fix(scheduler): run bounded review repairs every hour

[seonghobae]

Outcome

Run the central review-feedback repair scheduler once per hour instead of once every two hours, while preserving its bounded and fail-closed operating contract.

• change the scheduled cadence from 23 */2 * * * to 23 * * * *;
• change the same-head redispatch default from 24 hours to 1 hour;
• retain max_dispatches = 1, head-scoped repair markers, target-repository concurrency, and canonical central workflow ownership;
• add a workflow-source regression contract for the hourly cron and one-hour retry default;
• record the operating change in CHANGELOG.md.

The merge scheduler already performs organization sweeps every 15 minutes; this PR only raises the slower code-repair loop to the requested hourly cadence. It does not duplicate scheduler logic into application repositories or alter review-agent credentials.

Merge only after exact-head quality/security checks and an independent review. Auto-merge may be enabled after the repository validates this head.

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 3781b785-d71c-4cd8-9736-a10dc7859666

📥 Commits

Reviewing files that changed from the base of the PR and between 6eb06cd and 16a9916.

📒 Files selected for processing (3)

• .github/workflows/pr-review-fix-scheduler.yml
• CHANGELOG.md
• tests/test_pr_review_fix_scheduler_workflow_contract.py

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[seonghobae]

@opencode-agent @cwl-noema-review Please independently review exact head 16a9916af8e5e11182c837a1c1b950300fead99b. Verify the hourly repair cadence, one-hour same-head retry, max_dispatches = 1, immutable central ownership, target-repository concurrency, least privilege, and regression contracts before approval.

[seonghobae]

@coderabbitai review

Please review the unchanged exact head 16a9916af8e5e11182c837a1c1b950300fead99b, focusing on the hourly cadence, one-hour same-head retry, bounded single-dispatch behavior, concurrency, least privilege, and regression contract.

[coderabbitai]

@seonghobae I will review exact head 16a9916af8e5e11182c837a1c1b950300fead99b.

I will verify the hourly cron, one-hour same-head retry, max_dispatches = 1, target-repository concurrency, least-privilege permissions, immutable central ownership, and regression contracts.

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[seonghobae]

Closing this narrower cadence-only PR as superseded by #782. PR #782 already carries the hourly review-repair cadence together with the required NVIDIA NIM credential separation, exact-head RCA/repair contract, bounded writer scope, fail-closed behavior, and repository-specific callers. Keeping both open would race on .github/workflows/pr-review-fix-scheduler.yml, duplicate checks, and obscure which implementation should become the protected central authority.