Fix Mermaid arrow visibility with defaultLinkColor

[kvnloo]

Change arrow/edge color from gray (#8B949E) to bright blue (#58A6FF) by adding the defaultLinkColor themeVariable which specifically controls flowchart arrow colors.

🤖 Generated with Claude Code

Description

Related Issues

Closes #
Related to #

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement
• Test update

SPARC Methodology Checklist

• Specification: Requirements clearly defined
• Pseudocode: Algorithm/logic designed before implementation
• Architecture: System design documented
• Refinement: TDD approach - tests written first
• Completion: Integration validated

Testing

• Unit tests pass (npm test)
• Integration tests pass
• Manual testing completed
• Code coverage maintained or improved

Test Coverage

Current coverage: XX%
Previous coverage: XX%
Change: +/- XX%

Code Quality

• Linting passes (npm run lint)
• Type checking passes (npm run typecheck)
• No new warnings introduced
• Code follows project style guide
• Files under 500 lines (per style guide)

Security

• No hardcoded secrets or credentials
• No SQL injection vulnerabilities
• Input validation implemented
• Dependencies scanned for vulnerabilities
• Audit logging added for sensitive operations

Documentation

• README updated (if applicable)
• API documentation updated (if applicable)
• Comments added for complex logic
• Context files updated (.claude/context/)
• PRD updated (if applicable)

Multi-Agent Coordination

• Agent coordination protocol followed
• Git worktree used for parallel work
• Memory hooks executed
• No file conflicts with other agents
• Session logs exported

Performance Impact

• No performance degradation
• Performance improved (describe how)
• Performance impact acceptable and documented

Screenshots/Demo

Additional Notes

Reviewer Checklist

• Code review completed
• Tests reviewed and adequate
• Documentation reviewed
• Security considerations verified
• Performance impact acceptable
• Ready to merge