Module Aggregator/Metadata/ResolveScriptUtils

Description

Script-aware SEO helpers extracted from per-language-resolver.ts to keep that module below the 600-line drift-guard cap (see test/unit/source-file-size.test.js).

This leaf module owns the locale-script probes and the small, pure decision helpers that depend on them:

• contentMatchesLocaleScript — does the copy carry a glyph in the locale's expected script family?
• shouldEnrichDescription — should the raw description be pushed through the localized enrichment path? (Gate 4b)
• pickResolvedTitle — pick the <title> from the candidate ladder, skipping pure-ASCII summary titles for non-Latin locales (Gate 4a).
• pickResolvedTitleCandidate — gate the H1/document-derived title candidate.
• appendRunNumberSuffix — preserved no-op for backward compatibility.

Pure, leaf module: no I/O. Imports only from the sibling SEO leaf modules (seo-budgets, resolve-helpers, text-utils).