- checkpoint block refreshed for a fresh session (R30/checkpoint-before-pause): the TU-spread
test is the named FIRST action, the regen chain and gate contract are spelled out, and the
>=16 head's three open items are listed with their evidence.
- promote gate_lane.py into tools/ (it was scratchpad-only): accepts slate OR confirmed shapes,
explicit draft paths, R32 coverage assertion (refuses to report 0 as a result), dirty-tree
abort, no outer timeout, per-function propagation after.
- session: 179 commits, 177 instances banked, 5 R22 clean-fleet gates all 213/213.
Drew T