Summarize pull requests and suggest review comments

What was done

Pull request summarization gives you a clear overview of what changed in a code update. It includes a high-level summary, a list of files with the largest additions or deletions, and draft feedback on potential issues. That can significantly speed up code reviews. OpenClaw reads the diff, flags risky patterns, and suggests questions you might want to ask the author. You can use this to quickly triage pull requests and decide which need a deeper review and which are likely safe to approve.

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