feat: v2 architecture

[sliedig]

Issue number:
N/A

Summary

The following PR has the changes that have been implemented to date for version 2 of the Unicorn Properties architecture.

Changes

• Contract service addresses distributed transaction issue through a EventBridge pipes implementation.
• Contract service using async invokes to handle agent commands to create and update contracts. Using API Gateway to SQS integration
• Moved to a multi-bus EventBridge topology. Each service now has their own event bus.
• Unicorn Web service using async invokes to handle agent commands to create and update contracts. Using API Gateway to SQS integration
• much more, enhancements and fixes

User experience

Please share what the user experience looks like before and after this change

Checklist

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• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

Acknowledgment

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