Release v4.0.4

Release v4.0.4

This release adds a comprehensive configuration system for customizable evaluation behavior, performance optimizations, and code refactoring improvements.

✨ Features

• Comprehensive configuration system for evaluation behavior
  • Configurable numeric coercion (empty strings, booleans, null values)
  • Configurable loose equality behavior (strict vs lenient type comparisons)
  • Configurable NaN handling in arithmetic operations
• New DataLogicConfig struct with builder pattern for easy customization
• Configuration example added to demonstrate usage

⚡ Performance Improvements

• Optimized context metadata keys and value access paths
• Refactored code to use let-chains for cleaner, more efficient pattern matching
• Improved reference handling to avoid unnecessary cloning

🐛 Bug Fixes

• Handle numeric indices in val operator with level access
• Fix reduce operator with nested properties having numeric parent names

📚 Documentation

• Added comprehensive configuration example
• Updated README with configuration documentation

🔧 Technical Details

• 17 files changed, 1203 insertions(+), 163 deletions(-)
• New modules: src/config.rs
• New tests: tests/config_test.rs with 406 lines of configuration tests
• New examples: examples/configuration.rs