fix: load plugin strings on guest pages, plugin wording and drop unused keys

src/ui/tests/plugin-host/loader.test.tsx

@@ -24,6 +24,7 @@ import {
   visibleRailItems,
 } from "@/sidebar/rail-items";
 import { getTabType, resetTabTypes } from "@/shell/tab-registry";
+import i18n from "@/i18n/i18n";
 
 function summary(
   id: string,
@@ -263,6 +264,21 @@ describe("plugin loader", () => {
     expect(isPluginFrontendActive("alpha")).toBe(true);
   });
 
+  it("loads plugin strings on guest pages", async () => {
+    modules.guest = railPlugin("guest");
+    plugins = [summary("guest", { locales: ["en"] })];
+    configurePluginLoader({
+      fetchPlugins: async () => plugins,
+      importFrontend: async (entry) => modules[entry.id],
+      loadLocale: async () => ({ hello: "Hello guest" }),
+      injectCss: () => null,
+    });
+
+    await startPluginRuntime({ guest: true });
+    await i18n.loadNamespaces("guest");
+    expect(i18n.t("hello", { ns: "guest" })).toBe("Hello guest");
+  });
+
   it("settles even when the plugin list cannot be fetched", async () => {
     vi.spyOn(console, "error").mockImplementation(() => {});
     configurePluginLoader({