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)/me/page.tsx

@@ -18,7 +18,6 @@ import {
 	UsersBadges,
 	UsersSettings,
 	WebsiteLoginLogs,
-	WebsiteSetting,
 } from "@/lib/db";
 import { avatarImageUrl } from "@/lib/format";
 import { resolveHotelName } from "@/lib/hotel-name";
@@ -85,9 +84,9 @@ export default async function MePage({
 		const [
 			userRows,
 			hotelName,
-			neededRows,
-			amountRows,
-			currencyRows,
+			neededRaw,
+			rewardAmountRaw,
+			currencySettings,
 			alertRaw,
 			recentRooms,
 			badges,
@@ -112,29 +111,12 @@ export default async function MePage({
 				.where(eq(User.id, userId))
 				.limit(1),
 			resolveHotelName(),
-			db
-				.select({ value: WebsiteSetting.value })
-				.from(WebsiteSetting)
-				.where(eq(WebsiteSetting.key, "referrals_needed"))
-				.limit(1)
-				.catch(() => []),
-			db
-				.select({ value: WebsiteSetting.value })
-				.from(WebsiteSetting)
-				.where(eq(WebsiteSetting.key, "referral_reward_amount"))
-				.limit(1)
-				.catch(() => []),
-			db
-				.select({ value: WebsiteSetting.value })
-				.from(WebsiteSetting)
-				.where(
-					inArray(WebsiteSetting.key, [
-						"referral_reward_currency_type",
-						"referral_reward_currency",
-					]),
-				)
-				.limit(1)
-				.catch(() => []),
+			siteSettings.get("referrals_needed", "5"),
+			siteSettings.get("referral_reward_amount", "30"),
+			siteSettings.getMany([
+				"referral_reward_currency_type",
+				"referral_reward_currency",
+			]),
 			siteSettings.get("hotel_alert_banner", ""),
 			db
 				.select({
@@ -191,9 +173,6 @@ export default async function MePage({
 		]);
 
 		const user = userRows[0] ?? null;
-		const neededRaw = neededRows[0] ?? null;
-		const amountRaw = amountRows[0] ?? null;
-		const currencyRaw = currencyRows[0] ?? null;
 		const lastWebLogin = lastWebLoginRows[0] ?? null;
 		const userSettings = userSettingsRows[0] ?? null;
 		const friendCount = Number(friendCountRows[0]?.value ?? 0);
@@ -203,9 +182,13 @@ export default async function MePage({
 
 		if (!user) throw new Error("user-not-found");
 
-		const needed = Number.parseInt(neededRaw?.value ?? "5", 10) || 5;
-		const rewardAmount = Number.parseInt(amountRaw?.value ?? "30", 10) || 0;
-		const rewardCurrency = (currencyRaw?.value ?? "diamonds")
+		const needed = Number.parseInt(neededRaw ?? "5", 10) || 5;
+		const rewardAmount = Number.parseInt(rewardAmountRaw ?? "30", 10) || 0;
+		const rewardCurrency = (
+			currencySettings.referral_reward_currency_type ??
+			currencySettings.referral_reward_currency ??
+			"diamonds"
+		)
 			.trim()
 			.toLowerCase();