Brand the app as «برگ وسط» / Barg-e Vasat

- Name + tagline («بازی حکم آنلاین») across i18n (app.title/subtitle),
  layout metadata, PWA manifest, app icon, package name, server health
- Gameplay term «حکم» unchanged; repo/folder stay hokm/HokmPlay

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/lib/i18n.tsx

@@ -14,8 +14,8 @@ export type Locale = "fa" | "en";
 type Dict = Record<string, string>;
 
 const fa: Dict = {
-  "app.title": "حکم",
-  "app.subtitle": "بازی کارت اصیل ایرانی",
+  "app.title": "برگ وسط",
+  "app.subtitle": "بازی حکم آنلاین",
   "app.tagline": "تجربه‌ای لوکس از بازی حکم، با حریف‌های هوشمند",
 
   "home.play": "شروع بازی",
@@ -237,8 +237,8 @@ const fa: Dict = {
 };
 
 const en: Dict = {
-  "app.title": "Hokm",
-  "app.subtitle": "The classic Persian card game",
+  "app.title": "Barg-e Vasat",
+  "app.subtitle": "Online Hokm",
   "app.tagline": "A luxury Hokm experience with smart opponents",
 
   "home.play": "Play",