v0.2.0 - Phase 2 Release: Add 5 New LLM Text Processing Methods

🚀 Major Feature Expansion - From 4 to 9 Methods!

This Phase 2 release dramatically expands ruby_llm-text with 5 new methods for advanced text processing

✨ New Methods Added

• fix_grammar - Grammar and spelling correction with optional change explanations
• sentiment - Sentiment analysis with confidence scores and custom categories
• key_points - Extract main points from long text with format options (bullets, numbers, sentences)
• rewrite - Transform text tone and style (professional, casual, academic, creative, etc.)
• answer - Question answering against provided text with boolean question detection

🎯 Enhanced Features

• Enhanced Configuration - Per-method model configuration for all Phase 2 methods
• Resilient JSON Parsing - Robust parsing with fallback mechanisms for varied LLM response formats
• Extended String Extensions - All Phase 2 methods available as String monkey-patches
• Comprehensive Manual Testing - Updated test script covering all 9 methods with real API calls
• Complete Documentation - Comprehensive README with API reference for all methods