[A11y] 4.1.2 Name, Role, Value – Redundant hidden instructions on Provide Evidence

Split from #381, which reported five separate problems under one ticket.

Tester has observed that on the 'Provide Evidence' page, the user is directed to hidden instructions, which are redundant because the instructions are already visible on the page.

This does not comply with WCAG Level A 2.2:
4.1.2 Name, Role, Value - https://www.w3.org/WAI/WCAG22/Understanding/name-role-value.html

Steps to Recreate:

1. Navigate to URL
2. Navigate to the file upload control with a screen reader enabled
3. Observe issue

This has been observed on the following pages:

• Provide Evidence

Environment:
Windows 11 - Chrome 151 - JAWS (desktop screen reader)

Reproduction rate:
100% - Consistently reproducible.

Supporting material:
Video: https://drive.google.com/drive/folders/1Ph21Q5-UlnfnvKJ1zQQA-K5uM-WY14X2?usp=sharing

Version: https://check-performance-data-preproduction.teacherservices.cloud/

2.Major Impact on Accessibility

Where to look: the file input in Views/Journey/_FileUpload.cshtml sets aria-describedby (built by QuestionPartialModel.DescribedBy) pointing at #fileUpload-hint, which is the same hint text shown on screen. Repeating a visible hint through aria-describedby is the standard GOV.UK pattern, so confirm with the auditor which text is actually duplicated before removing anything. Note the rule in docs/accessibility.md: aria-describedby may only name ids that are rendered, so the id list and the markup must change together.

Priority: High
DoneDone issue: https://zoonou.mydonedone.com/issuetracker/projects/91343/issues/8

Parent: #373. Split from: #381

Start with the file input in Views/Journey/_FileUpload.cshtml and review how QuestionPartialModel.DescribedBy builds aria-describedby for #fileUpload-hint. Read docs/accessibility.md, confirm with the auditor which text is duplicated, and keep the id list and rendered markup consistent. Done means the redundant instruction is resolved without referencing an unrendered id.