fix(cryptoops): add nil check in SecureConnection.Read to prevent panic Prevents a potential nil pointer dereference when sc.readBuffer is uninitialized, ensuring safe access to its .B field in the Read method.

fix(cryptoops): add nil check in SecureConnection.Read to prevent panic Prevents a potential nil pointer dereference when sc.readBuffer is uninitialized, ensuring safe access to its .B field in the Read method. #228