commander: add valid_registrations_mask to ArmingCheckRequest.msg

This allows external modes to individually check if they are flagged as
invalid/unresponsive.
Previously this was done only based on whether or not ArmingCheckRequest
was received, which does not work when multiple modes are running.

msg/translation_node/translations/all_translations.h

@@ -8,6 +8,7 @@
 
 #include "translation_airspeed_validated_v1.h"
 #include "translation_arming_check_reply_v1.h"
+#include "translation_arming_check_request_v1.h"
 #include "translation_battery_status_v1.h"
 #include "translation_event_v1.h"
 #include "translation_home_position_v1.h"

msg/translation_node/translations/translation_arming_check_request_v1.h

@@ -0,0 +1,36 @@
+/****************************************************************************
+ * Copyright (c) 2025 PX4 Development Team.
+ * SPDX-License-Identifier: BSD-3-Clause
+ ****************************************************************************/
+#pragma once
+
+// Translate ArmingCheckRequest v0 <--> v1
+#include <px4_msgs_old/msg/arming_check_request_v0.hpp>
+#include <px4_msgs/msg/arming_check_request.hpp>
+
+class ArmingCheckRequestV1Translation {
+public:
+    using MessageOlder = px4_msgs_old::msg::ArmingCheckRequestV0;
+    static_assert(MessageOlder::MESSAGE_VERSION == 0);
+
+    using MessageNewer = px4_msgs::msg::ArmingCheckRequest;
+    static_assert(MessageNewer::MESSAGE_VERSION == 1);
+
+    static constexpr const char* kTopic = "/fmu/out/arming_check_request";
+
+    static void fromOlder(const MessageOlder &msg_older, MessageNewer &msg_newer) {
+	    msg_newer.timestamp = msg_older.timestamp;
+
+	    msg_newer.request_id = msg_older.request_id;
+
+	    msg_newer.valid_registrations_mask = 0xffffffff;
+    }
+
+    static void toOlder(const MessageNewer &msg_newer, MessageOlder &msg_older) {
+	    msg_older.timestamp = msg_newer.timestamp;
+
+	    msg_older.request_id = msg_newer.request_id;
+    }
+};
+
+REGISTER_TOPIC_TRANSLATION_DIRECT(ArmingCheckRequestV1Translation);