feat(auth): implement all 16 homepage/login/register review items

- add countArticles() (published-only, mirrors news-list) and warm total_articles
- localize homepage metadata; bind articleCount to both stats; unique photo alts
- drop duplicate news date and the mascot preload priorities
- extract shared AuthPageFrame/AuthUsersCards used by /login and /register
- login: localized noindex metadata, session redirect via safeRedirectPath,
  ?from passthrough from proxy, unified auth roster cache keys, registered notice
- register: localized metadata, session redirect to /me, unified cache keys
- add resend-verification flow on /verify with rate-limited non-enumerable action
- add safeRedirectPath() with unit tests
- register form: live requirements checklist + password mismatch guard
- login form: unverified state with resend-link CTA
- honour prefers-reduced-motion in TypewriterText
- add 6 translations across all 25 locales

src/actions/verify.ts

@@ -0,0 +1,54 @@
+"use server";
+
+import { eq } from "drizzle-orm";
+import { sendVerification } from "@/lib/auth/email-verification";
+import { db, User } from "@/lib/db";
+import { clientIp, rateLimit } from "@/lib/rate-limit";
+
+export interface ResendVerificationState {
+	ok: boolean;
+	error: string | null;
+}
+
+const EMAIL_RE = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+
+/**
+ * Re-send a verification e-mail for an address the visitor typed on /verify.
+ *
+ * Deliberately reports success even when no matching unverified account exists:
+ * a distinct failure would let anyone probe which addresses are registered. The
+ * identical-privacy behaviour also applies to the e-mail templates, which are
+ * only sent for real accounts. Rate limiting is the spam defence.
+ */
+export async function resendVerification(
+	_prevState: ResendVerificationState,
+	formData: FormData,
+): Promise<ResendVerificationState> {
+	const email = String(formData.get("email") ?? "")
+		.normalize("NFC")
+		.trim()
+		.toLowerCase();
+	if (!EMAIL_RE.test(email)) {
+		return { ok: false, error: "invalid" };
+	}
+
+	const ip = await clientIp();
+	if (!(await rateLimit(`verify:resend:${ip}`, 3, 10 * 60_000)).ok) {
+		return { ok: false, error: "rateLimited" };
+	}
+
+	try {
+		const [user] = await db
+			.select({ id: User.id, mailVerified: User.mailVerified })
+			.from(User)
+			.where(eq(User.mail, email))
+			.limit(1);
+		if (user && user.mailVerified !== "1") {
+			await sendVerification(email);
+		}
+	} catch {
+		return { ok: false, error: "unavailable" };
+	}
+
+	return { ok: true, error: null };
+}