fda9b78e9f
User-approved 2026-05-15 (read, probed via the sma_factory.myc streaming analysis, no D1/D2 change requested, proceed-by-/boss). Grounding-check PASS holds: spec bytes unchanged since the Step 7.5 dispatch (the non-load-bearing "34 vs 36 tail-app sites" wording left as attested rather than re-grounding for a count the agent ruled non-defect; the 21-fixture migration unit is exact). Three ordered iterations: it.1 loop/recur additive, it.2 guardedness checker + Diverge effect, it.3 tail-app/tail-do retirement + corpus migration.