Line length violations

[gb119]

Description:

Some lines exceed the 119 character limit specified in pyproject.toml:

[tool.black]
line-length = 119

Impact:

• Minor readability issues on smaller screens
• Inconsistent with project standards
• May cause unnecessary diff churn when eventually formatted

Recommended Fix:

Run black formatter across the codebase:

python -m black src/ tests/ --line-length 119

Additional Recommendation:

Add pre-commit hooks to prevent future violations.