Function build_export_map 

pub fn build_export_map(
    crate_name: &str,
    crate_version: &str,
    findings: &[Finding],
    src_dir: &Path,
) -> CrateExportMap

Builds an export map from a dependency crate’s scan findings.

For each finding, derives the full module-qualified key from the file path and function name. Build-script findings (is_build_script: true) are excluded since they represent compile-time authority, not runtime authority.