[CHA-1703] Add Future Channel Bans support

[totalimmersion]

Summary

Add support for the Future Channel Bans feature.

New Parameters

• banFromFutureChannels parameter in ban request
• removeFutureChannelsBan parameter in unban request

Usage

// Ban user from current channel and all future channels created by banner
channel.banUser("user-id")
    .banFromFutureChannels(true)
    .reason("spam")
    .request();

// Remove future channel ban (does NOT remove existing channel bans)
client.unbanUser("user-id")
    .channelCid("messaging:channel-id")
    .createdBy("banner-user-id")
    .removeFutureChannelsBan(true)
    .request();

// Query future channel bans
QueryFutureChannelBansResponse response = client.queryFutureChannelBans()
    .filterCondition("created_by_id", "banner-user-id")
    .request();

Related PRs

• Backend: https://github.com/GetStream/chat/pull/11390

Linear

• CHA-1703

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