[OCR compatibility] Qualify v1.12.0

[github-actions]

OCR v1.12.0 compatibility qualification failed

• machine result: failed
• closed phase: contracts
• closed reason: contract-probe-failed
• current tested baseline: v1.11.9
• compare: alibaba/open-code-review@v1.11.9...v1.12.0
• release: https://github.com/alibaba/open-code-review/releases/tag/v1.12.0

The candidate was not classified as compatible. Raw process diagnostics are not copied into this issue.

Workflow evidence

• run: https://github.com/xeonvs/open-code-review-toolkit/actions/runs/35441414671

Resume checklist

• Inspect the bounded workflow artifact and private job log.
• Correct or explicitly classify the failed compatibility boundary.
• Rerun the same candidate; update this issue instead of creating a duplicate.
• Promote only after compatible evidence and protected review.

[github-actions]

Stable v0.11.0 delivery is verified by immutable release asset release-receipt.json in v0.11.0 (SHA-256 d8295d4e2a51f1d486229cf614fbb6afea92e80e331bafe8ebf356e469129c4a).