Function expandSectionArtifacts

expandSectionArtifacts(
    section: ArtifactSection,
    available: Set<string>,
    consumed: Set<string>,
): string[]
Expand an artifacts entry from ArtifactSection into a list of concrete artifact paths. Exact paths are kept as-is; directory prefixes ending in / expand to every remaining .md under that directory (lexical order), excluding files already claimed by higher-priority sections.
Parameters
- section: ArtifactSection
  Canonical section descriptor from ARTIFACT_SECTIONS
- available: Set<string>
  Set of every known artifact path (run-relative)
- consumed: Set<string>
  Mutable set of paths already claimed by earlier sections
Returns string[]
Ordered list of artifact paths that belong to this section
- Defined in aggregator/analysis-aggregator.ts:174