Add Robot Framework integration test verifying that load_from_entry_points
does not call ep.load() for entry points with disallowed module prefixes
(security regression test for issue #7476).
Also add HAL 9000 to CONTRIBUTORS.md per CONTRIBUTING.md process rules.
ISSUES CLOSED: #7476
Parse entry point targets before import so allowlist enforcement happens prior to execution and add a Behave regression scenario covering the disallowed-prefix path.
ISSUES CLOSED: #7476