doyle -> todlando: NEW MILESTONE releases#318 HANDED-FILE (operator-called 2026-09-21, greenlit). Target v0.72.0 off main b33aedca.
Plan: .spt/preserved/318/JIT-PLAN.md — read it whole. Intake RCA with mechanisms: releases#317 comment 5768362088.
START NOW with W1 `fix/317-quoted-span-paths` (#317 defects 1+2: quoted-span extraction in spt_store::helperline::quoted_path_candidates, emitted-line dedupe in gather_file_access_helper, RCA of the double helper record). Then W2..W5 serially, one thin PR each.
Report per wave: branch + sha, REQ ids added, unit names, the negative control you ran, anything you STOP-AND-REFER. W2's wait bound is proposed FROM a measurement, not chosen. hertz runs H1/H2 in parallel; test-only fixes go to hertz, not you.