Extend Basic Semuta poison continuation

docs/SEMUTA_DISCARD_CONTINUATIONS.md

@@ -1,5 +1,15 @@
 # Semuta discard producers and continuation inventory
 
+## Residual Poison in Basic independent cards — 28 October 2026
+
+**Prototyped / Partial.** In the existing Richese/classic independent-card
+preview, a clean pre-leader Residual Poison death now offers its public
+discard to Semuta. The selected leader's death is committed once before the
+offer; claiming or passing resumes the original preparation, retaining the
+opponent's readiness and reopening the Poison player's readiness. Existing
+inspection, competing-parent and module guards remain. The ordering is a
+provisional digital interpretation; other profiles remain separately scoped.
+
 ## Richese specials and simple Truthtrance in Basic independent cards — 28 October 2026
 
 **Prototyped / Partial.** In the existing Richese/classic independent-card