Add admin Sales report page

app.py

@@ -781,6 +781,19 @@ def admin_dashboard():
     return render_template('admin/dashboard.html', requests=requests, statuses=STATUS_LABELS, current_status=status_filter, refresh_seconds=get_refresh_seconds())
 
 
+@app.route('/admin/sales')
+def admin_sales():
+    """
+    Sales report: delivered requests only.
+    Shows customer email, name, chosen version, and Square payment reference.
+    """
+    redir = require_admin()
+    if redir:
+        return redir
+    sales = list_requests(status='delivered')
+    return render_template('admin/sales.html', sales=sales, statuses=STATUS_LABELS)
+
+
 @app.route('/admin/request/<int:rid>', methods=['GET', 'POST'])
 def admin_request(rid):
     """