Title: Add property test for vault claim event emission

[Emmyt24]

Description
Implement a property test proving vault claim operations always emit correct events.

Requirements and context

• Must be secure, tested, and documented where applicable
• Should stay reviewable and fit the current monorepo structure

Suggested execution

• Create branch: add-property-test-for-vault-claim-events
• Keep changes scoped to the issue and reference the task IDs in the PR

Implement changes

• Generate random vault claim scenarios
• Run at least 100 iterations and annotate Property 80
• Assert vlt_cl_v1 event is emitted on success
• Verify event contains correct vault_id, owner, and amount

Test and commit

• Run the most relevant tests for the touched service or UI surface
• Include event schema documentation
• Call out edge cases, assumptions, and any follow-up work

Example commit message

test: add vault claim event emission property

Guidelines

• Prefer small, reviewable PRs
• Keep naming and data contracts consistent with the spec docs
• Preserve responsive and accessible behavior for frontend work

---

[Xoulomon]

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

Hey Maintainer, I have gone through the details of the issue and i am capable of resolving it, I would love to be assigned to work on it ASAP. Thanks in advance

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

[drips-wave]

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

🧑‍💻 @Xoulomon: 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.

Warning

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.

🌊 Happy Wave 🌊