onChannelChatPreferencesSet
open suspend override fun onChannelChatPreferencesSet(cid: String, preferences: ChatPreferences, result: Result<PushPreference>)
Called when per-category chat preferences are set for a given channel.
Parameters
cid
The full channel ID (e.g., "messaging:123").
preferences
The ChatPreferences applied to the channel.
result
The result of the update operation, containing the updated PushPreference on success or an error on failure.