Port Commit0 benchmark to Harbor

[neubig]

Context

benchmarks/commit0 does not appear to have a corresponding Harbor registry dataset/adapter yet. To fully rely on Harbor for benchmark execution, Commit0 needs a Harbor adapter with parity against the current OpenHands benchmark implementation.

Proposed scope

• Create a Harbor adapter/dataset for Commit0 tasks.
• Preserve task setup, image/build behavior, verifier semantics, and current default dataset/split assumptions.
• Validate Oracle/reference behavior first, then compare an OpenHands/OpenHands SDK agent run against the existing harness.
• Document parity results and known exclusions.

Acceptance criteria

• Commit0 tasks can be run with harbor run or an equivalent Harbor job config.
• Parity results are recorded against the existing benchmarks/commit0 workflow.
• The OpenHands wrapper can delegate Commit0 execution to Harbor.