Result of a SendToAudience call. Mirrors the per-message
MessageResult[] from SendMessages and additionally surfaces the
audience-resolution metadata so the caller can render an "Audience
Summary" panel (per mockup 21) without re-running the resolve.
Result of a
SendToAudiencecall. Mirrors the per-messageMessageResult[]fromSendMessagesand additionally surfaces the audience-resolution metadata so the caller can render an "Audience Summary" panel (per mockup 21) without re-running the resolve.