feat: add disable_show_blog to UISettings

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

tests/proxy_unit_tests/test_proxy_setting_endpoints.py

@@ -0,0 +1,13 @@
+def test_ui_settings_has_disable_show_blog_field():
+    """UISettings model must include disable_show_blog."""
+    from litellm.proxy.ui_crud_endpoints.proxy_setting_endpoints import UISettings
+
+    settings = UISettings()
+    assert hasattr(settings, "disable_show_blog")
+    assert settings.disable_show_blog is False  # default
+
+
+def test_allowed_ui_settings_fields_contains_disable_show_blog():
+    from litellm.proxy.ui_crud_endpoints.proxy_setting_endpoints import ALLOWED_UI_SETTINGS_FIELDS
+
+    assert "disable_show_blog" in ALLOWED_UI_SETTINGS_FIELDS