Quantized (int8) shared encoder for the Firefox triple-encoder autofill field classifier. Vocab-pruned multilingual MiniLM (BERT arch, 4 layers, hidden 384, vocab ~12.5k). Use as a feature-extraction model and mean-pool the last_hidden_state to a 384-d per-field embedding. Weights: onnx/model_quantized.onnx (int8). Pairs with Mozilla/form-autofill-head.