Function export 

pub fn export(
    store: &Store,
    session_id: &str,
    hh_version: &str,
    detectors: Option<&Detectors>,
) -> Result<Vec<u8>>

Build a portable bundle for session_id (the trusted-data path).

hh_version is the caller’s version string (hh-core has no build-time access to the binary’s version). detectors mirrors the existing hh export/hh export --html redaction chokepoint: Some redacts the session block, every event, and every referenced blob’s content before anything is packed; None (only reachable via the interactive --no-redact confirmation) packs the session as-is.

Errors

Propagates any storage/blob-store failure reading the session.