Keep catalog copy on a selected method card, and only offer See all when the deck is longer than the compact seven.

tests/unit/CardStack.test.jsx

@@ -192,6 +192,55 @@ describe("CardStack Component", () => {
     ).not.toBeInTheDocument();
   });
 
+  test("selected compact card keeps catalog copy and hides the alternative", () => {
+    render(
+      <CardStack
+        cards={[
+          {
+            id: "1",
+            label: "Option A",
+            supportText: "Catalog copy",
+            compactSupportText: "Fits a worker co-op",
+            recommended: true,
+            alternative: { id: "2", label: "Option B" },
+          },
+        ]}
+        selectedIds={["1"]}
+        layout="singleStack"
+        alternativePrefix="Another way communities do this:"
+      />,
+    );
+
+    expect(
+      screen.getByRole("button", { name: "Option A: Catalog copy" }),
+    ).toBeInTheDocument();
+    expect(screen.queryByText(/Fits a worker co-op/)).not.toBeInTheDocument();
+    expect(
+      screen.queryByRole("button", { name: "Option B" }),
+    ).not.toBeInTheDocument();
+  });
+
+  test("unselected compact card shows the why line", () => {
+    render(
+      <CardStack
+        cards={[
+          {
+            id: "1",
+            label: "Option A",
+            supportText: "Catalog copy",
+            compactSupportText: "Fits a worker co-op",
+            recommended: true,
+          },
+        ]}
+        layout="singleStack"
+      />,
+    );
+
+    expect(
+      screen.getByRole("button", { name: "Option A: Fits a worker co-op" }),
+    ).toBeInTheDocument();
+  });
+
   test("compact alternative row opens the named card", () => {
     const onAlternativeSelect = vi.fn();
     render(