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/manifest.ts

@@ -1,11 +1,12 @@
 import type { MetadataRoute } from "next";
+import { resolveHotelName } from "@/lib/hotel-name";
 import { siteSettings } from "@/lib/services/site-settings";
 
 // Web app manifest — makes the hotel installable as a PWA (AtomCMS exposed PWA
 // settings but the rewrite ships a real, themeable manifest). Name + theme
 // colour follow the live website_settings; falls back to defaults with no DB.
 export default async function manifest(): Promise<MetadataRoute.Manifest> {
-	const name = (await siteSettings.get("hotel_name", "Atom")) ?? "Atom";
+	const name = await resolveHotelName();
 	const theme =
 		(await siteSettings.get("color_primary", "#f59e0b")) ?? "#f59e0b";