refactor: full codebase overhaul — dead code removal, env validation, logger migration, date consolidation, Prisma schema cleanup, button consistency, useEffect deps, test coverage

- env.ts: added 10 missing Zod-validated env vars (imager, paypal currency, argon2/bcrypt params)
- Migrated 6 modules from process.env to validated env.* (auth, proxy-auth, paypal, password, redis, imager, moderation, alert, logger)
- Replaced console.warn/error with pino logger in 9 server-side modules
- Removed 50+ dead exports (SWF wrappers, coalesceHotelName, signIn, isStaff re-export, formatTimestamp, Skeleton/SkeletonCard, 4 unused housekeeping sections)
- Consolidated date formatting: 28 files migrated to shared formatDate() from @/lib/format-date
- Wired 4 radio/settings API routes through cached siteSettings service instead of raw Prisma queries
- Added getMany()/getAll() helpers to SiteSettings service
- Removed 88 dead Prisma model definitions (schema 2763→1846 lines)
- Created admin action-helper.ts with wrapAction() for standardized error handling
- Fixed useEffect dependency arrays in 4 data-heavy components
- Replaced raw btn CSS classes with shadcn Button component across admin pages
- Stripped dead i18n namespaces (common, pages.client) from all 22 translation files
- Removed 2 dead scripts (create-release.sh, check-local-imports.ts)
- Fixed knip.json configuration
- Added 7 new test suites: format-date, paypal, moderation, alert, webhook, action-helper, and fixed password.test.ts for env mocking
- All 358 tests passing across 72 test files
- TypeScript: 0 errors

src/app/(site)/apply/staff/page.tsx

@@ -5,6 +5,7 @@ import { applyStaff } from "@/actions/applications";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
+import { formatDate } from "@/lib/format-date";
 import { resolveHotelName } from "@/lib/hotel-name";
 
 export const dynamic = "force-dynamic";
@@ -55,11 +56,6 @@ export default async function ApplyStaffPage({
 	const userId = Number(session.user.id);
 	const hotelName = await resolveHotelName();
 
-	function formatDeadline(d: Date | null | undefined): string {
-		if (!d) return t("noDeadline");
-		return d.toISOString().slice(0, 16).replace("T", " ");
-	}
-
 	// ── Open positions ──────────────────────────────────────────
 	// Each query is isolated so a DB hiccup degrades that section to empty
 	// rather than 500-ing the whole page.
@@ -149,7 +145,7 @@ export default async function ApplyStaffPage({
 								<div className="content-card-body">
 									<p style={{ margin: "0 0 0.5rem" }}>{position.description}</p>
 									<p className="muted" style={{ margin: "0 0 0.75rem" }}>
-										{t("deadline", { date: formatDeadline(position.applyTo) })}
+										{t("deadline", { date: formatDate(position.applyTo, "datetime", t("noDeadline")) })}
 									</p>
 
 									{alreadyApplied ? (

src/app/(site)/guilds/[id]/forum/[threadId]/page.tsx

@@ -4,6 +4,7 @@ import { getTranslations } from "next-intl/server";
 import type { CSSProperties } from "react";
 import { replyToThread } from "@/actions/social";
 import { ContentCard, EmptyState } from "@/components/public/ui";
+import { formatDate } from "@/lib/format-date";
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
 
@@ -27,11 +28,6 @@ function feedbackStyle(tone: "success" | "error"): CSSProperties {
 	};
 }
 
-function formatTimestamp(ts: number | null | undefined): string {
-	if (!ts) return "";
-	return new Date(ts * 1000).toISOString().slice(0, 16).replace("T", " ");
-}
-
 export default async function GuildForumThreadPage({
 	params,
 	searchParams,
@@ -220,7 +216,7 @@ export default async function GuildForumThreadPage({
 											)}
 										</span>
 										<span className="muted" style={{ fontSize: "0.85rem" }}>
-											{formatTimestamp(post.createdAt)}
+											{formatDate(post.createdAt ? new Date(post.createdAt * 1000) : null)}
 										</span>
 									</div>
 									<p

src/app/(site)/guilds/[id]/forum/page.tsx

@@ -2,6 +2,7 @@ import Link from "next/link";
 import { notFound } from "next/navigation";
 import { getTranslations } from "next-intl/server";
 import type { CSSProperties } from "react";
+import { formatDate } from "@/lib/format-date";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { prisma } from "@/lib/prisma";
 
@@ -36,11 +37,6 @@ type ThreadRow = {
 	locked: number | null;
 };
 
