Aggiunge pagamento con bonifico e importo concordato per società.

Il piano si attiva solo dopo la conferma admin; Stripe resta a listino se non c'è un prezzo commerciale.

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

backend/app/views/shared/_pending_bank_transfer.html.erb

@@ -0,0 +1,15 @@
+<%# locals: (order:) %>
+<% return if order.blank? %>
+<div class="card" style="margin-top:16px;border-color:#3d3520;background:#1a1810">
+  <p style="margin:0 0 8px;color:#ddd">
+    <strong><%= t("billing.bank_transfer.pending_title") %></strong>
+    <%= raw t("billing.bank_transfer.pending_body_html",
+          plan: order.plan.name,
+          price: order.price_label,
+          causal: order.payment_causal) %>
+  </p>
+  <p style="margin:0;color:#aaa;font-size:0.9rem">
+    <%= raw t("billing.bank_transfer.pending_proof_html",
+          email_link: mail_to(MatchLiveTv.bank_transfer_proof_email, MatchLiveTv.bank_transfer_proof_email)) %>
+  </p>
+</div>