Add basic superuser permission checks for admin

src/servala/core/models/user.py

@@ -61,3 +61,31 @@ class User(AbstractBaseUser):
 
     def normalize_username(self, username):
         return super().normalize_username(username).strip().lower()
+
+    def has_perm(self, perm, obj=None):
+        """
+        Return True if the user has the specified permission.
+        Superusers automatically have all permissions.
+        """
+        return self.is_superuser
+
+    def has_module_perms(self, app_label):
+        """
+        Return True if the user has any permissions in the given app label.
+        Superusers automatically have all permissions.
+        """
+        return self.is_superuser
+
+    def get_all_permissions(self, obj=None):
+        """
+        Return a set of permission strings that the user has.
+        Superusers have all permissions.
+        """
+        if self.is_superuser:
+            from django.contrib.auth.models import Permission
+
+            return {
+                f"{perm.content_type.app_label}.{perm.codename}"
+                for perm in Permission.objects.all()
+            }
+        return set()