fix: add group mute all system notice

server/im_http.go

@@ -5986,6 +5986,21 @@ func serveIMGroupGovernance(wrt http.ResponseWriter, req *http.Request, topic st
 				nil,
 				map[string]any{"member_private_chat": *body.MemberPrivateChat, "version": settings.Version})
 		}
+		if body.MuteAll != nil && imReliableHTTPEventsEnabled(req) {
+			template := "group_mute_all_disabled"
+			text := "全体禁言已关闭，普通成员将能发送任何消息。"
+			if *body.MuteAll {
+				template = "group_mute_all_enabled"
+				text = "全体禁言已开启，普通成员将不能发送任何消息。"
+			}
+			publishIMConversationSystemNotice(principal.TenantID, topic,
+				"system_notice", template, text,
+				[]imSystemMessageActor{
+					{UserID: principal.Uid.UserId(), Click: map[string]any{"type": "user_profile", "target_id": principal.Uid.UserId()}},
+				},
+				nil,
+				map[string]any{"mute_all": *body.MuteAll, "version": settings.Version})
+		}
 		dispatchIMGroupEvents(principal.TenantID)
 		writeIMSuccess(wrt, req, groupGovernancePayloadFromSettings(settings, selfSub))
 	default: