Add contract-level tests for route payload schemas

[gelluisaac]

Title

Add contract-level tests for route payload schemas

Summary

Testing / quality-engineering gap to close.

Context

Traqora is a decentralized travel-booking platform built on the Stellar ecosystem: Soroban smart contracts handle booking, refunds, disputes and loyalty, with a Node/Express backend and a React client. This is a contributor-friendly task for the community. Please ask in the discussion before starting and reference this issue in your PR.

Task

Assert that API request/response payloads match the documented schema (OpenAPI) for the main booking, refund, and auth routes.

Suggested files / areas

packages/backend/src/api/schemas, packages/backend/src/api/openapi

Acceptance Criteria

• Tests are added and pass in CI
• Edge cases covered
• No decrease in existing coverage

Difficulty: Medium

This issue is ideal for a first-time contributor. Comment to claim it and maintainers will assign you.

[adewaleomolara522-coder]

@adewaleomolara522-coder has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi Maintainer, I understand the problem and am confident I can provide a high quality fix, kindly assign this issue to me thanks

ℹ️ Repo Maintainers: To accept this application, review their application or assign @adewaleomolara522-coder to this issue.