Burial | Update Vets API for form submission

[ToddWebDev]

Update vets-api so that Form Can Be Submitted with New Schema

Description

Following the updates to the Location of Death page in the Burial Benefits form (21P-530EZ), the vets-api must be updated to accept and process submissions that follow the new schema structure. This ensures that applicants can successfully submit their applications without encountering validation errors.

Vets JSON Schema PR

• Update burial schema vets-json-schema#971

Acceptance Criteria

• Update the vets-api schema to align with the new Location of Death form structure.
• Ensure that all location details are correctly mapped and stored in the backend.
• Validate that form submissions using the updated schema do not fail due to mismatches with the API schema.
• Maintain backward compatibility where possible to prevent issues with in-progress applications.
• Add or update automated tests to confirm proper handling of the updated data structure.

Technical Implementation

• Modify the vets-api form schema definition to reflect the new Location of Death field structure.
• Adjust any related data transformations to support the updated format.
• Update validation logic to ensure correct submission handling.
• Add unit tests to verify API behavior with both new and existing form data.

Next Steps

• Deploy changes and monitor logs for submission errors related to Location of Death updates.
• Coordinate with frontend engineers to verify end-to-end functionality.