Refactored AcBinaryHubProtocol and AyCodeBinaryHubProtocol to remove the VarUInt length prefix for raw byte[] arguments. Now, the protocol writes a tag (0x44) followed directly by the raw bytes, with argLength implying the payload size. Updated read logic to match: on detecting the tag, the code skips it and returns the remaining bytes as the payload. Updated documentation to clarify the new fast-path, protocol roles, and AcBinary detection. Set BufferWriterChunkSize to 4096 for SignalR in the base protocol for better alignment with Kestrel. Marked the related issue as resolved.