[Task][admin] <API document enhancement: display customized headers and adds a control switch.>

[lianjunwei]

Description

Parse the swagger document and display the customized header.

Task List

1.Parse the swagger document and display the customized header.

The next two items are completed by another pr. 2.Loading API documents adds a control switch, allowing users to decide whether to turn it on or off. 3.The gateway address of the API document supports configuration in the dictionary.

The next one, another PR will be implemented.. see #3651 4.API document storage strategy adjustment: from local cache to database persistence.>

[lianjunwei]

I will complete this function.