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]>

tsconfig.json

@@ -30,5 +30,5 @@
 		".next/types/**/*.ts",
 		".next/dev/types/**/*.ts"
 	],
-	"exclude": ["node_modules"]
+	"exclude": ["node_modules", "e2e", "playwright.config.ts"]
 }