projects_list returns all fields when fields filter is provided

[alexdioso]

Summary

The projects_list tool currently returns all project item fields even when the fields parameter is supplied with a subset of field IDs.

Reproduction

1. Call projects_list with project_id set to a valid project and fields set to a subset of known field IDs.
2. Observe response items include field values beyond the requested IDs.

Expected

Only field values for the field IDs listed in fields should be returned.

Actual

All field values are returned.

Notes

Potential root cause is that field filtering is delegated entirely to upstream API behavior and no local projection is enforced before returning results.

Proposed test coverage

• Add a test in pkg/github/projects_test.go verifying outgoing fields query parameter is present and correctly encoded for list_project_items calls.

[alexdioso]

Sorry, this was created on the wrong repo.