By: ValentinHirschi <valentin.hirschi@gmail.com>
Observe saved reductions and record complete admission validation Add opt-in safe-boundary progress with dependency-pinned cache accounting and correct terminal-substitution completion. Preserve unobserved arithmetic and routing; test exact output parity, eviction, error and panic cleanup. Record the completed 813-witness admission census and successful large LRU application without claiming full reduction coverage.