fix(js): move platform user files back to static/admin/js

users.js, user-detail.js, user-edit.js, user-create.js are for
managing platform/vendor users, not shop customers. Move them
back to static/admin/js/ where other platform admin files reside.

The customers module retains customers.js which manages actual
shop customers (people who buy from vendors).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/templates/admin/user-create.html

@@ -189,5 +189,5 @@
 {% endblock %}
 
 {% block extra_scripts %}
-<script src="{{ url_for('customers_static', path='admin/js/user-create.js') }}"></script>
+<script src="{{ url_for('static', path='admin/js/user-create.js') }}"></script>
 {% endblock %}

app/templates/admin/user-detail.html

@@ -221,5 +221,5 @@
 {% endblock %}
 
 {% block extra_scripts %}
-<script src="{{ url_for('customers_static', path='admin/js/user-detail.js') }}"></script>
+<script src="{{ url_for('static', path='admin/js/user-detail.js') }}"></script>
 {% endblock %}

app/templates/admin/user-edit.html

@@ -269,5 +269,5 @@
 {% endblock %}
 
 {% block extra_scripts %}
-<script src="{{ url_for('customers_static', path='admin/js/user-edit.js') }}"></script>
+<script src="{{ url_for('static', path='admin/js/user-edit.js') }}"></script>
 {% endblock %}

app/templates/admin/users.html

@@ -240,5 +240,5 @@
 {% endblock %}
 
 {% block extra_scripts %}
-<script src="{{ url_for('customers_static', path='admin/js/users.js') }}"></script>
+<script src="{{ url_for('static', path='admin/js/users.js') }}"></script>
 {% endblock %}