Include active room numbers in booking list

src/main/kotlin/com/android/trisolarisserver/repo/RoomStayRepo.kt

@@ -89,4 +89,20 @@ interface RoomStayRepo : JpaRepository<RoomStay, UUID> {
         where rs.room.id = :roomId
     """)
     fun existsByRoomId(@Param("roomId") roomId: UUID): Boolean
+
+    @Query("""
+        select rs.booking.id as bookingId, r.roomNumber as roomNumber
+        from RoomStay rs
+        join rs.room r
+        where rs.booking.id in :bookingIds
+          and rs.toAt is null
+    """)
+    fun findActiveRoomNumbersByBookingIds(
+        @Param("bookingIds") bookingIds: List<UUID>
+    ): List<BookingRoomNumberRow>
+}
+
+interface BookingRoomNumberRow {
+    val bookingId: UUID
+    val roomNumber: Int
 }