Add train deactivation feature and import train number management

- Introduced DEACTIVATED status for trains, allowing staff to park trains indefinitely.
- Implemented methods to deactivate and reactivate trains in the TrainBuilderService.
- Added UI components for train deactivation and reactivation in TrainBuilderDetailPage.
- Created a dropdown setting for admin-managed import train numbers, with corresponding migrations.
- Updated yard code length to accommodate soft-delete suffix.
- Enhanced train status handling to include DEACTIVATED state.

apps/edr-freight-web/backoffice/src/pages/trainBuilder/TrainBuilderDetailPage.tsx

@@ -18,6 +18,8 @@ import {
   CalendarClock,
   MapPin,
   MoreHorizontal,
+  Power,
+  PowerOff,
   Replace,
   Ruler,
   Trash2,
@@ -70,6 +72,7 @@ export default function TrainBuilderDetailPage() {
   const [locoModalOpen, setLocoModalOpen] = useState(false);
   const [yardModalOpen, setYardModalOpen] = useState(false);
   const [disbandOpen, setDisbandOpen] = useState(false);
+  const [deactivateOpen, setDeactivateOpen] = useState(false);
 
   const compositionQuery = useQuery(
     api.trainBuilder.composition.queryOptions({ input: { id }, enabled: Boolean(id) }),
@@ -81,6 +84,8 @@ export default function TrainBuilderDetailPage() {
   );
   const reorderWagons = useMutation(api.trainBuilder.reorderWagons.mutationOptions());
   const disband = useMutation(api.trainBuilder.disband.mutationOptions());
+  const deactivate = useMutation(api.trainBuilder.deactivate.mutationOptions());
+  const activate = useMutation(api.trainBuilder.activate.mutationOptions());
 
   const composition = compositionQuery.data;
   const busy =
@@ -172,6 +177,27 @@ export default function TrainBuilderDetailPage() {
               >
                 Change yard
               </Menu.Item>
+              {composition.status === "DEACTIVATED" ? (
+                <Menu.Item
+                  leftSection={<Power size={15} />}
+                  onClick={() =>
+                    void withToast(async () => {
+                      await activate.mutateAsync(composition.id);
+                      toast({ title: `Train ${composition.code} reactivated` });
+                    }, "Could not reactivate train")
+                  }
+                >
+                  Reactivate train
+                </Menu.Item>
+              ) : (
+                <Menu.Item
+                  leftSection={<PowerOff size={15} />}
+                  disabled={composition.activeSchedules.length > 0}
+                  onClick={() => setDeactivateOpen(true)}
+                >
+                  Deactivate train
+                </Menu.Item>
+              )}
               <Menu.Item
                 color="red"
                 leftSection={<Trash2 size={15} />}
@@ -356,6 +382,39 @@ export default function TrainBuilderDetailPage() {
         onClose={() => setYardModalOpen(false)}
       />
 
+      <Modal
+        opened={deactivateOpen}
+        onClose={() => setDeactivateOpen(false)}
+        title={<Text fw={600}>Deactivate train {composition.code}?</Text>}
+        radius="lg"
+        centered
+      >
+        <Stack gap="md">
+          <Text size="sm" c="dimmed">
+            The train is parked and cannot be picked for new schedules until it is
+            reactivated. Its locomotives and wagons stay coupled.
+          </Text>
+          <Group justify="flex-end">
+            <Button variant="default" onClick={() => setDeactivateOpen(false)}>
+              Keep active
+            </Button>
+            <Button
+              color="gray"
+              loading={deactivate.isPending}
+              onClick={() =>
+                void withToast(async () => {
+                  await deactivate.mutateAsync(composition.id);
+                  toast({ title: `Train ${composition.code} deactivated` });
+                  setDeactivateOpen(false);
+                }, "Could not deactivate train")
+              }
+            >
+              Deactivate
+            </Button>
+          </Group>
+        </Stack>
+      </Modal>
+
       <Modal
         opened={disbandOpen}
         onClose={() => setDisbandOpen(false)}

apps/edr-freight-web/backoffice/src/pages/trainBuilder/TrainBuilderListPage.tsx

@@ -315,6 +315,7 @@ export default function TrainBuilderListPage() {
                   { value: "IN_SERVICE", label: "In service" },
                   { value: "UNDER_MAINTENANCE", label: "Under maintenance" },
                   { value: "OUT_OF_SERVICE", label: "Out of service" },
+                  { value: "DEACTIVATED", label: "Deactivated" },
                 ]}
                 w={180}
                 styles={{ input: { borderColor: "var(--mantine-color-gray-3)" } }}