[Schema]: Error fetching fields

[geodem127]

Problem:

• Error fetching fields when selecting "All Models" in Schema page
• Network request fails due to undefined fieldZUID parameter

Description:

When users select "All Models" on the Schema page, the application attempts to make an API request with an undefined fieldZUID

Steps to reproduce:

1. Navigate to the Schema
2. Select "All Models"
3. Open browser Developer Tools (F12)
4. Check Network tab and observe the failed requests for fields?showDeleted=true

Screenshots:

Expected Behavior:

• Should successfully fetch model fields without errors