What's fixed
Noise suppression: load_sentence_transformer and SentenceTransformerEmbedder now call hf_logging.disable_progress_bar() alongside set_verbosity_error() and TQDM_DISABLE=1. The TQDM_DISABLE environment variable alone doesn't suppress progress bars from transformers because it has its own internal _tqdm_active gate — this patch closes that gap, particularly in multi-process worker environments.