test(api-resume-upload): create integration tests for resume upload route

[ARPANPATRA111]

Description

Fixes #2355

Enhances integration test coverage for the POST /api/student/resume/upload route.

Changes

• Added makeEmptyUploadRequest() helper for testing missing file scenario
• Added afterEach to restore original FormData

Tests (5 total — 3 existing + 2 new)

1. ✅ Returns 400 for disallowed mime type (existing)
2. ✅ Returns 400 when content does not match declared PDF type (existing)
3. ✅ Accepts valid PDF file (existing)
4. NEW — Returns 400 when no resume file is provided in the form data
5. NEW — Returns 400 for a file exceeding the 5MB size limit

Pillar

• 🎨 Pillar 1 — New Theme Design
• 📐 Pillar 2 — Geometric SVG Improvement
• 🕐 Pillar 3 — Timezone Logic Optimization
• 🛠️ Other (Bug fix, refactoring, docs)

Checklist before requesting a review:

• I have read the CONTRIBUTING.md file.
• I have tested these changes locally.
• I have run npm run format and npm run lint locally and resolved all errors (CI will fail otherwise).
• My commits follow the Conventional Commits format.
• I have started the repo.
• I have made sure that i have only one commit to merge in this PR.

[github-actions]

📦 Next.js Bundle Size Report (Gzipped Sizes)

✨ No significant bundle size changes detected.

📊 Summary of Totals

Category	PR Size	Base Size	Difference
Total JS	3628.47 KB	3628.47 KB	0 B
Total CSS	284.92 KB	284.92 KB	0 B

[ARPANPATRA111]

@Aamod007 @souravjhahind @JhaSourav07 review and merge

[Aamod007]

Difficulty: intermediate – Adds integration tests to upload.test.ts (42 additions) for resume upload API route.

Quality: clean – Proper API testing.

Type: testing – Integration coverage.

Good API tests!

[github-actions]

🎉 Congratulations @ARPANPATRA111! Your PR has been successfully merged. 🚀

Thank you for contributing to CommitPulse. Your work helps us build a better tool for the community.

⚠️ Important for GSSoC Contributors:
You are strictly advised to join our Discord Server as it is mandatory for all GSSoC participants. All important announcements, point claims, and community discussions happen there.

Keep building! 💻✨