phase4_prep: REV must be at or after the launcher it sha-pins -- point at c237b478

phase4_prep: repin to the D-018 launcher at c237b478

phase4_prep: E-044 repin (rank-0 stop assertions; memory gate moved onto the training-only leg)

phase4_prep: repin to b6210a29 (per-rank post-train marks + readable probe failures)

phase4_prep: E-042 repin + rehearsal of the launcher's real argv and the prune guard

prep stage 4: assert on n_hub, not on the log-capped missing list

phase4_prep: pins at a813e5c7 + bounded-readback rehearsal stage / tee-prefix fix

pin 7570b7b2: forced-stop legs skip the collective validation pass; probe expectations split leg1 (skip by design) from leg2 (must run it)

pin 850729d3 (review round 3)

pin 1dd45f80 (E-037 launcher fix)

kernels: pin 91fb319f (argparse help fix)

phase4_prep: exercise the permutation-identity guard (perm_sha) through save_cursor/load_cursor

kernels: pin 063fa266 (perm-identity guard)

phase4_prep: pin f6f10076; drive the leg check from the real planner, verify the manifest against itself and the mapped bytes, resume through load_cursor

phase4_prep: pin eb1b3c00

phase4_prep: repin phase4_session

phase4_prep: pin af3b6680 (content-hashed mix_fingerprint)

phase4_prep: free CPU rehearsal of everything a GPU session can fail -- pinned fetch, creds, pointer read, planner, full sha256 of the published mix, per-leg window arithmetic, resume-equivalence at real boundaries