track: Code coverage reporting implementation

[aRustyDev]

Overview

Track the implementation and improvement of code coverage reporting for all hook scripts.

Current Status

• ✅ Coverage workflow created (.github/workflows/coverage.yml)
• ✅ kcov integration configured
• ⚠️ Coverage currently at 0% (no hooks passing tests)

Goals

• Fix hook scripts to pass shellcheck
• Achieve 50% coverage
• Achieve 80% coverage target
• Add coverage badge to README
• Integrate coverage checks in PR reviews

Tracking Metrics

• Current coverage: 0%
• Target coverage: 80%
• Number of hooks tested: 3/26
• Number of test files: 6

Related PRs

• Initial coverage setup: (this commit)

Dependencies

• Depends on test: Add comprehensive test coverage for all hooks #27 (test coverage for all hooks)
• Blocks v1.0.0 release

Action Items

1. Fix shellcheck errors in hook scripts
2. Update tests to handle hook script issues
3. Add coverage badge to README
4. Configure coverage as required PR check

Milestone

Test Coverage 80%