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/services/api.ts

@@ -193,6 +193,7 @@ import {
   type ScheduleConsist,
   type TrainComposition,
   type UpdateTrainDetailsPayload,
+  type UsedTrainNumbers,
 } from "./trainBuilder.service";
 import { trainSchedulingService } from "./trainScheduling.service";
 import { wagonTypesService, type WagonType } from "./wagon-types.service";
@@ -1825,6 +1826,14 @@ export const api = {
       ({ id }) => QUERY_KEYS.TRAIN_BUILDER.composition(id),
     ),
 
+    // Key derives to ["train-builder", "usedTrainNumbers"], so the shared
+    // TRAIN_BUILDER.ROOT invalidation refreshes it after every build/edit.
+    usedTrainNumbers: endpoint<void, UsedTrainNumbers>(
+      "train-builder",
+      "usedTrainNumbers",
+      () => trainBuilderService.usedTrainNumbers().then((r) => r.data),
+    ),
+
     build: endpoint<BuildTrainPayload, TrainComposition>(
       "train-builder",
       "build",
@@ -1902,6 +1911,22 @@ export const api = {
       () => TRAIN_BUILDER_INVALIDATIONS,
     ),
 
+    deactivate: endpoint<string, TrainComposition>(
+      "train-builder",
+      "deactivate",
+      (id) => trainBuilderService.deactivate(id).then((r) => r.data),
+      undefined,
+      () => TRAIN_BUILDER_INVALIDATIONS,
+    ),
+
+    activate: endpoint<string, TrainComposition>(
+      "train-builder",
+      "activate",
+      (id) => trainBuilderService.activate(id).then((r) => r.data),
+      undefined,
+      () => TRAIN_BUILDER_INVALIDATIONS,
+    ),
+
     disband: endpoint<string, void>(
       "train-builder",
       "disband",