Enable Kull during Basic battle preparation

docs/CHOAM_KULL_DESIGN.md

@@ -57,6 +57,35 @@ reaches an actual worm Nexus but does not claim a Kull interruption there.
 
 Source audit: 2026-09-06; opt-in preview contract updated 30 September 2026. This is an engineering and product-policy record, not a rules-completion claim. The source audit in [CHOAM_REMAINING_RULES.md](CHOAM_REMAINING_RULES.md) remains applicable. The user-approved counter and BG choices supersede the original proposal; publisher-source uncertainty and full expansion gates remain.
 
+## Basic Kull and Semuta during battle preparation — 28 October 2026
+
+**Prototyped / Partial.** In the supported native Basic CHOAM/Richese printed
+Kull and Semuta preview, CHOAM may use a held Kull against a printed Karama
+attempt to cancel a declared Voice or Prescience. This covers a clean original
+battle before plans are sealed, with no live Truthtrance promise or competing
+parent. It retains the actual battle event, combatants, preparation, submitted
+readiness and the existing response ownership; no leader, plan or result is
+created by the interruption.
+
+If CHOAM declines, the original Karama continues through its native payment
+and prevention path. If CHOAM declares Kull and the other players allow it,
+the exact Kull is discarded and offered through the neutral Semuta response;
+claim or pass leaves the attempted Karama held and the original battle power
+in place. A different legal Karama may instead counter Kull: its physical
+discard receives the Semuta opportunity before the original attempt resumes.
+The original attempt's own eventual discard remains a separate native event.
+Semuta cannot recover its holder's own discard, and no cost is paid or
+battle power settled twice.
+
+The Kull frame binds the original Karama and source response; the new
+battle-bound continuation also preserves the battle and its original controls
+while the fresh discard is pending. Older non-battle receipts retain their
+existing signature and behavior. This priority and the distinct counter are
+provisional digital ordering, not a publisher ruling for the combination.
+Advanced, battle promises, sealed plans, optional modules and other nested
+parents remain outside this particular admission. It does not certify complete
+rules, full-game or deployed behavior.
+
 ## Basic Richese and Kull/Semuta — 27 October 2026
 
 **Prototyped / Partial.** The fresh Basic printed-Kull opt-in includes