perf: self-host fonts, drop unused generated code and add swf tests

- Self-host Nunito and Pixelify Sans via next/font instead of Google Fonts CDN
  (removes render-blocking external stylesheets and preconnects)
- Remove stale mariadb entry from serverExternalPackages (app uses mysql2)
- Exclude unused src/generated Prisma client from typecheck and remove it
- Add unit tests for swf-parser, effectmap and figuremap (0% coverage -> 90%+)

src/app/layout.tsx

@@ -1,4 +1,5 @@
 import type { Metadata } from "next";
+import { Nunito, Pixelify_Sans } from "next/font/google";
 import { headers } from "next/headers";
 import Script from "next/script";
 import { NextIntlClientProvider } from "next-intl";
@@ -14,6 +15,20 @@ import { resolveHotelName } from "@/lib/hotel-name";
 import { siteSettings } from "@/lib/services/site-settings";
 import "./globals.css";
 
+const nunito = Nunito({
+	subsets: ["latin"],
+	weight: ["400", "600", "700", "800"],
+	variable: "--font-nunito",
+	display: "swap",
+});
+
+const pixelify = Pixelify_Sans({
+	subsets: ["latin"],
+	weight: ["400", "700"],
+	variable: "--font-pixel",
+	display: "swap",
+});
+
 // The root layout reads runtime data (locale cookie, request headers via
 // enforceSiteAccess, DB-backed site settings) to render the <html> element,
 // which cannot be wrapped in <Suspense>. Child pages inherit this opt-out,
@@ -58,23 +73,13 @@ export default async function RootLayout({
 	const nonce = (await headers()).get("x-nonce") ?? undefined;
 
 	return (
-		<html lang={locale} className="app" suppressHydrationWarning>
+		<html
+			lang={locale}
+			className={`app ${nunito.variable} ${pixelify.variable}`}
+			suppressHydrationWarning
+		>
 			<head>
 				<meta name="theme-default-dark" content={String(defaultDark)} />
-				<link rel="preconnect" href="https://fonts.googleapis.com" />
-				<link
-					rel="preconnect"
-					href="https://fonts.gstatic.com"
-					crossOrigin="anonymous"
-				/>
-				<link
-					rel="stylesheet"
-					href="https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap"
-				/>
-				<link
-					rel="stylesheet"
-					href="https://fonts.googleapis.com/css2?family=Pixelify+Sans:wght@400;700&display=swap"
-				/>
 				<Script
 					src="/scripts/theme-init.js"
 					strategy="beforeInteractive"