perf: optimize CMS queries, caching, and asset delivery

Database:
- Add missing indexes (users.credits, users_currency(type,amount),
  users_settings.respects_received, camera_web.timestamp,
  messenger_offline.user_id) via migrations 0020/0021
- Use partial .select() everywhere instead of SELECT * (tickets, users,
  rooms, audit logs, catalog tree, polls, radio, password reset)
- Add queryPrepared/queryPreparedOne (server-side prepared statements)
  and switch the login check to a prepared statement; drop dead
  cache options from the pool config
- Raise total_users/total_rooms COUNT(*) cache TTL to 5m

Caching:
- Consolidate the three cache helpers (cached, redisCache, cachedQuery)
  into a single memory-first implementation backed by Redis
- invalidateKey now clears the in-process cache as well as Redis
- Cache homepage sections, news list, and leaderboard tabs; share one
  news_list cache key between homepage and news archive
- siteSettings: in-process cache with TTL so repeated getters no longer
  pay a Redis round-trip per call
- Share a 10s poll cache across all radio SSE connections
- Normalize timestamps after cache reads (Redis JSON round-trip)

Assets:
- Enable AVIF/WebP via images.formats and remove unoptimized from news
  covers and the homepage hero (149KB jpg) with proper sizes/priority
- Support ?format=webp|avif|png in the /imaging proxy via sharp

Other:
- Fix pnpm supply-chain minimumReleaseAge failures by excluding the
  freshly-published packages (next 16.3.1, hookform resolvers 5.8.0,
  resend 6.20.0)
- Remove unused before/after fields from housekeeping AuditEntry

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

@@ -228,6 +228,7 @@ export default async function ArticlePage({
 					<img
 						src={article.image}
 						alt=""
+						decoding="async"
 						style={{ width: "100%", borderRadius: 10, margin: "0 0 1rem" }}
 					/>
 				) : null}

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

@@ -1,28 +1,17 @@
-import { desc } from "drizzle-orm";
 import Image from "next/image";
 import Link from "next/link";
 import { getTranslations } from "next-intl/server";
 import { ContentCard, EmptyState } from "@/components/public/ui";
-import { db, WebsiteArticles } from "@/lib/db";
 import { excerpt } from "@/lib/format";
 import { formatDate } from "@/lib/format-date";
+import { getNewsList } from "@/lib/services/news-list";
 
 export const metadata = { title: "News" };
 
 export default async function NewsPage() {
 	const t = await getTranslations("pages.news");
 
-	let articles: (typeof WebsiteArticles.$inferSelect)[] = [];
-	try {
-		articles = await db
-			.select()
-			.from(WebsiteArticles)
-			.orderBy(desc(WebsiteArticles.createdAt))
-			.limit(30);
-	} catch {
-		// DB unavailable — render the empty state rather than a 500.
-		articles = [];
-	}
+	const articles = await getNewsList(30);
 
 	return (
 		<main style={{ display: "grid", gap: "1.5rem" }}>
@@ -58,8 +47,8 @@ export default async function NewsPage() {
 											src={a.image}
 											alt=""
 											fill
+											sizes="(max-width: 1024px) 50vw, 300px"
 											style={{ objectFit: "cover" }}
-											unoptimized
 										/>
 									</div>
 								) : (