fix

apps/edr-freight-api/src/modules/last-mile/last-mile.service.ts

@@ -58,6 +58,23 @@ export class LastMileService {
     }
   }
 
+  /** Human booking reference for a last-mile record, for the history timeline.
+   *  Uses the already-loaded relation when present, else looks it up. */
+  private async resolveBookingRef(
+    record: LastMile,
+  ): Promise<string | null> {
+    const loaded = (record as LastMile & { booking?: { reference?: string } })
+      .booking?.reference;
+    if (loaded) return loaded;
+    if (!record.bookingId) return null;
+    try {
+      const booking = await this.bookingsRepository.findById(record.bookingId);
+      return (booking as { reference?: string } | null)?.reference ?? null;
+    } catch {
+      return null;
+    }
+  }
+
   async acceptBooking(bookingReference: string): Promise<LastMile | null> {
     const booking = await this.bookingsRepository.findByReference(bookingReference);
 
@@ -165,7 +182,7 @@ export class LastMileService {
         lastMileId: record.id,
         driverId: await this.resolveDriverId(dto.vehicleId),
         label: record.status,
-        metadata: { mile: 'LAST' },
+        metadata: { mile: 'LAST', bookingRef: await this.resolveBookingRef(record) },
       });
     }
 
@@ -209,6 +226,7 @@ export class LastMileService {
     }
 
     // Audit the mile↔vehicle (re)assignment on both vehicle and driver lines.
+    const bookingRef = await this.resolveBookingRef(existing);
     if (dto.vehicleId !== undefined && dto.vehicleId !== existing.vehicleId) {
       if (existing.vehicleId) {
         await this.history.record({
@@ -216,7 +234,7 @@ export class LastMileService {
           vehicleId: existing.vehicleId,
           lastMileId: id,
           driverId: await this.resolveDriverId(existing.vehicleId),
-          metadata: { mile: 'LAST' },
+          metadata: { mile: 'LAST', bookingRef },
         });
       }
       if (dto.vehicleId) {
@@ -226,7 +244,7 @@ export class LastMileService {
           lastMileId: id,
           driverId: await this.resolveDriverId(dto.vehicleId),
           label: updated.status,
-          metadata: { mile: 'LAST' },
+          metadata: { mile: 'LAST', bookingRef },
         });
       }
     }
@@ -240,7 +258,7 @@ export class LastMileService {
         driverId: await this.resolveDriverId(vehicleId),
         fromValue: existing.status,
         toValue: dto.status,
-        metadata: { mile: 'LAST' },
+        metadata: { mile: 'LAST', bookingRef },
       });
     }