SignalR2Kusto

### Is your feature request related to a problem? Please describe.
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- I am trying to log messages for analytics to **Kusto** (Azure Data Explorer/Fabric KQL Database) but there's no native connector.

### Describe the solution you'd like
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- Ideally a low-code way for WebPubService to register a client app, auth and stream messages to a destination.

- Alternatively, I've created an azure function webjob that leverages SignalR Client SDK and Kusto bindings to run continuously on a timer. Pls see work-in-progress sample: https://github.com/hfleitas/signalrtokusto

### Additional context
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- Consider the following architecture but my Data Store is **Kusto** for analytics instead of Azure Tables.

Start by reviewing the linked signalrtokusto work-in-progress sample and the chatr architecture diagram referenced in the issue. Compare those approaches with Azure Web PubSub and Kusto capabilities; done would require an agreed native integration scope, authentication and message-streaming behavior, and acceptance criteria.

Written by the indexing model from the issue text.