Polish populated workbench states

backend/tests/test_sprint53_selection_ergonomics.py

@@ -18,6 +18,15 @@ def test_dataset_panel_exposes_map_and_export_quick_actions() -> None:
     assert "disabled={!(dataset.dataset_type === 'vector' || dataset.dataset_type === 'geojson')}" in panel
 
 
+def test_data_workspace_keeps_catalog_wide_enough_for_populated_state() -> None:
+    css = (ROOT / "frontend" / "src" / "styles" / "app.css").read_text(encoding="utf-8")
+
+    assert ".workspace-grid-data {\n  grid-template-columns: repeat(2, minmax(0, 1fr));\n}" in css
+    assert ".workspace-grid-data > section:nth-child(3)" in css
+    assert "grid-column: 1 / -1" in css
+    assert ".dataset-card .button-row" in css
+
+
 def test_app_wires_dataset_quick_actions_to_existing_workspaces() -> None:
     app = (ROOT / "frontend" / "src" / "App.tsx").read_text(encoding="utf-8")