Extend the existing search API request handlers to support result sorting

[JoseSzycho]

Summary

Extend the existing search API request handlers to support result sorting. This enhancement must allow users to specify sort criteria when performing full-text searches. The endpoint should:

• Accept sorting parameters alongside the search query.
• Validate requested sort fields and directions against an allowlist.
• Execute the search against Meilisearch with the appropriate sort configuration.
• Return sorted results immediately.

Important

Sorting must apply strictly to full-text search results. Field-based filtering remains out of scope for this effort and will be addressed in a future release.

Acceptance Criteria

• Users must be able to search resources.
• Users must be able to paginate results using cursor-based pagination.
• Users must be able to sort results by supported fields.
• Users must be able to specify sort direction (asc or desc).
• The API must reject unsupported or invalid sort fields with appropriate validation errors.
• Sorting must be deterministic and compatible with cursor-based pagination.