Function refresh_library_entry 

pub fn refresh_library_entry(
    name: &str,
    source_signature: &str,
    document_json: &str,
) -> Result<(), JsValue>

UPDATE (update-components / edit-in-place commit): replace an existing entry’s document + signature and mark it DIRTY. The next history run’s ACOMP self-heal lane re-executes the document, re-snapshots, and every instance of the part follows.