[feat] trees & [fix] deploy & [fix] some bugs

backend/project/api/tree/views.py

@@ -0,0 +1,9 @@
+from rest_framework.viewsets import ModelViewSet
+
+from api.tree.models import Tree
+from api.tree.serializers import TreeSerializer
+
+
+class TreeViewSet(ModelViewSet):
+    serializer_class = TreeSerializer
+    queryset = Tree.objects.all()