fix(msgpack): Limit deserialization depth#1727
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Reject msgpack payloads that exceed the maximum nesting depth so malformed input cannot grow the C call stack without bound. Add a focused regression test for the accepted boundary and the first rejected depth. Co-Authored-By: OpenAI Codex <noreply@openai.com>
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Reject msgpack payloads that exceed the maximum nesting depth so malformed input cannot grow the C call stack without bound. Add a focused regression test for the accepted boundary and the first rejected depth.