Documentation: Add complete environment variable reference by service

[Junirezz]

Summary

Documentation work item for YieldVault RWA: Documentation: Add complete environment variable reference by service.

Problem

Current implementation does not fully cover this capability in a production-hardened way.

Proposed Solution

Implement this task with test coverage and documentation updates where applicable.

Acceptance Criteria

• Implementation completed and reviewed
• Tests added or updated (unit/integration/e2e as applicable)
• Relevant documentation updated
• CI checks pass with no regressions

Priority

Medium

[kureyoungabare-hub]

@kureyoungabare-hub has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would like to work on this issue because it aligns with my experience and interest in open-source development. I have experience with JavaScript, TypeScript, React, Node.js, Git, and REST APIs, and I enjoy building clean, maintainable, and well-tested solutions. Thank you for considering my application.

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

[drips-wave]

Congratulations, @kureyoungabare-hub! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @kureyoungabare-hub: 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 🌊