fix: harden Mattermost plugin gating (#1428) (thanks @damoahdominic)

apps/macos/Sources/Clawdbot/ChannelsSettings+ChannelState.swift

@@ -40,17 +40,6 @@ extension ChannelsSettings {
         return .orange
     }
 
-    var mattermostTint: Color {
-        guard let status = self.channelStatus("mattermost", as: ChannelsStatusSnapshot.MattermostStatus.self)
-        else { return .secondary }
-        if !status.configured { return .secondary }
-        if status.lastError != nil { return .orange }
-        if status.probe?.ok == false { return .orange }
-        if status.connected == true { return .green }
-        if status.running { return .orange }
-        return .orange
-    }
-
     var signalTint: Color {
         guard let status = self.channelStatus("signal", as: ChannelsStatusSnapshot.SignalStatus.self)
         else { return .secondary }
@@ -96,15 +85,6 @@ extension ChannelsSettings {
         return "Configured"
     }
 
-    var mattermostSummary: String {
-        guard let status = self.channelStatus("mattermost", as: ChannelsStatusSnapshot.MattermostStatus.self)
-        else { return "Checking…" }
-        if !status.configured { return "Not configured" }
-        if status.connected == true { return "Connected" }
-        if status.running { return "Running" }
-        return "Configured"
-    }
-
     var signalSummary: String {
         guard let status = self.channelStatus("signal", as: ChannelsStatusSnapshot.SignalStatus.self)
         else { return "Checking…" }
@@ -213,38 +193,6 @@ extension ChannelsSettings {
         return lines.isEmpty ? nil : lines.joined(separator: " · ")
     }
 
-    var mattermostDetails: String? {
-        guard let status = self.channelStatus("mattermost", as: ChannelsStatusSnapshot.MattermostStatus.self)
-        else { return nil }
-        var lines: [String] = []
-        if let source = status.botTokenSource {
-            lines.append("Token source: \(source)")
-        }
-        if let baseUrl = status.baseUrl, !baseUrl.isEmpty {
-            lines.append("Base URL: \(baseUrl)")
-        }
-        if let probe = status.probe {
-            if probe.ok {
-                if let name = probe.bot?.username {
-                    lines.append("Bot: @\(name)")
-                }
-                if let elapsed = probe.elapsedMs {
-                    lines.append("Probe \(Int(elapsed))ms")
-                }
-            } else {
-                let code = probe.status.map { String($0) } ?? "unknown"
-                lines.append("Probe failed (\(code))")
-            }
-        }
-        if let last = self.date(fromMs: status.lastProbeAt ?? status.lastConnectedAt) {
-            lines.append("Last probe \(relativeAge(from: last))")
-        }
-        if let err = status.lastError, !err.isEmpty {
-            lines.append("Error: \(err)")
-        }
-        return lines.isEmpty ? nil : lines.joined(separator: " · ")
-    }
-
     var signalDetails: String? {
         guard let status = self.channelStatus("signal", as: ChannelsStatusSnapshot.SignalStatus.self)
         else { return nil }
@@ -296,7 +244,7 @@ extension ChannelsSettings {
     }
 
     var orderedChannels: [ChannelItem] {
-        let fallback = ["whatsapp", "telegram", "discord", "slack", "mattermost", "signal", "imessage"]
+        let fallback = ["whatsapp", "telegram", "discord", "slack", "signal", "imessage"]
         let order = self.store.snapshot?.channelOrder ?? fallback
         let channels = order.enumerated().map { index, id in
             ChannelItem(
@@ -359,8 +307,6 @@ extension ChannelsSettings {
             return self.telegramTint
         case "discord":
             return self.discordTint
-        case "mattermost":
-            return self.mattermostTint
         case "signal":
             return self.signalTint
         case "imessage":
@@ -380,8 +326,6 @@ extension ChannelsSettings {
             return self.telegramSummary
         case "discord":
             return self.discordSummary
-        case "mattermost":
-            return self.mattermostSummary
         case "signal":
             return self.signalSummary
         case "imessage":
@@ -401,8 +345,6 @@ extension ChannelsSettings {
             return self.telegramDetails
         case "discord":
             return self.discordDetails
-        case "mattermost":
-            return self.mattermostDetails
         case "signal":
             return self.signalDetails
         case "imessage":
@@ -435,10 +377,6 @@ extension ChannelsSettings {
             return self
                 .date(fromMs: self.channelStatus("discord", as: ChannelsStatusSnapshot.DiscordStatus.self)?
                     .lastProbeAt)
-        case "mattermost":
-            guard let status = self.channelStatus("mattermost", as: ChannelsStatusSnapshot.MattermostStatus.self)
-            else { return nil }
-            return self.date(fromMs: status.lastProbeAt ?? status.lastConnectedAt)
         case "signal":
             return self
                 .date(fromMs: self.channelStatus("signal", as: ChannelsStatusSnapshot.SignalStatus.self)?.lastProbeAt)
@@ -473,10 +411,6 @@ extension ChannelsSettings {
             guard let status = self.channelStatus("discord", as: ChannelsStatusSnapshot.DiscordStatus.self)
             else { return false }
             return status.lastError?.isEmpty == false || status.probe?.ok == false
-        case "mattermost":
-            guard let status = self.channelStatus("mattermost", as: ChannelsStatusSnapshot.MattermostStatus.self)
-            else { return false }
-            return status.lastError?.isEmpty == false || status.probe?.ok == false
         case "signal":
             guard let status = self.channelStatus("signal", as: ChannelsStatusSnapshot.SignalStatus.self)
             else { return false }