Aggiunge i tornei con hub, pagina pubblica e tabellone per semifinali e finali.

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

backend/app/views/public/invitations/show.html.erb

@@ -1,13 +1,21 @@
 <% content_for :title, t("auth.invitation.meta_title") %>
 <% content_for :meta_description, t("auth.invitation.meta_description") %>
 <% content_for :robots, "noindex, nofollow" %>
+<%
+  display_name = if @tournament_invitation
+    @tournament_invitation.tournament.name
+  else
+    @invitation.team.name
+  end
+  email = (@invitation || @tournament_invitation).email
+%>
 
 <section class="auth-page">
   <div class="card">
-    <h1><%= raw t("auth.invitation.title_html", team_name: @invitation.team.name) %></h1>
-    <p><%= raw t("auth.invitation.role_notice_html", email: @invitation.email) %></p>
+    <h1><%= raw t("auth.invitation.title_html", team_name: display_name) %></h1>
+    <p><%= raw t("auth.invitation.role_notice_html", email: email) %></p>
     <p class="muted" style="font-size:0.9rem;margin-bottom:16px">
-      <%= raw t("auth.invitation.instructions_html", email: @invitation.email) %>
+      <%= raw t("auth.invitation.instructions_html", email: email) %>
     </p>
     <% if logged_in? %>
       <%= button_to t("auth.invitation.accept"), public_invitation_path(token: @token), method: :post, class: "btn btn-primary" %>
@@ -16,7 +24,7 @@
         "auth.invitation.login_or_signup_html",
         login_link: link_to(t("auth.invitation.login_link"), public_login_path),
         signup_link: link_to(t("auth.invitation.signup_link"), public_signup_path),
-        email: @invitation.email
+        email: email
       ) %></p>
       <%= button_to t("auth.invitation.accept_if_logged_in"), public_invitation_path(token: @token), method: :post, class: "btn btn-secondary" %>
     <% end %>