pub fn citekey_from_zotero_sqlite(
conn: &Connection,
item_key: &str,
) -> Result<Option<String>>Expand description
Read citekeys directly from zotero.sqlite (field name = “citationKey”).
BBT stores citekeys as item metadata fields in Zotero’s EAV schema.
This is the most reliable source — it covers 99.9% of items, even
those not yet indexed in better-bibtex.migrated.