docs: add automated upstream sync workflow #27

Bugbot Review

Bugbot Analysis Progress (7m 46s elapsed)

✅ Gathered PR context (2s)
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Final Result: Bugbot completed review and found 2 potential issues.

Request ID: serverGenReqId_a1ea08c0-8a9c-4809-abe1-1ba11f086963

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

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