Update group booking and package

apps/edr-passenger-api/src/modules/seats/seats.controller.ts

@@ -191,10 +191,12 @@ This makes it clear which segment of the route each seat is held for, enabling s
   @ApiBearerAuth("IAM-auth")
   @ApiOperation({
     summary: "Auto-assign and hold N seats of a class — staff bulk/group booking only",
-    description: `Picks the requested number of available seats of the given class (preferring a contiguous row) and holds them in one step, so the caller never shows an assignment it could lose to a race before the passenger data is submitted.
+    description: `Picks the requested number of available seats of the given class (filling Lower berths first, then Middle, then Upper, ascending seat number within each tier) and holds them in one step, so the caller never shows an assignment it could lose to a race before the passenger data is submitted.
 
 No manual seat selection — this is for bulk/group booking flows where staff upload a passenger list rather than picking seats on a seat map. Returns the same hold shape as POST /seats/hold.
 
+For a round-trip group booking, call this twice — once per leg — passing \`journeyDirection: 'OUTBOUND'\`/\`'RETURN'\` so a same-schedule turnaround round trip isn't mistaken for a double-hold conflict.
+
 Throws 409 with no partial hold created if fewer than the requested seats are available in that class.`,
   })
   @ApiResponse({ status: 201, description: "Seats auto-assigned and held" })
@@ -207,6 +209,7 @@ Throws 409 with no partial hold created if fewer than the requested seats are av
       dto.destinationStationId,
       dto.seatClassName,
       passengerCount,
+      dto.journeyDirection,
     );
   }