Change ListEvaluationHistory to use default project ID

[dmjb]

Previously, this code expected the project ID to be explicitly set in the request context, which typically only happens when the client tries to override the project ID. This changes the project ID lookup to use the same logic used in the repo handler.

Change validated locally.

Summary

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Fixes #(related issue)

Change Type

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• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
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• Refactoring or test improvements (no bug fixes or new functionality)

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Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[coveralls]

coverage: 53.047%. remained the same
when pulling 6678c45 on project-default-eval-history
into 546457c on main.