Veda job application form page

[Charitha2009]

Description

Related PRS (if any):

This backend PR is related to the #4958 frontend PR.

Main changes explained:

• New submit API — Adds POST /api/jobforms/:formId/responses so applicants can submit job applications (not on development today).
• Multipart upload support — Accepts resume and question file attachments via multer, alongside a JSON payload with answers and profile info.
• Public access — Skips auth middleware for that POST route so unauthenticated users can apply.
• Data storage — Saves submissions to jobApplicationsModel with question answers, file metadata, and applicant profile details.

How to test:

1. check into current branch
2. do npm install and ... to run this PR locally
3. Clear site data/cache
4. log as admin user
5. go to http://localhost:5173/collaboration
6. Click Apply on any listed job
7. Verify the Job Application Form page loads internally
8. Confirm the job title appears in large font followed by the job description
9. Verify all requirements are listed with correct checkbox states based on user data
10. Confirm styling matches other pages in the Applications section
11. Verify the page renders correctly in dark mode using the reference document

Screenshots or videos of changes:

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud