enhance booking windows section with pagination and improved UI

apps/edr-freight-api/src/modules/train-scheduling/train-scheduling.controller.ts

@@ -83,6 +83,16 @@ export class TrainSchedulingController {
     return this.trainSchedulingService.getBookingWindowsForContract(contractId);
   }
 
+  @Get("booking-windows")
+  @TrainSchedulingView()
+  @ApiOperation({
+    summary:
+      "All announced booking windows across lanes (import cycle + export FCFS), for staff dashboards",
+  })
+  listBookingWindows() {
+    return this.trainSchedulingService.listAllBookingWindows();
+  }
+
   @Get("global-rules")
   @TrainSchedulingView()
   @ApiOperation({ summary: "Get global train scheduling rules (singleton)" })