fix: fix goroutine leak

[cyb0225]

resolve #69
I have fix the goroutine leak bug in getting user list funciton List

And I have also changed some irrelevant files.
This is automatically modified by go format when I use command "make", and I think it is necessary.
So I push it.

I haven't solve the problem of use goroutine without a recover, and I'm waiting for your approval. If possible, I will introduce the go-zero part of the code design into the warehouse, and refactor most of the goroutine panic problems.

[luyees]

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