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/verify/page.tsx

@@ -1,4 +1,5 @@
 import Link from "next/link";
+import { getTranslations } from "next-intl/server";
 import { isValidVerificationToken } from "@/actions/email-verify";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { prisma } from "@/lib/prisma";
@@ -13,6 +14,7 @@ export default async function VerifyPage({
 }: {
   searchParams: Promise<{ token?: string; email?: string }>;
 }) {
+  const t = await getTranslations("pages.verify");
   // Next 16: searchParams is a Promise.
   const { token = "", email = "" } = await searchParams;
   const normalisedEmail = email.trim().toLowerCase();
@@ -53,38 +55,37 @@ export default async function VerifyPage({
   return (
     <main style={{ maxWidth: 480, margin: "2rem auto" }}>
       {status === "verified" ? (
-        <ContentCard icon="✅" title="You're all set" subtitle="Email verified">
+        <ContentCard icon="✅" title={t("verifiedTitle")} subtitle={t("verifiedSubtitle")}>
           <p className="muted" style={{ marginTop: 0 }}>
-            Your email address has been verified. You can now log in and play.
+            {t("verifiedBody")}
           </p>
           <Link href="/login" className="btn btn-primary">
-            Go to login
+            {t("goToLogin")}
           </Link>
         </ContentCard>
       ) : status === "already" ? (
-        <ContentCard icon="✅" title="Already verified" subtitle="Nothing left to do">
+        <ContentCard icon="✅" title={t("alreadyTitle")} subtitle={t("alreadySubtitle")}>
           <p className="muted" style={{ marginTop: 0 }}>
-            This email address has already been confirmed.
+            {t("alreadyBody")}
           </p>
           <Link href="/login" className="btn btn-primary">
-            Go to login
+            {t("goToLogin")}
           </Link>
         </ContentCard>
       ) : status === "unavailable" ? (
-        <ContentCard icon="⏳" title="Try again shortly" subtitle="Server unreachable">
+        <ContentCard icon="⏳" title={t("unavailableTitle")} subtitle={t("unavailableSubtitle")}>
           <p className="muted" style={{ margin: 0 }}>
-            We couldn't reach the server to verify your email. Please retry the link in a moment.
+            {t("unavailableBody")}
           </p>
         </ContentCard>
       ) : (
-        <ContentCard icon="📧" title="Email verification" subtitle="Invalid or expired link">
+        <ContentCard icon="📧" title={t("invalidTitle")} subtitle={t("invalidSubtitle")}>
           <EmptyState icon="🔗">
-            This verification link is not valid. Make sure you opened the full link from your email,
-            or request a new one.
+            {t("invalidBody")}
           </EmptyState>
           <div style={{ textAlign: "center" }}>
             <Link href="/login" className="btn btn-outline">
-              Back to login
+              {t("backToLogin")}
             </Link>
           </div>
         </ContentCard>