Invariant Testing and Formal Verification Setup

[Cedarich]

Introduce property-based testing (Invariants) to ensure protocol-level rules are never violated, regardless of user input. Complexity: High (200 points)

[Nabeelahh]

@Nabeelahh has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi maintainer I have thoroughly read the description to this issue and I can resolve this according to the description required ensuring it meet all the acceptance criteria kindly assign....

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

[drips-wave]

Congratulations, @Nabeelahh! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @Nabeelahh: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

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