Title: Add property test for Stellar example code inclusion

[temma02]

Description
Implement a property test proving generated templates include example code for common Stellar operations.

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-stellar-example-code-inclu
• Keep changes scoped to the issue and reference the task IDs in the PR

Implement changes

• Generate templates across all types
• Run at least 100 iterations and annotate Property 49
• Assert example code for payments, assets, etc. is present

Test and commit

• Run the most relevant tests for the touched service or UI surface
• Include screenshots or request/response examples when the change is user-facing
• Call out edge cases, assumptions, and any follow-up work

Example commit message
test: add stellar example code property

Guidelines

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

[JohnOluB]

@JohnOluB has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I'll write a property test that generates templates across all types, runs 100+ iterations, and asserts example code for common Stellar operations (payments, assets, etc.) is present in each — annotated as Property 49. Scoped, no side effects on other tests.

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

[GoSTEAN]

@GoSTEAN has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Can i work on this?

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

[drips-wave]

Congratulations, @GoSTEAN! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

🧑‍💻 @GoSTEAN: 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 🌊