Method publish_registry_layer_progress

crates/openshell-driver-vm/src/driver.rs:3564–3596

(
        &self,
        sandbox_id: &str,
        image_ref: &str,
        layer: &OciDescriptor,
        index: usize,
        total_layers: usize,
        total_bytes: i64,
    )

    }

    fn publish_registry_layer_progress(
        &self,
        sandbox_id: &str,
        image_ref: &str,
        layer: &OciDescriptor,
        index: usize,
        total_layers: usize,
        total_bytes: i64,
    ) {
        let mut metadata = HashMap::new();
        metadata.insert("layer_index".to_string(), (index + 1).to_string());
        metadata.insert("layer_total".to_string(), total_layers.to_string());
        metadata.insert("layer_digest".to_string(), layer.digest.clone());
        metadata.insert("layer_size_bytes".to_string(), layer.size.to_string());
        metadata.insert("image_ref".to_string(), image_ref.to_string());
        if total_bytes > 0 {
            metadata.insert("image_size_bytes".to_string(), total_bytes.to_string());
        }
        let mut event = platform_event(
            "vm",
            "Normal",
            "PullingLayer",
            format!(
                "Pulling layer {}/{} ({} bytes) for image \"{image_ref}\"",
                index + 1,
                total_layers,
                layer.size
            ),
        );
        event.metadata = metadata;
        attach_vm_progress_metadata(&mut event);
        self.publish_platform_event(sandbox_id.to_string(), event);
    }

    /// Emit a `Pulled` platform event with progress metadata for the CLI.
    async fn publish_pulled_event(&self, sandbox_id: &str, image_ref: &str, image_path: &Path) {