Temporal ops (mamba2, predictive coding, regime dropout, ISV temporal
routing, risk budget) now run inside submit_forward_ops_main() as step
1c, captured in the cuBLAS training graph. Previously these only ran in
monitoring via reduce_current_q_stats. Also adds submit_isv_signal_update
wrapper for graph-capturable ISV signal updates.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>