Add eUSD support to Bridger contract

[ylv-io]

Description

Type of change

• [ ] Bug fix
• [x] New feature
• [ ] Breaking change
• [ ] Dependency changes
• [ ] Deployment
• [ ] Forge Script
• [ ] Code refactor / cleanup
• [ ] Documentation or wording changes
• [ ] Other

Checklist:

• [ ] The diff is legible and has no extraneous changes
• [ ] Complex code has been commented, including external interfaces
• [ ] Tests have 100% code coverage
• [ ] The base branch is either main, or there's a description of how to merge

Issue Resolution