-function formatTimestamp(ts: number | null | undefined): string {
-	if (!ts) return "";
-	return new Date(ts * 1000).toISOString().slice(0, 10);
-}
-
 export default async function GuildForumPage({
 	params,
 	searchParams,
@@ -194,7 +190,7 @@ export default async function GuildForumPage({
 											{t2.postsCount ?? 0}
 										</td>
 										<td className="muted" style={{ padding: "0.6rem 0.75rem" }}>
-											{formatTimestamp(t2.createdAt)}
+											{formatDate(t2.createdAt ? new Date(t2.createdAt * 1000) : null, "date")}
 										</td>
 									</tr>
 								);

src/app/(site)/guilds/[id]/page.tsx

@@ -4,6 +4,7 @@ import { getTranslations } from "next-intl/server";
 import { ContentCard, EmptyState, StatBlock } from "@/components/public/ui";
 import { avatarImageUrl } from "@/lib/format";
 import { prisma } from "@/lib/prisma";
+import { formatDate } from "@/lib/format-date";
 import { siteSettings } from "@/lib/services/site-settings";
 
 export const revalidate = 300;
@@ -26,11 +27,6 @@ type MemberView = {
 	isOwner: boolean;
 };
 
-function formatTimestamp(ts: number): string {
-	if (!ts) return "";
-	return new Date(ts * 1000).toISOString().slice(0, 10);
-}
-
 export default async function GuildPage({
 	params,
 }: {
@@ -123,7 +119,7 @@ export default async function GuildPage({
 			return a.memberSince - b.memberSince;
 		});
 
-	const created = formatTimestamp(guild.dateCreated);
+	const created = formatDate(new Date(guild.dateCreated * 1000), "date");
 
 	return (
 		<main style={{ display: "grid", gap: "1.5rem" }}>

src/app/(site)/marketplace/page.tsx

@@ -1,4 +1,5 @@
 import { getTranslations } from "next-intl/server";
+import { formatDate } from "@/lib/format-date";
 import { ContentCard, EmptyState, StatBlock } from "@/components/public/ui";
 import { prisma } from "@/lib/prisma";
 
@@ -26,10 +27,6 @@ function listedAgo(ts: number, t: RelativeTimeTranslator): string {
 	return t("daysAgo", { count: days });
 }
 
-function listedAt(ts: number): string {
-	return new Date(ts * 1000).toISOString().slice(0, 16).replace("T", " ");
-}
-
 export default async function MarketplacePage() {
 	const t = await getTranslations("pages.marketplace");
 	let offers: {
@@ -127,7 +124,7 @@ export default async function MarketplacePage() {
 										<td style={{ fontWeight: 700 }}>
 											{o.price.toLocaleString()} cr
 										</td>
-										<td className="muted" title={listedAt(o.timestamp)}>
+										<td className="muted" title={formatDate(new Date(o.timestamp * 1000))}>
 											{listedAgo(o.timestamp, t)}
 										</td>
 									</tr>

src/app/(site)/messages/page.tsx

@@ -11,6 +11,7 @@ import { ContentCard, EmptyState } from "@/components/public/ui";
 import { auth } from "@/lib/auth";
 import { avatarImageUrl } from "@/lib/format";
 import { prisma } from "@/lib/prisma";
+import { formatDate } from "@/lib/format-date";
 import { siteSettings } from "@/lib/services/site-settings";
 
 export const dynamic = "force-dynamic";
@@ -39,12 +40,6 @@ function feedbackStyle(tone: "success" | "error"): CSSProperties {
 	};
 }
 
-function formatTimestamp(seconds: number): string {
-	if (!seconds) return "";
-	// sended_on is a unix timestamp in seconds (emulator convention).
-	return new Date(seconds * 1000).toISOString().slice(0, 16).replace("T", " ");
-}
-
 export default async function MessagesPage({
 	searchParams,
 }: {
@@ -353,7 +348,7 @@ export default async function MessagesPage({
 								size: "s",
 								headOnly: true,
 							});
-							const when = formatTimestamp(msg.sendedOn);
+							const when = formatDate(new Date(msg.sendedOn * 1000));
 							return (
 								<article
 									key={msg.id}

src/app/(site)/news/[slug]/page.tsx

@@ -205,7 +205,7 @@ export default async function ArticlePage({
 				title={article.title}
 				subtitle={
 					article.createdAt
-						? article.createdAt.toISOString().slice(0, 10)
+						? formatDate(article.createdAt, "date")
 						: undefined
 				}
 				action={

src/app/(site)/photos/page.tsx

@@ -3,6 +3,7 @@ import {
 	type LightboxPhoto,
 	PhotoLightbox,
 } from "@/components/public/photo-lightbox";
+import { formatDate } from "@/lib/format-date";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { prisma } from "@/lib/prisma";
 
