💳 Pain001 Financial Standards Library Enhancement

[sebastienrousseau]

Overview

Comprehensive enhancement of the Pain001 library with modern Python features and expanded financial standards support.

Standards Compliance (P0)

• Update to latest ISO 20022 specifications
• Add support for all pain.001 variants (001, 002, 003, etc.)
• Implement comprehensive XML schema validation
• Add regulatory compliance checking by region
• Create automated standard conformance testing

Performance Optimization (P1)

• Optimize XML parsing and generation performance
• Implement async/await for I/O operations
• Add streaming processing for large files
• Implement memory-efficient batch processing
• Add multiprocessing support for bulk operations

API Enhancement (P1)

• Create fluent API for message construction
• Add comprehensive type hints throughout
• Implement dataclasses for message structures
• Add context managers for resource management
• Create builder patterns for complex messages

Integration Features (P2)

• Add database integration (SQLAlchemy models)
• Create REST API endpoints with FastAPI
• Implement message queue integration
• Add cloud storage support (S3, Azure, GCP)
• Create webhook support for real-time processing

Security & Validation (P2)

• Add digital signature verification
• Implement encryption/decryption capabilities
• Add comprehensive input validation
• Create security audit logging
• Implement rate limiting and DoS protection

Developer Experience (P3)

• Add comprehensive documentation with examples
• Create interactive Jupyter notebook tutorials
• Implement pytest test suite with coverage
• Add mypy static type checking
• Create automated release pipeline with CI/CD