Function resolve_url_batch 

pub async fn resolve_url_batch(
    vm: &Mutex<VmContext>,
    bytecode: &MultiEntityBytecode,
    url_client: &UrlResolverClient,
    requests: Vec<ResolverRequest>,
) -> Vec<Mutation>

Resolve a batch of URL resolver requests in parallel with deduplication, apply results to VM state, and requeue failures.

This is the single entry point for URL resolution at runtime — it owns the full lifecycle: validate, fetch, apply, requeue.