5d716e64ab
Session summary covering nine implementation commits since handoff-26 (e032f01..0c3847a). Records the user-approved deferral of §10.3 stage 2 (CTE column-derivation harvest), flags three further 2d diagnostic-key deferrals that need user confirmation, and points the next implementer at the seams for sub-phases 2e (qualified-prefix completion + post-walk fixup) and 2g (verification sweep + final report). Test totals at handoff: 1385 passing, 0 failed, 1 ignored (+125 from the 1260 baseline at handoff-26).