feat: Add Bitcoin agent and related configurations

[jravenel]

Description

This PR introduces a comprehensive Bitcoin agent that provides users with a natural language interface to Bitcoin-related information, price data, and transaction analysis. It includes several integrated components forming a complete solution.

Key Features

1. Bitcoin Agent

• Created a specialized agent with Bitcoin-specific knowledge and capabilities
• Implemented model selection framework to support multiple LLM providers
• Added tools for price queries, transaction analysis, and educational content

2. Analytics Module

• Implemented Bitcoin price data fetching from reliable sources
• Added price chart generation with customizable parameters
• Created price history visualization with trend analysis

3. Transaction Capabilities

• Added transaction simulation for testing and demonstrations
• Implemented blockchain data integration for real transaction analysis
• Created semantic data modeling using the Bitcoin ontology

4. Query Processing

• Implemented natural language query processing for Bitcoin data
• Added SPARQL query support for semantic querying
• Created structured API endpoints for programmatic access

5. Testing and Validation

• Built a robust price validation framework to ensure accuracy
• Implemented multi-source consensus validation
• Added automated tests with configurable tolerance levels
• Created test result storage for auditing and trend analysis

6. Documentation and Examples

• Added comprehensive README with usage examples
• Created example files demonstrating key features
• Documented supported queries and expected responses

Code Structure

The implementation follows a modular design with the following components:

/src/custom/bitcoin/
├── agent/              # Bitcoin agent implementation
├── analytics/          # Bitcoin price analytics and charts
├── integration/        # Bitcoin blockchain integration 
├── models/             # Model provider for Bitcoin NLP
├── pipeline/           # Data pipelines for Bitcoin transactions
├── tests/              # Testing and validation tools
└── workflow/           # Bitcoin agent workflows

Testing

All components have been thoroughly tested:

• Unit tests for core functionality
• Integration tests for component interaction
• Price validation tests against external sources
• Manual testing of query processing

The implementation includes Makefile targets for easy testing:

make test-bitcoin-price     # Test against single source
make test-bitcoin-consensus # Test against multiple sources

Related Issues

Closes #XXX (Bitcoin Agent Implementation)
Relates to #YYY (Specialized Agents Framework)

Screenshots

TBD