fix: default homepage Plugins to Featured (#3434)

Default the homepage Plugins catalog to Featured when switching from the Skills-only Trending tab, while preserving explicit valid plugin tabs and existing Skills behavior.\n\nCloses #3433

src/__tests__/home-listing-section.claw591.test.tsx

@@ -311,7 +311,9 @@ describe("HomeListingSection", () => {
     render(<HomeListingSection initialListing={initialTrending([], false, "unavailable")} />);
 
     fireEvent.click(screen.getByRole("button", { name: "Plugins" }));
-    expect(screen.getByRole("tab", { name: "New" }).getAttribute("aria-selected")).toBe("true");
+    expect(screen.getByRole("tab", { name: "Featured" }).getAttribute("aria-selected")).toBe(
+      "true",
+    );
 
     fireEvent.click(screen.getByRole("button", { name: "Skills" }));
     expect(screen.getByRole("tab", { name: "Featured" }).getAttribute("aria-selected")).toBe(
@@ -326,12 +328,14 @@ describe("HomeListingSection", () => {
     expect(screen.getByText(/eligible activity in the current 24-hour window/i)).toBeTruthy();
   });
 
-  it("shows Featured, Official, and New for plugins but never plugin Trending", async () => {
+  it("defaults Plugins to Featured, preserves explicit New, and returns to Skills Trending", async () => {
     render(<HomeListingSection initialListing={initialTrending([])} />);
 
     fireEvent.click(screen.getByRole("button", { name: "Plugins" }));
 
-    expect(screen.getByRole("tab", { name: "New" }).getAttribute("aria-selected")).toBe("true");
+    expect(screen.getByRole("tab", { name: "Featured" }).getAttribute("aria-selected")).toBe(
+      "true",
+    );
     expect(screen.getAllByRole("tab").map((tab) => tab.textContent)).toEqual([
       "Featured",
       "Official",
@@ -339,12 +343,25 @@ describe("HomeListingSection", () => {
     ]);
     expect(screen.queryByRole("tab", { name: "Trending" })).toBeNull();
     expect(screen.queryByRole("tab", { name: "Top" })).toBeNull();
+    await waitFor(() =>
+      expect(fetchPluginCatalogMock).toHaveBeenCalledWith(
+        expect.objectContaining({ featured: true }),
+      ),
+    );
+
+    fireEvent.click(screen.getByRole("tab", { name: "New" }));
     await waitFor(() =>
       expect(convexQueryMock).toHaveBeenCalledWith(
         "packages:listPublicNewPluginsPage",
         expect.any(Object),
       ),
     );
+    expect(screen.getByRole("tab", { name: "New" }).getAttribute("aria-selected")).toBe("true");
+
+    fireEvent.click(screen.getByRole("button", { name: "Skills" }));
+    expect(screen.getByRole("tab", { name: "Trending" }).getAttribute("aria-selected")).toBe(
+      "true",
+    );
   });
 
   it("uses the native New, Featured, and Official eligibility contracts", async () => {

src/components/HomeListingSection.tsx

@@ -25,7 +25,6 @@ import { fetchPluginCatalog, type PackageListItem } from "../lib/packageApi";
 import { buildPluginDetailHref } from "../lib/pluginRoutes";
 import { presentationTitle } from "../lib/presentationTitle";
 import { PUBLIC_CATALOG_NAME_PREVIEW_LENGTH, truncateText } from "../lib/truncateText";
-import { MarketplaceIcon } from "./MarketplaceIcon";
 import {
   BrowseControlsDivider,
   BrowseCategorySelect,
@@ -34,6 +33,7 @@ import {
   BrowseSearchTrigger,
   useBrowseSearchDisclosure,
 } from "./BrowseControls";
+import { MarketplaceIcon } from "./MarketplaceIcon";
 import { OfficialBadge } from "./OfficialBadge";
 import { BrowseResultsSkeleton } from "./skeletons/BrowseResultsSkeleton";
 import { Badge } from "./ui/badge";
@@ -567,7 +567,13 @@ export function HomeListingSection({ initialListing = null }: HomeListingSection
     setKind(nextKind);
     setCategorySlug(undefined);
     setTab(
-      nextKind === "skills" ? (canonicalTrendingUnavailable ? "featured" : "trending") : "new",
+      nextKind === "skills"
+        ? canonicalTrendingUnavailable
+          ? "featured"
+          : "trending"
+        : tab === "trending"
+          ? "featured"
+          : tab,
     );
   };