feat: connect django admin smoke tests

apps/users/admin.py

@@ -1,3 +1,22 @@
 from django.contrib import admin
+from django.contrib.auth.admin import UserAdmin as DjangoUserAdmin
 
-# Register your models here.
+from .models import User
+
+
+@admin.register(User)
+class UserAdmin(DjangoUserAdmin):
+    fieldsets = DjangoUserAdmin.fieldsets + (
+        ("Cmhub", {"fields": ("payment_user_id", "status", "created_at")}),
+    )
+    readonly_fields = ("created_at",)
+    list_display = (
+        "username",
+        "email",
+        "status",
+        "is_staff",
+        "is_active",
+        "created_at",
+    )
+    list_filter = DjangoUserAdmin.list_filter + ("status",)
+    search_fields = ("username", "email", "payment_user_id")