fix: refresh live room availability during create flow

tests/BusProNet/Model/TravelTest.php

@@ -82,6 +82,39 @@ class TravelTest extends TestCase
         $this->assertCount(2, $result);
     }
 
+    public function testGetAvailableRoomsExcludesSoldOutRooms(): void
+    {
+        $travel = new Travel();
+
+        $availableRoom = new \App\BusProNet\Model\Room();
+        $availableRoom->id = 1;
+        $availableRoom->label = 'Doppelzimmer';
+        $availableRoom->available = 2;
+        $availableRoom->status = 'Frei';
+
+        $soldOutRoom = new \App\BusProNet\Model\Room();
+        $soldOutRoom->id = 2;
+        $soldOutRoom->label = 'Einzelzimmer';
+        $soldOutRoom->available = 0;
+        $soldOutRoom->status = 'Frei';
+
+        $requestRoom = new \App\BusProNet\Model\Room();
+        $requestRoom->id = 3;
+        $requestRoom->label = 'Familienzimmer';
+        $requestRoom->available = 1;
+        $requestRoom->status = 'Anfrage';
+
+        $travel->rooms = [$availableRoom, $soldOutRoom, $requestRoom];
+
+        $result = $travel->getAvailableRooms();
+
+        $this->assertSame([
+            1 => $availableRoom,
+            3 => $requestRoom,
+        ], $result);
+        $this->assertArrayNotHasKey(2, $result);
+    }
+
     /**
      * Test that services are sorted by subType.
      */