fix(i18n): shorten language switcher + localize scenario badges

src/app/[locale]/admin/agents/page.tsx

@@ -50,6 +50,7 @@ export default function AdminAgentsPage() {
   const [editingId, setEditingId] = useState<string | null>(null);
   const [draft, setDraft] = useState<string[]>([]);
   const t = useTranslations("Admin");
+  const tScenario = useTranslations("Scenarios");
 
   const load = useCallback(async () => {
     setLoading(true);
@@ -152,7 +153,7 @@ export default function AdminAgentsPage() {
                             className="inline-flex items-center gap-1 text-[10px] px-1.5 py-0.5 rounded-full bg-purple-50 text-purple-600"
                           >
                             <span>{sc.emoji}</span>
-                            {sc.nameZh}
+                            {tScenario(slug)}
                           </span>
                         ) : null;
                       })}

src/components/LocaleSwitcher.tsx

@@ -8,12 +8,17 @@ import { routing } from "@/i18n/routing";
 import { LOCALE_META } from "@/lib/locales";
 
 /**
- * Language selector. Switches the active locale while preserving the current
- * path and query string. Uses next-intl's locale-aware router so the locale
- * prefix is added/removed automatically (default locale stays unprefixed).
+ * Compact language selector. The visible chip shows only the uppercase locale
+ * code (e.g. `EN`, `ZH`) so its width stays small and fixed regardless of how
+ * long the active language's native name is (e.g. "Bahasa Indonesia"). A
+ * transparent native <select> is overlaid on top: it keeps full keyboard and
+ * screen-reader accessibility and renders the OS-native option list with the
+ * full native language names, so discoverability isn't lost.
  *
- * The current query is read from `window.location` at click time rather than
- * via `useSearchParams()` to avoid forcing a Suspense boundary on the layout.
+ * Switching preserves the current path and query string via next-intl's
+ * locale-aware router (the default locale stays unprefixed). The current query
+ * is read from `window.location` at change time rather than via
+ * `useSearchParams()` to avoid forcing a Suspense boundary on the layout.
  */
 export default function LocaleSwitcher({ className = "" }: { className?: string }) {
   const locale = useLocale();
@@ -31,29 +36,37 @@ export default function LocaleSwitcher({ className = "" }: { className?: string
   }
 
   return (
-    <div className={`relative inline-flex items-center ${className}`}>
-      <Languages className="pointer-events-none absolute start-2.5 h-4 w-4 text-gray-400" aria-hidden />
+    <div
+      className={`relative inline-flex items-center rounded-full border border-gray-300 bg-gray-50 text-sm text-gray-700 transition-colors hover:border-purple-300 focus-within:border-purple-400 focus-within:ring-2 focus-within:ring-purple-100 ${
+        isPending ? "opacity-60" : ""
+      } ${className}`}
+    >
+      <Languages className="pointer-events-none absolute start-2.5 top-1/2 h-4 w-4 -translate-y-1/2 text-gray-400" aria-hidden />
+      {/* Visible label — just the short code, keeps the chip narrow. */}
+      <span className="pointer-events-none py-1.5 ps-8 pe-7 font-medium uppercase">{locale}</span>
+      <svg
+        className="pointer-events-none absolute end-2.5 top-1/2 h-3.5 w-3.5 -translate-y-1/2 text-gray-400"
+        viewBox="0 0 12 12"
+        fill="none"
+        aria-hidden
+      >
+        <path d="M3 4.5 6 7.5 9 4.5" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" />
+      </svg>
+      {/* Transparent native <select> on top: drives selection + a11y, while the
+          OS option list still shows full native language names. */}
       <select
         value={locale}
         onChange={(e) => onSelect(e.target.value)}
         disabled={isPending}
         aria-label={t("label")}
-        className="appearance-none rounded-full border border-gray-300 bg-gray-50 py-1.5 ps-8 pe-7 text-sm text-gray-700 outline-none transition-colors hover:border-purple-300 focus:border-purple-400 focus:ring-2 focus:ring-purple-100 disabled:opacity-60"
+        className="absolute inset-0 h-full w-full cursor-pointer appearance-none opacity-0 outline-none disabled:cursor-default"
       >
         {routing.locales.map((l) => (
           <option key={l} value={l}>
             {LOCALE_META[l].nativeLabel}
           </option>
         ))}
       </select>
-      <svg
-        className="pointer-events-none absolute end-2.5 h-3.5 w-3.5 text-gray-400"
-        viewBox="0 0 12 12"
-        fill="none"
-        aria-hidden
-      >
-        <path d="M3 4.5 6 7.5 9 4.5" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" />
-      </svg>
     </div>
   );
 }

src/components/ui/AgentCard.tsx

@@ -1,7 +1,7 @@
 import { getTranslations } from "next-intl/server";
 import { Link } from "@/i18n/navigation";
 import { Zap, Layers, Star, GitFork } from "lucide-react";
-import { findScenario, scenarioLabel } from "@/lib/scenarios";
+import { findScenario } from "@/lib/scenarios";
 
 // Minimal translator shape so priceLabel can be called with or without i18n.
 type Translator = (key: string, values?: Record<string, string | number>) => string;
@@ -57,6 +57,7 @@ function formatStars(n: number): string {
 
 export default async function AgentCard({ agent }: { agent: AgentCardData }) {
   const t = await getTranslations("Components");
+  const tScenario = await getTranslations("Scenarios");
   const isProject = agent.kind === "PROJECT";
   return (
     <Link
@@ -87,14 +88,15 @@ export default async function AgentCard({ agent }: { agent: AgentCardData }) {
           {agent.scenarios.slice(0, 2).map((slug) => {
             const sc = findScenario(slug);
             if (!sc) return null;
+            const label = tScenario(slug);
             return (
               <span
                 key={slug}
-                title={scenarioLabel(sc)}
+                title={label}
                 className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-[10px] font-medium bg-purple-50 text-purple-600 max-w-full truncate"
               >
                 <span>{sc.emoji}</span>
-                {sc.nameZh}
+                {label}
               </span>
             );
           })}