Function batchPreviewFormats

batchPreviewFormats(
    formats: Format[],
    creativeAgentClient: SingleAgentClient,
    options?: BatchPreviewOptions,
): Promise<PreviewResult[]>
Generate batch previews for formats with format_card manifests

Formats with format_card fields will have their cards rendered via the creative agent. Formats without format_card will be returned with no preview.
Parameters
- formats: Format[]
  Array of formats to preview
- creativeAgentClient: SingleAgentClient
  ADCP client configured for creative agent
- options: BatchPreviewOptions = {}
  Preview generation options
Returns Promise<PreviewResult[]>
Array of preview results matching input formats
Example
```
const creativeAgent = new SingleAgentClient({
  id: 'creative',
  name: 'Creative Agent',
  agent_uri: 'https://creative.adcontextprotocol.org/mcp',
  protocol: 'mcp'
});

const previews = await batchPreviewFormats(formats, creativeAgent);
previews.forEach(p => {
  if (p.previewUrl) {
    console.log(`${(p.item as Format).name}: ${p.previewUrl}`);
  }
});
```
- Defined in src/lib/utils/preview-utils.ts:238