Stabilizza regia, live web e sync punteggi app nativa.

Corregge scadenza token regia oltre le 8h, tabellone HTML sulla pagina live,
pulsanti pausa/ripresa in regia, link admin e broadcast ActionCable diretto.
App Android: overlay branding, sync score da regia via WebSocket con reconnect e poll.

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

backend/app/views/admin/dashboard/index.html.erb

@@ -91,7 +91,7 @@
     <% if @active_sessions.any? %>
       <table class="admin-table">
         <thead>
-          <tr><th>Partita</th><th>Stato</th><th>Inizio</th><th></th></tr>
+          <tr><th>Partita</th><th>Stato</th><th>Inizio</th><th>Link</th><th></th></tr>
         </thead>
         <tbody id="active-sessions-body">
           <% @active_sessions.each do |s| %>
@@ -99,6 +99,12 @@
               <td><%= s.match.team.name %> vs <%= s.match.opponent_name %></td>
               <td><span class="badge badge--<%= s.status == 'live' ? 'live' : (s.status == 'paused' ? 'paused' : 'connecting') %>"><%= s.status %></span></td>
               <td class="muted"><%= s.started_at&.strftime("%d/%m %H:%M") || "—" %></td>
+              <td class="admin-link-compact">
+                <% admin_session_watch_links(s).each do |link| %>
+                  <%= link_to link[:label], link[:url], target: "_blank", rel: "noopener", class: "admin-link-chip" %>
+                <% end %>
+                <%= link_to "Regia", admin_session_path(s), class: "admin-link-chip admin-link-chip--regia" %>
+              </td>
               <td class="admin-actions">
                 <%= link_to "Dettaglio", admin_session_path(s) %>
                 <%= button_to "Termina", stop_admin_session_path(s), method: :post, class: "admin-btn admin-btn--danger admin-btn--sm", form: { data: { turbo_confirm: "Terminare questa sessione?" } } %>