Update Python version to support all features from C# version (Issue #41)

[konard]

Summary

This PR updates the Python retranslator library to achieve feature parity with the C# version, resolving issue #41.

Key Features Added

🔧 Enhanced SubRule Class

• Compiled regex patterns for improved performance
• Enhanced options handling with proper regex compilation
• Improved string representation matching C# ToString() format
• Better timeout handling (where supported by regex library)

🐛 Enhanced Transformer Extensions

• get_steps() method - Returns list of transformation steps for debugging
• write_steps_to_files() method - Writes each transformation step to separate files
• TranslatorExtensions class - Provides utility methods similar to C# ITextTransformerExtensions

📝 LoggingFileTranslator

• Step-by-step debugging - Automatically writes transformation steps when processing files
• Debug file generation - Creates .rule.txt files showing which rule was applied at each step
• Enhanced debugging capabilities for complex transformations

🔄 Fixed SteppedTranslator Logic

• Corrected maximum repeat count behavior - Now properly handles unlimited (0) vs limited repeats
• Improved regex matching using compiled patterns
• Better performance through optimized regex operations

📦 Version and Packaging Updates

• Version bumped to 0.3.0 reflecting significant feature additions
• Updated Python version support (3.6+)
• Enhanced package description with better keywords
• Fixed import references throughout the codebase

Testing

✅ All existing tests pass
✅ Added comprehensive test script (test_new_features.py) demonstrating all new features
✅ Verified feature parity with C# implementation

Test Results

Testing new features in Python retranslator...

1. Testing improved SubRule with compiled regex:
Rule: "(\w+)\s+(\w+)" -> "\g<2> \g<1>" repeated up to 1 times

2. Testing get_steps() method:
Source: hello world
Transformation steps:
  Step 1: hi world
  Step 2: hi universe

3. Testing write_steps_to_files() method:
Debug files written with step-by-step transformation data

4. Testing LoggingFileTranslator:
Successfully creates debug files showing each transformation step

5. Testing maximum repeat count logic:
Input: 'a' with max_repeat=3
Output: 'aaaaaaaa' (8 a's) - Working correctly

✅ All new features working correctly!

Files Changed

• python/retranslator/sub_rule.py - Enhanced with compiled regex and better options
• python/retranslator/Translator.py - Added extension methods for debugging
• python/retranslator/stepped_translator.py - Fixed repeat count logic
• python/retranslator/translator_extensions.py - NEW: Extension methods for debugging
• python/retranslator/logging_file_translator.py - NEW: Logging capabilities
• python/retranslator/__init__.py - Updated exports and version
• python/setup.py - Version and metadata updates
• python/test_new_features.py - NEW: Comprehensive test script

Benefits

🎯 Complete C# feature parity - Python version now supports all C# features
🚀 Better performance - Compiled regex patterns improve speed
🐛 Enhanced debugging - Step-by-step transformation analysis
🔧 Improved maintainability - Better code organization and documentation

This resolves issue #41 and brings the Python implementation up to the same standards as the C# version.

🤖 Generated with Claude Code

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Resolves #41