feat: Implement Stellar Account Risk Clustering

[Mosas2000]

Scope

Expand Bridge Watch with feat: Implement Stellar Account Risk Clustering. Define the required backend, data model, API, UI, operational behavior, and migration impact for this capability.

Acceptance criteria

• The feature has a documented API and persistence contract.
• Failure, retry, authorization, and observability behavior are covered.
• Existing consumers remain compatible or receive an explicit migration path.
• Unit, integration, and end-to-end coverage is added at the appropriate boundaries.
• Operational documentation explains rollout, rollback, and support procedures.

[apatafamilycompound123-ops]

@apatafamilycompound123-ops has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I’ve gone through the issue requirements and can implement a solution that meets the expected design and acceptance criteria.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @apatafamilycompound123-ops to this issue.

[therealjhay]

@therealjhay has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer, i would love to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @therealjhay to this issue.

[drips-wave]

Congratulations, @therealjhay! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

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Warning

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[drips-wave]

This issue has been completed by @therealjhay as part of the Stellar Wave Program's 8th Wave 🥳

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