Function finish_projection_with_documents 

fn finish_projection_with_documents(
    project: ProjectInstanceId,
    generation: IndexGeneration,
    mutation: RepositoryGraphMutation,
    graphs: &[impl Borrow<SymbolGraph>],
    root: &Path,
    nodes: &[Node],
    document_facts: &BTreeMap<String, Cow<'_, MarkdownFacts>>,
    identity_admission: &GraphIdentityAdmission,
    entities: EntityProjection,
    candidates: &ProjectResolutionRegistry,
    scan_policy: &RootScanPolicy,
    control: &IndexWorkControl,
) -> Result<StagedRepositoryGraph, CliError>

Resolve staged relationships and finish one complete normalized graph batch.