feat: add wagon usage computation and maintenance logging features

- Implemented  utility to calculate wagon usage metrics for train schedules.
- Created  for sending wagons to maintenance with optional notes.
- Added unit tests for train builder maintenance functionalities, including formatting train run labels and building maintenance notes.
- Developed  component for merging train schedules with detailed previews and reasons for merging.
- Introduced  component for selecting wagons with search functionality and selection limits.
- Created  for displaying and filtering audit logs, including detailed views of individual log entries.
- Added  for handling API interactions related to audit logs, including fetching logs and entity types.

apps/edr-freight-web/backoffice/src/constants/URLS.ts

@@ -57,6 +57,10 @@ export const URL_CONSTANTS = {
     BASE: "/exchange-settings",
   },
 
+  AUDIT_LOGS: {
+    BASE: "/audit",
+  },
+
   DROPDOWN_SETTINGS: {
     BASE: "/dropdown-settings",
     BY_ID: (id: string) => `/api/dropdown-settings/${id}`,
@@ -355,6 +359,9 @@ export const URL_CONSTANTS = {
       `/train-scheduling/schedules/${id}/window-rule`,
     SCHEDULE_DATE: (id: string) =>
       `/train-scheduling/schedules/${id}/schedule-date`,
+    MERGE_PREVIEW: (id: string, targetTrainId: string) =>
+      `/train-scheduling/schedules/${id}/merge-preview/${targetTrainId}`,
+    MERGE_TRAIN: (id: string) => `/train-scheduling/schedules/${id}/merge`,
     CONTRACT_BOOKING_WINDOWS: (contractId: string) =>
       `/train-scheduling/contracts/${contractId}/booking-windows`,
     MARK_BOOKING_PAID: (bookingId: string) =>