DBEX: assign toxic exposure submit endpoint & metadata

[freeheeling]

• Follow-on to DBEX: Form526Submission submit_endpoint data migration #16693

Summary

• This work is behind a feature toggle (flipper): YES/NO: disability_526_toxic_exposure
• Evaluates Flipper set for current user, assigning boolean value of a includeToxicExposure metadata attribute for a newly created in progress form, to be utilized on the frontend in tracking and reporting the inclusion of the toxic exposure section for the form
• A submission whose submit_endpoint attribute is set to 'claims_api' (implemented in previous PR update) is handled similarly to that of a user whose disability_compensation_lighthouse_submit_migration Flipper is enabled
• Conditionally sets options argument based on disability_526_toxic_exposure Flipper state for the current user, determining ultimate Lighthouse API submit endpoint ('/526' or '/526/generatePDF')
• Responsible team: Disability Benefits Experience Team 2 (dBeX Carbs 🥖)

Related issue(s)

• Support two versions of 526; one without TE and one with TE fields va.gov-team#81830
• DBEX: add submit_endpoint to form526_submissions #16689
• DBEX: Form526Submission submit_endpoint data migration #16693

Testing done

• unit test enablement of toxic exposure feature flag
• local data manipulated to confirm expected results
• plan to target staging users for additional verification

What areas of the site does it impact?

• Form 526EZ

Acceptance criteria

• I fixed|updated|added unit tests and integration tests for each feature (if applicable)
• Neither error nor warning in the console
• Events are being sent to the appropriate logging solution
• Documentation has been updated (link to documentation)
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Feature/bug has a monitor built into Datadog or Grafana (if applicable)
• If app impacted requires authentication, did you login to a local build and verify all authenticated routes work as expected
• I added a screenshot of the developed feature

[sethdarragile6]

thank you 😏