feat(jwt): get/refresh JWT and register data channel with JWT

[Tianhui-Han]

This pull request addresses

refer story https://jira-eng-gpk2.cisco.com/jira/browse/SPARK-685070

by making the following changes

• Updated some APIs to add the dataChannelToken parameter
• Add methods to get/refresh the dataChannelToken and register the dataChannel
• Implemented a DataChannelAuthTokenInterceptor with delayed retries and a max retry limit

Change Type

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Tooling change
• Internal code refactor

The following scenarios were tested

< ENUMERATE TESTS PERFORMED, WHETHER MANUAL OR AUTOMATED >

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  • Defect fix
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[mickelr]

Suggestions:

1. We may need add a feature toggle
2. We may need save the new token for the next call

[mickelr]

I think the logic here should be like:

const refreshedToken = this.webex.internal.llm.getDatachannelToken(isPracticeSession);

const  finalToken = refreshedToken ?? (isPracticeSession ? practiceSessionDatachannelToken : datachannelToken);