final tweaks.

templates/admin_user_edit.html

@@ -26,11 +26,15 @@
     <div>
       <label for="is_admin" class="block text-sm font-medium text-slate-700">Admin</label>
       <div class="mt-1 flex items-center">
-        <input type="checkbox" id="is_admin" name="is_admin" 
+        <input type="checkbox" id="is_admin" name="is_admin"
                {% if user.is_admin %}checked{% endif %}
+               {% if not user.is_admin %}disabled{% endif %}
                class="h-4 w-4 text-blue-600 focus:ring-blue-500 border-slate-300 rounded">
         <label for="is_admin" class="ml-2 block text-sm text-slate-700">Check to make this user an admin</label>
       </div>
+      {% if not user.is_admin %}
+      <p class="mt-1 text-sm text-slate-500">Admin status can only be set during user creation.</p>
+      {% endif %}
     </div>
     
     <div>
@@ -62,7 +66,6 @@ document.getElementById('userForm').addEventListener('submit', function(e) {
   const userData = {
     uid: '{{ user.uid }}',
     enabled: formData.get('enabled') === 'on',
-    is_admin: formData.get('is_admin') === 'on',
     case_email: formData.get('case_email')
   };