Elixir Clan posts the clan's activity to Discord

A clan's leaders can now post its activity to a Discord channel of its own, from Discord, a page of its own in Elixir Clan's Social section. Connect a webhook (not the one Actions go to) and the clan's timeline is posted there as it happens, as members read it: who joins and departs and role changes, members' milestones, and the Clan Wars week, each a line with a link back to Elixir that draws no preview. The clan's policy sets which are on: war posts only for a clan that takes part, and nothing without a policy. A leader can switch each one. A departure says the member departed, and when a leader says it was a kick or a leave, that message is edited to say so. With the clan's own model key, a leader can have each line rewritten in a voice the leaders describe; those lines are posted unread, so one that changes a name, adds a number or runs long keeps Elixir's own words, at most 50 a day and within the clan's monthly cap. Nothing earlier than the connection is posted and nothing pings anyone. A leader's word in Elixir Clan now also wakes timeline cross-posts at once. MCP 11.7.2 and JSON API 3.1.0 unchanged.