Salva telemetria client (OS, app, device, operatore) sulle sessioni per il debug admin.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/helpers/admin_helper.rb

@@ -81,6 +81,29 @@ module AdminHelper
     end
   end
 
+  def admin_session_client_os_label(session)
+    case session.client_os.to_s
+    when "android" then "Android"
+    when "ios" then "iOS"
+    else I18n.t("admin.common.dash")
+    end
+  end
+
+  def admin_session_client_summary(session)
+    parts = []
+    parts << admin_session_client_os_label(session) if session.client_os.present?
+    if session.app_version.present?
+      ver = session.app_version
+      ver = "#{ver} (#{session.app_build})" if session.app_build.present?
+      parts << "app #{ver}"
+    end
+    device = [session.device_manufacturer, session.device_model].compact_blank.join(" ")
+    parts << device if device.present?
+    parts << "OS #{session.os_version}" if session.os_version.present?
+    parts << session.carrier if session.carrier.present?
+    parts.presence&.join(" · ") || I18n.t("admin.common.dash")
+  end
+
   def admin_format_event_meta(metadata)
     return content_tag(:span, I18n.t("admin.common.dash"), class: "muted") if metadata.blank?