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/sessions/index.html.erb

@@ -1,12 +1,18 @@
 <h2>Stream Sessions</h2>
   <table class="admin-table">
-  <thead><tr><th>Match</th><th>Status</th><th>Disconnects</th><th></th></tr></thead>
+  <thead><tr><th>Match</th><th>Status</th><th>Disconnects</th><th>Link</th><th></th></tr></thead>
   <tbody>
     <% @sessions.each do |s| %>
       <tr>
         <td><%= s.match.team.name %> vs <%= s.match.opponent_name %></td>
         <td><span class="badge <%= s.status == 'live' ? 'badge--live' : 'badge--paused' %>"><%= s.status %></span></td>
         <td><%= s.disconnection_count %></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><%= link_to "Dettaglio", admin_session_path(s) %></td>
       </tr>
     <% end %>