Add optional ruff check --fix support to ruff-format target

[jensens]

Summary

Adds optional ruff check --fix support to the ruff-format target, allowing automatic fixing of linting issues alongside code formatting.

Closes #61

Changes

• New Settings:

  • RUFF_FIXES (default: false) - Enable/disable ruff check --fix when running ruff-format
  • RUFF_UNSAFE_FIXES (default: false) - Enable unsafe fixes when RUFF_FIXES is enabled

• Enhanced ruff-format target: Conditionally runs ruff check --fix based on settings

• Improved output: Echo messages show actual flags being used for transparency

• Test coverage: Added test_ruff_domain_settings to verify new settings

Behavior

RUFF_FIXES	RUFF_UNSAFE_FIXES	Result
false (default)	*	Only ruff format (current behavior)
true	false (default)	ruff format + ruff check --fix
true	true	ruff format + ruff check --fix --unsafe-fixes

Usage Examples

# Default: format only (backward compatible)
make ruff-format

# Enable safe auto-fixes
RUFF_FIXES=true make ruff-format

# Enable all fixes including unsafe
RUFF_FIXES=true RUFF_UNSAFE_FIXES=true make ruff-format

# Part of format target
RUFF_FIXES=true make format

Output Examples

$ RUFF_FIXES=true make ruff-format
Run ruff format
Run ruff check --fix

$ RUFF_FIXES=true RUFF_UNSAFE_FIXES=true make ruff-format
Run ruff format
Run ruff check --fix --unsafe-fixes

Testing

• ✅ All 32 tests pass (including new test)
• ✅ Non-breaking change - defaults maintain current behavior
• ✅ Manual testing verified all three scenarios work correctly

Notes

This is a non-breaking, opt-in feature. Users must explicitly set RUFF_FIXES=true to enable the new behavior.