Categories with uppercase codes not displayed in Data Quality Insights dashboard

[hsmusz]

Akeneo PIM version: 7.0 CE running on akeneo/pim-php-dev:8.1 docker image.

Summary:
Only categories whose code is entirely lowercase are displayed in the categories section of the Data Quality Insights Dashboard. Categories with uppercase or mixed-case codes are missing from the dashboard, even though they are returned by the akeneo_data_quality_insights_dashboard_widget_categories endpoint.

Steps to Reproduce

• Create several categories with codes using a mix of uppercase and lowercase letters.
• Go to the Data Quality Insights Dashboard.
• Open the category selection dropdown.
• Select all created categories

Expected Behavior
All categories, regardless of whether their codes are lowercase, uppercase, or mixed case, should be displayed in the categories section of the Data Quality Insights Dashboard.

Actual Behavior
Only categories with all-lowercase codes are displayed. Categories with uppercase or mixed-case codes are not shown, despite being returned by the API endpoint.

Thank you for investigating this issue!