Extracts [raw_ofi(8); delta_ofi(8); book_aggression(1); log_duration(1)] = 18-dim from state vector, compresses to 10-dim via cuBLAS SGEMM + bias+ReLU. Xavier init. Runs in training forward path before Mamba2 and attention, making the embedding available for temporal enrichment. 190 trainable params (18×10 + 10 bias). ~0.05ms per step. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>