v0.3.0

FOC Engine v0.3.0

This release introduces a major new feature - a standalone event indexer - along with
comprehensive multi-network deployment support and various improvements to the
paymaster functionality.

🚀 New Features

Standalone Event Indexer

• New CLI command foc-engine index for independent event indexing from any Starknet
• Persistent BadgerDB storage with automatic crash recovery and resume functionality
• Real-time WebSocket processing with polling fallback
• HTTP API with pagination, filtering, ordering, and uniqueness constraints
• Full Kubernetes deployment support with persistent volumes and health checks

Multi-Network Deployment

• Sepolia & Mainnet support with dedicated deployment scripts
• Environment-specific resource configurations
• Streamlined deployment commands

🛠️ Improvements

• Enhanced error handling for AVNU paymaster endpoints
• Added getmessagehash functionality to paymaster gasless transaction building
• Improved project documentation and developer experience

📚 Documentation

• Updated README with detailed project information
• Added deployment instructions for multiple environments

🔧 Technical Details

• Storage performance: O(log n) indexed queries with multiple database indexes
• Efficient processing: Range processing (100 blocks per batch) with continuation
  tokens
• Crash resilience: Atomic block progress tracking prevents reprocessing
• Production-ready Docker and Helm configurations

Full Changelog: https://github.com/[your-repo]/foc-engine/compare/v0.2.1...v0.3.0