Function event_documents_to_graph 

pub fn event_documents_to_graph(
    inputs: &[(&RepoId, &str, &str, &EventDocument)],
) -> EventGraphFacts

Converts event documents into deterministic, ambiguity-safe graph facts.

Source observations without a namespace link to a declared broker/channel only when exactly one namespace candidate exists. Generic source APIs link to a broker-specific declaration only when the channel has one unambiguous declaration across the workspace.