steer-prs

The operator loop over the steer-prs overlay (fak steer prs) — fak's read-only view that folds the pending dev->release trunk delta into PR-sized units per (fak <leaf>) ship-stamp and renders them WORST-ATTENTION-FIRST (RESIDUAL -> UNVERIFIABLE -> CLEARED). Teaches the four-step loop (run the view and read worst-first; apply the REGIME GATE — a CLEARED unit with a healthy curve is a reason to do nothing; pick the…