consumer will start failed when the subscribed topic not created

I hope the consumer client will hold on and start consuming when the topic created.

please add todo list!

Start by tracing the consumer startup and subscribed-topic handling in the Go client; the issue does not name a file, entry point, or test. Done means a consumer does not fail permanently when its subscribed topic is absent and begins consuming after that topic is created, with tests covering the behavior.

Written by the indexing model from the issue text.