a74fbb08a6
When receiving <unavailable type='view_once'/>, attempt to request the actual media content from the primary phone via PDO (Peer Data Operation / PLACEHOLDER_MESSAGE_RESEND). If the phone responds, the full media (url, mediaKey, directPath) arrives via messages.upsert, allowing consumers to display the image. Falls back to placeholder if PDO fails or phone doesn't respond. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>