feat(anthropic): Emit AI Client Spans for synchronous `messages.stream()` #5565

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Final Result: Bugbot completed review and found 1 potential issue.

Request ID: serverGenReqId_6975a3c3-1e68-4c78-83e9-f93a7a27cf6b

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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