Function run_sync_with_registry 

pub async fn run_sync_with_registry(
    config: &Config,
    connector: &str,
    full: bool,
    dry_run: bool,
    since: Option<String>,
    until: Option<String>,
    limit: Option<usize>,
    registry: &ConnectorRegistry,
    progress: Option<&dyn SyncProgressReporter>,
) -> Result<()>

Runs the ingestion pipeline with a pre-built ConnectorRegistry.

This is the unified entry point. All connectors in the registry are trait objects — built-in, Lua, and custom all go through the same path.