feat: Add support for ash calculation `field?: false` option

[chazwatkins]

Code of Conduct

• I agree to follow this project's Code of Conduct

AI Policy

• I agree to follow this project's AI Policy, or I agree that AI was not used while creating this issue.

Is your feature request related to a problem? Please describe.

Dependency for releasing ash-project/ash#2242

Describe the solution you'd like

When a calculation has field?: false

• Exclude from response schema
• Include as filter option when filterable?: true
• Include as sort option when sortable?: true

Describe alternatives you've considered

No response

Additional context

No response