Marketing site (bargevasat.ir) + admin-editable store links + subdomain split

- New standalone Next.js marketing site under site/ (static export, SEO):
  landing, download/install guide (Bazaar/Myket/iOS-PWA/web), FAQ (JSON-LD),
  privacy, terms, support, /admin link editor. fa RTL, sitemap/robots/manifest.
- Backend: SiteLinksService (JSON-file persisted) + GET /api/site/links (public)
  + POST /api/admin/site/links (X-Admin-Token). ADMIN_TOKEN + Site__DataDir via env.
- compose: hokm-site service (:1520) + hokm_data volume for links JSON.
- CI deploy job builds + deploys the site container.
- deploy/SUBDOMAIN_SPLIT.md: nginx blocks, cert reissue, DNS, ENV split.
- Exclude site/ from root tsc + web docker context.

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

site/lib/site.ts

@@ -0,0 +1,13 @@
+// Build-time public config (baked into the static bundle).
+export const API_URL = (process.env.NEXT_PUBLIC_API_URL || "https://api.bargevasat.ir").replace(/\/$/, "");
+export const APP_URL = (process.env.NEXT_PUBLIC_APP_URL || "https://app.bargevasat.ir").replace(/\/$/, "");
+export const SITE_URL = (process.env.NEXT_PUBLIC_SITE_URL || "https://bargevasat.ir").replace(/\/$/, "");
+
+export const BRAND = {
+  nameFa: "برگ وسط",
+  nameEn: "Barg-e Vasat",
+  taglineFa: "بازی حکمِ آنلاین، رایگان و حرفه‌ای",
+  descFa:
+    "برگ وسط، بازی حکم ایرانی به‌صورت آنلاین: با دوستان یا هوش مصنوعی بازی کن، در لیگ‌ها بالا برو، سکه و دستاورد جمع کن. روی اندروید، iOS و مرورگر.",
+  email: "support@bargevasat.ir",
+};