i18n: translate all public page bodies (EN + IT)

Internationalised the ~44 public pages with next-intl (the shell was
already translated). Each page now pulls its copy from a "pages.<slug>"
namespace via getTranslations (server) / useTranslations (client); the
EN + IT catalogs were authored by parallel agents and merged centrally,
with natural Italian (ICU plurals) and it backfilled from en for any
gap. request.ts gained getMessageFallback/onError so a missing key
degrades to the English value, never a raw key.

Behaviour unchanged (only display text moved to t() calls; queries,
actions, fields, ContentCard structure preserved). Verified on the prod
server: with NEXT_LOCALE=it, home/community/staff/news/shop/rankings all
render Italian copy, no raw-key leakage; English unchanged. The nav
language switcher toggles EN/IT live. tsc 0, vitest 49/49, next build 0.

Admin pages intentionally left in English (staff tooling).

src/app/community/page.tsx

@@ -1,3 +1,4 @@
+import { useTranslations } from "next-intl";
 import Link from "next/link";
 import { ContentCard } from "@/components/public/ui";
 
@@ -7,50 +8,46 @@ export const metadata = { title: "Community" };
 
 const LINKS = [
   {
+    key: "rankings",
     href: "/rankings",
     icon: "🏆",
-    title: "Rankings",
-    text: "See the wealthiest players in the hotel, ranked by credits.",
   },
   {
+    key: "staff",
     href: "/staff",
     icon: "🛡️",
-    title: "Staff",
-    text: "Meet the team that keeps the hotel running every day.",
   },
   {
+    key: "news",
     href: "/news",
     icon: "📰",
-    title: "News",
-    text: "The latest announcements, events and updates.",
   },
   {
+    key: "photos",
     href: "/photos",
     icon: "📸",
-    title: "Photos",
-    text: "Snapshots shared by the community from around the hotel.",
   },
   {
+    key: "guilds",
     href: "/guilds",
     icon: "🚪",
-    title: "Guilds",
-    text: "Browse the groups players have created and joined.",
   },
   {
+    key: "leaderboards",
     href: "/leaderboard",
     icon: "📊",
-    title: "Leaderboards",
-    text: "Who's on top this season across the hotel's stats.",
   },
 ];
 
 export default function CommunityPage() {
+  const t = useTranslations("pages.community");
+
   return (
     <main style={{ display: "grid", gap: "1.5rem" }}>
       <ContentCard
         icon="🌍"
-        title="Community"
-        subtitle="Everything happening around the hotel in one place"
+        title={t("title")}
+        subtitle={t("subtitle")}
       />
 
       <div className="card-grid sm-2 lg-3">
@@ -66,14 +63,14 @@ export default function CommunityPage() {
                 {l.icon}
               </span>
               <div className="content-card-head-text">
-                <p className="content-card-title">{l.title}</p>
+                <p className="content-card-title">{t(`links.${l.key}.title`)}</p>
               </div>
             </div>
             <div className="content-card-body">
               <p className="muted" style={{ margin: "0 0 0.75rem" }}>
-                {l.text}
+                {t(`links.${l.key}.text`)}
               </p>
-              <span className="btn btn-outline">Open →</span>
+              <span className="btn btn-outline">{t("open")}</span>
             </div>
           </Link>
         ))}