Summary

• Fixes issue where exclude patterns like --exclude 'configgen' had no effect
• Enhances exclude pattern matching with multiple matching strategies
• Applies exclude logic consistently in both sort-only and regular diff modes

Changes

• ✅ Substring matching: --exclude "target" excludes files with "target" anywhere in path
• ✅ Glob pattern matching: --exclude "*.tmp" works against full file paths
• ✅ Path component matching: Matches against individual directories and filenames
• ✅ Comprehensive filename matching: Enhanced pattern matching for file names
• ✅ Consistent application: Works in both sort-only and regular diff workflows

Before vs After

Before (broken):

# This had no effect
./yabe --sort-only -p "**/*.yaml" --exclude "target"

After (working):

# Now excludes all files with "target" in the path
./yabe --sort-only -p "**/*.yaml" --exclude "target"
# Excluded 52 files based on exclude patterns

# Also supports complex patterns
./yabe -p "**/*.yaml" --exclude "*/temp/*" --exclude "build" --exclude "*.secret.yaml"

Test plan

• All tests pass (23/23)
• Exclude functionality verified with test files
• Multiple exclude patterns work correctly
• Both sort-only and regular modes support exclusions

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