test(09-04): add failing tests for ordered list schemas

- Columns, actions, default sort, and page sizes must compile to typed JSON
- Empty and single declarations stay arrays and keep source order
- Unsupported keys, actions, defaults, and path escape fail activation

cabana/testdata/list/all_columns.yaml

@@ -0,0 +1,20 @@
+columns:
+    name:
+        label: demo.lang.name
+        type: text
+        searchable: true
+        sortable: true
+    created_at:
+        label: demo.lang.created
+        type: datetime
+        sortable: true
+    active:
+        label: demo.lang.active
+        type: switch
+        sortable: false
+    genre:
+        label: demo.lang.genre
+        relation: genre
+        select: name
+        searchable: true
+        sortable: false