refactor: centralize hotel name fallback via FALLBACK_HOTEL_NAME

Route all user-facing Atom hotel defaults through resolveHotelName (settings then HOTEL_NAME env then brand constant). Exclude Playwright e2e from tsconfig until deps are installed.

Co-authored-by: Cursor <[email protected]>

src/app/layout.tsx

@@ -10,6 +10,7 @@ import { PwaRegister } from "@/components/pwa-register";
 import { ThemeVars } from "@/components/theme-vars";
 import { SmoothScroll } from "@/components/smooth-scroll";
 import { enforceSiteAccess } from "@/lib/access-guard";
+import { resolveHotelName } from "@/lib/hotel-name";
 import { siteSettings } from "@/lib/services/site-settings";
 import "./globals.css";
 
@@ -29,7 +30,7 @@ const pixelFont = Pixelify_Sans({
 
 export async function generateMetadata(): Promise<Metadata> {
 	const appUrl = process.env.APP_URL ?? "http://localhost:3000";
-	const hotel = (await siteSettings.get("hotel_name", "Atom")) ?? "Atom";
+	const hotel = await resolveHotelName();
 	const customFavicon = await siteSettings.get("cms_favicon");
 	const faviconUrl = customFavicon ?? "/favicon.svg";
 	const icons = [