Billing: fatture manuali, profilo obbligatorio e piani Stripe mensile/annuale.

Rimuove link al portale Stripe in area cliente, aggiunge flusso admin per PDF
fattura e email, blocca checkout senza dati di fatturazione, allinea prezzi
a €4,90/€39,90 e €9,90/€69,90, locale italiano e documentazione deploy.

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

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

@@ -1,10 +1,56 @@
-<h1>Fatture — <%= @club.name %></h1>
-<p><%= link_to "← Dashboard", admin_root_path %> · <%= link_to "Nuova fattura", new_admin_club_billing_invoice_path(@club), class: "btn btn-primary" %></p>
+<h1>Fatturazione — <%= @club.name %></h1>
+<p>
+  <%= link_to "← Dashboard", admin_root_path %>
+  · <%= link_to "Nuova fattura (senza pagamento)", new_admin_club_billing_invoice_path(@club), class: "btn btn-secondary" %>
+</p>
 
+<h2 style="margin-top:24px;font-size:1.1rem">Pagamenti</h2>
+<% if @payments.any? %>
+  <table class="data">
+    <thead>
+      <tr>
+        <th>Data</th>
+        <th>Descrizione</th>
+        <th>Importo</th>
+        <th>Fattura</th>
+        <th></th>
+      </tr>
+    </thead>
+    <tbody>
+      <% @payments.each do |payment| %>
+        <% inv = payment.invoice %>
+        <tr>
+          <td><%= payment.paid_at&.to_date || payment.created_at.to_date %></td>
+          <td><%= payment.display_description %></td>
+          <td><%= payment.formatted_amount %></td>
+          <td>
+            <% if inv %>
+              <%= inv.number %> — <%= inv.status %>
+              <% if inv.pdf.attached? %> (PDF)<% end %>
+            <% else %>
+              —
+            <% end %>
+          </td>
+          <td>
+            <% if inv %>
+              <%= link_to "Modifica / invia PDF", edit_admin_club_billing_invoice_path(@club, inv) %>
+            <% else %>
+              <%= link_to "Crea fattura", new_admin_club_billing_invoice_path(@club, billing_payment_id: payment.id), class: "btn btn-primary", style: "padding:6px 10px;font-size:0.85rem" %>
+            <% end %>
+          </td>
+        </tr>
+      <% end %>
+    </tbody>
+  </table>
+<% else %>
+  <p>Nessun pagamento registrato per questa società.</p>
+<% end %>
+
+<h2 style="margin-top:32px;font-size:1.1rem">Tutte le fatture</h2>
 <% if @invoices.any? %>
   <table class="data">
     <thead>
-      <tr><th>Numero</th><th>Data</th><th>Importo</th><th>Stato</th><th>PDF</th></tr>
+      <tr><th>Numero</th><th>Data</th><th>Importo</th><th>Stato</th><th>Pagamento</th><th></th></tr>
     </thead>
     <tbody>
       <% @invoices.each do |inv| %>
@@ -13,7 +59,8 @@
           <td><%= inv.issued_on %></td>
           <td><%= inv.formatted_amount %></td>
           <td><%= inv.status %></td>
-          <td><%= inv.pdf.attached? ? "Sì" : "No" %></td>
+          <td><%= inv.billing_payment_id.present? ? "Sì" : "No" %></td>
+          <td><%= link_to "Modifica", edit_admin_club_billing_invoice_path(@club, inv) %></td>
         </tr>
       <% end %>
     </tbody>