[Feat]: Better scoped `DistributedCacheTaskStore`

[ionmincu]

Is your feature request related to a problem? Please describe.

I would like some way to make DistributedCacheTaskStore scoped to an organization or a user.

We are building an application that will host multiple agents for multiple organizations / users.

I would like some way of scoping some tasks to an organization / user. A simple way of doing this is make this service Scoped and configure it something like BuildTaskCacheKey(string taskId) => $"{httpContext. GetOrganization()}::task:{taskId}";.

Describe the solution you'd like

Allow some way to overwrite

    static string BuildTaskCacheKey(string taskId) => $"task:{taskId}";

    static string BuildPushNotificationsCacheKey(string taskId) => $"task-push-notification:{taskId}";

Describe alternatives you've considered

No response

Additional context

No response

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