fix leftover stripe references in admin user detail

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

padelnomics/src/padelnomics/admin/routes.py

@@ -100,7 +100,7 @@ async def get_user_by_id(user_id: int) -> dict | None:
     """Get user by ID with subscription info."""
     return await fetch_one(
         """
-        SELECT u.*, s.plan, s.status as sub_status, s.stripe_customer_id
+        SELECT u.*, s.plan, s.status as sub_status, s.paddle_customer_id
         FROM users u
         LEFT JOIN subscriptions s ON s.user_id = u.id
         WHERE u.id = ?

padelnomics/src/padelnomics/admin/templates/user_detail.html

@@ -47,13 +47,9 @@
         <dt>Status</dt>
         <dd>{{ user.sub_status or 'N/A' }}</dd>
         
-        {% if user.stripe_customer_id %}
-        <dt>Stripe Customer</dt>
-        <dd>
-          <a href="https://dashboard.stripe.com/customers/{{ user.stripe_customer_id }}" target="_blank">
-            {{ user.stripe_customer_id }}
-          </a>
-        </dd>
+        {% if user.paddle_customer_id %}
+        <dt>Paddle Customer</dt>
+        <dd>{{ user.paddle_customer_id }}</dd>
         {% endif %}
       </dl>
     </article>