feat: trait based design

[suchapalaver]

Pull Request

Description

Brief description of what this PR does.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Code cleanup/refactoring

Related Issues

Fixes #(issue number)

Changes Made

Testing

• I have added tests that cover my changes
• All new and existing tests pass locally with my changes
• I have tested the examples and they work correctly

Code Quality

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new compiler warnings
• I have run cargo clippy and addressed any issues
• I have run cargo fmt to format my code

Documentation

• I have updated the documentation accordingly
• I have updated the README if needed
• I have added docstrings to new public functions/methods
• My changes don't break existing documentation

Security

• My changes don't introduce any security vulnerabilities
• I have considered the security implications of my changes
• I have not exposed any sensitive information (keys, tokens, etc.)

CCTP Specific

• I have tested against the correct CCTP contract addresses
• I have verified domain IDs are correct for new chain support
• I have tested attestation flow if applicable
• My changes maintain compatibility with Circle's CCTP protocol

Additional Notes

Any additional information or context about the PR.