Function chooseBestDescription

chooseBestDescription(
    ogDescription: string,
    metaDescription: string,
    jsonLdDescription: string,
): string
Choose the richest available description from three candidate sources, preferring whichever is longest but non-empty. Falls back in order:
1. og:description (often the richest, emitted by the aggregator)
2. <meta name="description"> (truncated legacy copy)
3. JSON-LD description (last resort)
Implements seo-metadata-contract.md §3.h.
Parameters
- ogDescription: string
- metaDescription: string
- jsonLdDescription: string
Returns string
- Defined in scripts/generate-news-indexes/helpers/frontmatter.ts:62