@@ -18,13 +19,6 @@ type Photo = {
 	url: string;
 };
 
-function formatDate(timestamp: number): string {
-	return new Date(timestamp * 1000)
-		.toISOString()
-		.slice(0, 16)
-		.replace("T", " ");
-}
-
 export default async function PhotosPage() {
 	const t = await getTranslations("pages.photos");
 
@@ -44,7 +38,7 @@ export default async function PhotosPage() {
 		id: String(p.id),
 		url: p.url,
 		alt: t("photoAlt", { id: p.userId }),
-		date: formatDate(p.timestamp),
+		date: formatDate(new Date(p.timestamp * 1000)),
 		user: t("byUser", { id: p.userId }),
 	}));
 

src/app/(site)/radio/apply/page.tsx

@@ -4,6 +4,7 @@ import type { CSSProperties } from "react";
 import { applyDj } from "@/actions/radio-apply";
 import { ContentCard } from "@/components/public/ui";
 import { auth } from "@/lib/auth";
+import { formatDate } from "@/lib/format-date";
 import { prisma } from "@/lib/prisma";
 
 export const dynamic = "force-dynamic";
@@ -57,7 +58,7 @@ export default async function RadioApplyPage({
 		.catch(() => null);
 
 	const submittedDate = existing?.createdAt
-		? existing.createdAt.toISOString().slice(0, 10)
+		? formatDate(existing.createdAt, "date")
 		: null;
 
 	return (

src/app/(site)/settings/sessions/page.tsx

@@ -3,16 +3,13 @@ import { getTranslations } from "next-intl/server";
 import { signOutEverywhere } from "@/actions/sessions";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { auth } from "@/lib/auth";
+import { formatDate } from "@/lib/format-date";
 import { prisma } from "@/lib/prisma";
 
 export const dynamic = "force-dynamic";
 
 type SearchParams = Promise<{ signedOutAll?: string }>;
 
-function fromDate(d: Date | null | undefined): string {
-	return d ? d.toISOString().slice(0, 16).replace("T", " ") : "—";
-}
-
 /** Tiny user-agent → "Browser on OS" summary (no dependency). */
 function deviceLabel(ua: string | null, unknown: string): string {
 	if (!ua) return unknown;
@@ -123,7 +120,7 @@ export default async function SessionsPage({
 							{logins.map((l) => (
 								<tr key={String(l.id)}>
 									<td className="muted" style={{ whiteSpace: "nowrap" }}>
-										{fromDate(l.createdAt)}
+										{formatDate(l.createdAt)}
 									</td>
 									<td className="muted">{l.ip}</td>
 									<td>{deviceLabel(l.userAgent, t("unknownDevice"))}</td>
@@ -151,9 +148,7 @@ export default async function SessionsPage({
 							{failed.map((f) => (
 								<tr key={f.id}>
 									<td className="muted" style={{ whiteSpace: "nowrap" }}>
-										{typeof f.attempted_at === "string"
-											? f.attempted_at.slice(0, 16).replace("T", " ")
-											: fromDate(f.attempted_at)}
+									{formatDate(typeof f.attempted_at === "string" ? new Date(f.attempted_at) : f.attempted_at)}
 									</td>
 									<td className="muted">{f.ip_address}</td>
 								</tr>

src/app/(site)/u/[username]/page.tsx

@@ -67,10 +67,7 @@ const BADGE_IMG_BASE = "https://images.habbo.com/c_images/album1584";
 const CURRENCY_DUCKETS = 0;
 const CURRENCY_DIAMONDS = 5;
 
-function formatTimestamp(ts: number | null | undefined): string {
-	if (!ts) return "";
-	return new Date(ts * 1000).toISOString().slice(0, 10);
-}
+
 
 export default async function ProfilePage({
 	params,
@@ -107,9 +104,7 @@ export default async function ProfilePage({
 	if (!user) notFound();
 
 	const avatar = avatarImageUrl(imagerBase ?? "", user.look, { size: "l" });
-	const registered = new Date(user.accountCreated * 1000)
-		.toISOString()
-		.slice(0, 10);
+	const registered = formatDate(new Date(user.accountCreated * 1000), "date");
 	const meId = Number(session?.user?.id);
 	const isLoggedIn = Number.isInteger(meId) && meId > 0;
 	const isSelf = isLoggedIn && meId === user.id;
@@ -601,7 +596,7 @@ export default async function ProfilePage({
 									}}
 								/>
 								<p className="muted" style={{ margin: "0.4rem 0 0" }}>
-									{formatTimestamp(p.timestamp)}
+									{formatDate(new Date(p.timestamp * 1000), "date")}
 								</p>
 							</div>
 						))}