Five W-* closures since v4:
- W-004 — vault E2 re-thaw (#251)
- W-015 — _slerp_toward → rotor-geodesic (#255)
- W-016 — vault probe in discovery loop (#257)
- W-011 — propagate recognition refusal (#258, paired with W-012)
- W-012 — catch InnerLoopExhaustion (#258, paired with W-011)
v5 promotes W-005 (energy-modulated surface readback) to top of queue
as the only remaining mechanical-independent item. After W-005, the
ratchet is operator-decision-bound on W-006/W-010/W-013/W-014/W-019
and L10-bound on the bigger units.
W-016's process note flags the wrong-branch pattern that hit #256
(opened on the W-015 branch). Logged for future agent briefs to
emphasize the rebase-onto-current-main step before PR creation.
9ba87e25b2