feat(profile): role-aware nav + avatar menu + full editable profile

Navigation:
- UserMenu (avatar + role-aware dropdown: Dashboard, Admin Panel for admins,
  Profile, Sign out) replaces Sign In/Try Free when logged in (desktop + mobile).
- Real avatars in dashboard sidebar + a new admin-shell profile section.
- Shared Avatar primitive (image with initials fallback). SiteChrome excludes /admin.

Profile (data-collection surface for future AI video generation):
- SettingsProfile rebuilt: avatar upload + slogan, about, company, website,
  country, national code, birthdate, gender. No resume builder (per scope change).
- /api/profile forwards all fields; new user-scoped /api/profile/upload (avatar →
  MinIO via file-svc, sets avatar). Identity UpdateUserRequest/UserResponse widened
  (country/national/method); no DB migration (columns already exist).
- fa+en strings; verified GET/PATCH round-trip + logged-in SSR render.

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

src/app/[locale]/admin/layout.tsx

@@ -73,8 +73,20 @@ export default async function AdminLayout({
     },
   ];
 
+  const email = user.email ?? "";
+  const fullName = typeof user.full_name === "string" ? user.full_name.trim() : "";
+
   return (
-    <AdminShell groups={groups} brand={t("brand")} back={t("backToDashboard")}>
+    <AdminShell
+      groups={groups}
+      brand={t("brand")}
+      back={t("backToDashboard")}
+      user={{
+        name: fullName || (email ? email.split("@")[0] : "Admin"),
+        email,
+        avatarUrl: (user.avatar_url as string | null) ?? null,
+      }}
+    >
       {children}
     </AdminShell>
   );