feat: Add open_to_public to filter and order of endpoint relay API

[agatha197]

follows #2805
This PR adds open_to_public to filter and order of endpoint relay API.

Checklist:

• Milestone metadata specifying the target backport version
• Mention to the original issue
• Installer updates including:
  • Fixtures for db schema changes
  • New mandatory config options
• Update of end-to-end CLI integration tests in ai.backend.test
• API server-client counterparts (e.g., manager API -> client SDK)
• Test case(s) to:
  • Demonstrate the difference of before/after
  • Demonstrate the flow of abstract/conceptual models with a concrete implementation
• Documentation
  • Contents in the docs directory
  • docstrings in public interfaces and type annotations

[agatha197]

• feat: Add open_to_public to filter and order of endpoint relay API #2954 👈
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

Join @agatha197 and the rest of your teammates on Graphite