refactor: use webhook event aggregate in receive flow

[proxynth]

Description

Use webhook event aggregate in receive flow

Related Issue

Fixes #

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📝 Documentation update
• 🔧 Configuration change
• ♻️ Refactoring (no functional changes)
• ✅ Test update

Checklist

• I have read the CONTRIBUTING guidelines
• My code follows the project's coding standards
• I have run composer format to format my code
• I have run composer analyse and fixed any issues
• I have added tests that prove my fix/feature works
• All new and existing tests pass (composer test)
• I have updated the documentation (if applicable)
• I have updated the CHANGELOG.md (if applicable)

Screenshots / Output

Additional Notes