact (↑ or ↓)
   • File-by-file breakdown
   • Specific line ranges needing tests
   • Recommendations for test additions

Color code the feedback:

• 🟢 Coverage improved
• 🟡 Coverage maintained
• 🔴 Coverage decreased
• ⚫ New code without tests

Help maintain test quality standards without blocking the PR.