Wire outcome CE backward → grad_W/b → Adam → grad_h_accumulate. Add PopArt, spectral, Q-bias, per-branch LR, outcome metrics to diag JSONL for training validation. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Wire outcome CE backward → grad_W/b → Adam → grad_h_accumulate. Add PopArt, spectral, Q-bias, per-branch LR, outcome metrics to diag JSONL for training validation. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>