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)/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" }}>