Function open_with_oracle_in_memory 

pub fn open_with_oracle_in_memory<O>(
    oracle: Arc<O>,
) -> Result<OracleEngine<O>, SqliteStoreError>
where
    O: OraclePort + Send + Sync + 'static,

Open an in-memory SQLite engine wired with a real oracle.

Useful for integration tests and ephemeral oracle-enabled contexts.

Errors

Returns SqliteStoreError if the connection cannot be opened or migrations fail.