feat: apis supporting new card UI

[t1agob]

Description

This PR introduces new backend API endpoints to query service standards and service metrics. These features will be used by the frontend component to provide additional information on the services.

Type of change

• [x] New feature (non-breaking change which adds functionality)
• [ ] Fix (non-breaking change which fixes an issue)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• [x] I have performed a self-review of this change
• [x] Changes have been tested
• [ ] Changes are documented
• [x] Changes generate no new warnings
• [x] PR title follows conventional commit semantics

If this is a breaking change 👇

• [ ] I have documented the migration process
• [ ] I have implemented necessary warnings (if it can live side by side)

Acknowledgement

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