Transform all possible identity fields to formatted strings in wit_get_work_items_batch_by_ids

[fbeltrao]

The function get_work_items_batch_by_ids transforms the field System.AssignedTo to contain a simple name <email>. With pull request #385 , users can choose returned fields. It would be great to transform all possible identity fields:

• System.AssignedTo
• System.CreatedBy
• System.ChangedBy
• System.AuthorizedAs
• Microsoft.VSTS.Common.ActivatedBy
• Microsoft.VSTS.Common.ResolvedBy
• Microsoft.VSTS.Common.ClosedBy

The proposed implementation leverages a list of known identity fields. An alternative would be to detect if the field looks like an identity. The risk is that it might find false positives.

GitHub issue number

#409

Associated Risks

Replace by possible risks this pull request can bring you might have thought of

✅ PR Checklist

• I have read the contribution guidelines
• I have read the code of conduct guidelines
• Title of the pull request is clear and informative.
• 👌 Code hygiene
• 🔭 Telemetry added, updated, or N/A
• 📄 Documentation added, updated, or N/A
• 🛡️ Automated tests added, or N/A

🧪 How did you test it?

• Added new unit test

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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Flag	Coverage Δ
unittests	91.55% <100.00%> (?)

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[danhellem]

per https://github.com/microsoft/azure-devops-mcp/blob/main/CONTRIBUTING.md please wait for Issue to be reviewed and approved before creating a PR