Add Items to Queue

Adds traces, spans, or threads to an annotation queue for review. Items are validated to ensure they match the queue type and exist in your project. **Queue Type Matching:** - TRACE queues: Only accept `traceUuids` - SPAN queues: Only accept `spanUuids` - THREAD queues: Only accept `threadIds` - Providing items that don't match the queue type will result in an error **Validation:** - All provided UUIDs/IDs must exist in your project - Items already in the queue are automatically skipped (duplicates filtered) - Returns only the IDs of newly created queue items **Supported Queue Types:** TRACE, SPAN, THREAD (GOLDEN and TEST_RUN not yet supported)