ITEP-87135 API Test Rework & Reporting adjustments - outdated

[dpitulax]

📝 Description

Our current API tests print their results differently from the UI test suite.
UI tests always include a standardized result footer in the test logs, formatted as "NEX-Txxxxx: PASS/FAILED".
To improve consistency and make results easier to scan in logs and reports, we want API tests to produce the same footer format for each test ID.

What Was Changed

• Added standardized footer reporting (NEX‑Txxxxx: PASS/FAIL) to API tests.
• Replaced redundant class‑based API tests with plain pytest function tests.
• Improved code readability and consistency across test files.

JIRA: ITEP-87135

✨ Type of Change

Select the type of change your PR introduces:

• 🐞 Bug fix – Non-breaking change which fixes an issue
• 🚀 New feature – Non-breaking change which adds functionality
• 🔨 Refactor – Non-breaking change which refactors the code base
• 💥 Breaking change – Changes that break existing functionality
• 📚 Documentation update
• 🔒 Security update
• 🧪 Tests
• 🚂 CI

🧪 Testing Scenarios

Describe how the changes were tested and how reviewers can test them too:

• ✅ Tested manually
• 🤖 Ran automated end-to-end tests

✅ Checklist

Before submitting the PR, ensure the following:

• 🔍 PR title is clear and descriptive
• 📝 For internal contributors: If applicable, include the JIRA ticket number (e.g., ITEP-123456) in the PR title. Do not include full URLs
• 💬 I have commented my code, especially in hard-to-understand areas
• 📄 I have made corresponding changes to the documentation
• ✅ I have added tests that prove my fix is effective or my feature works