[CHA-1700] Add Future Channel Bans support

[totalimmersion]

Summary

Add support for the Future Channel Bans feature.

New Parameters

• BanFromFutureChannels field in BanOptions struct
• RemoveFutureChannelsBan field in UnbanOptions struct

Usage

// Ban user from current channel and all future channels created by banner
channel.BanUser(ctx, "user-id", &stream.BanOptions{
    BanFromFutureChannels: true,
    Reason: "spam",
})

// Remove future channel ban (does NOT remove existing channel bans)
client.UnbanUser(ctx, "user-id", &stream.UnbanOptions{
    ChannelCID: "messaging:channel-id",
    CreatedBy: "banner-user-id",
    RemoveFutureChannelsBan: true,
})

// Query future channel bans
response, _ := client.QueryFutureChannelBans(ctx, &stream.QueryFutureChannelBansRequest{
    FilterConditions: map[string]interface{}{
        "created_by_id": "banner-user-id",
    },
})

Related PRs

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

Linear

• CHA-1700

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