chore: Add PR validation workflow #20019

Bugbot Review

Bugbot Analysis Progress (5m 13s elapsed)

✅ Gathered PR context (2s)
✅ Completed bug detection (5m 7s)
✅ Posted analysis results (4s)

Final Result: Bugbot completed review and found 2 potential issues.

Request ID: serverGenReqId_fb344a9e-7c76-4d4f-a0be-cef877463476

Cursor Bugbot has reviewed your changes and found 2 potential issues.

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