feat: Add tests for case insensitivity and whitespace handling in recommendations(#473)

[vansh-09]

Summary [required]

Adds regression tests to ensure skill matching is case-insensitive and that leading/trailing
whitespace is ignored.
No changes to the recommendation algorithm were required — the fix is test coverage and
documentation.

Related Issue [required]

Closes #473

Type of Change [required]

• Bug fix — resolves a broken behaviour
• Feature — adds new functionality
• Data — adds new projects to data/projects.json
• Documentation — updates docs, README, or code comments only
• Style — CSS or visual changes only, no logic change
• Refactor — restructures code without changing behaviour
• Test — adds or updates tests

What Was Changed [required]

File	Change made
tests/test_basic.py	Added regression tests for case-insensitive and whitespace-stripping skill matching

How to Test This PR [required]

1. Clone this branch: git checkout your-branch-name
2. Install dependencies: pip install -r requirements.txt
3. Run the app: python app.py
4. Open http://127.0.0.1:5000 and...
5. Run the tests: python tests/test_basic.py or python -m pytest -q

Expected test output: all tests pass with zero failures.

Test Results [required]

/DevPath/.venv/bin/python -m pytest -q
................................                                         [100%]
32 passed in 0.28s

Self-Review Checklist [required]

• I have read CONTRIBUTING.md and followed all guidelines
• My branch name follows the convention: feat/, fix/, docs/, data/, style/, test/
• I have run python tests/test_basic.py (or pytest) and all tests pass
• I have run flake8 . locally and there are no errors
• I have not introduced any print() or console.log() debug statements
• Every new function I wrote has a docstring
• I have not modified files outside the scope of the linked issue
• If I changed the UI, I tested it at 375px (mobile) and 1280px (desktop)
• If I added a project to the dataset, it has all required JSON fields

Notes for Reviewer

None

[vercel]

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