feat(admin-web): add web/admin to repo

Initial commit of the Super-Admin web panel (Next.js + TypeScript).
CI admin-web-check job was failing because the directory was never
tracked in git.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/admin/src/i18n/routing.ts

@@ -0,0 +1,10 @@
+import { defineRouting } from "next-intl/routing";
+import { createNavigation } from "next-intl/navigation";
+
+export const routing = defineRouting({
+  locales: ["fa", "ar", "en"],
+  defaultLocale: "fa",
+});
+
+export const { Link, redirect, usePathname, useRouter } =
+  createNavigation(routing);