Offer Semuta after clean Ix-deck Amal discard

docs/SEMUTA_SOURCE_UPDATE_20260907.md

@@ -65,7 +65,7 @@ The explicit `semuta` development profile starts a fresh Richese roster
 with CHOAM & Richese and optionally the physical Ix deck, without
 opening public expansion starts. It interrupts **clean public
 ordinary-card, paid Box, retired Ornithopter, used Distrans, final
-Truthtrance, movement-order Sapho, battle and Ix-deck Thumper
+Truthtrance, movement-order Sapho, battle and Ix-deck Thumper/Amal
 discards**, provided the parent transaction has no competing response.
 Every seat sees the same neutral fresh-discard opportunity regardless
 of hidden Semuta custody.
@@ -81,6 +81,11 @@ Semuta claim or all-seat decline resumes the one saved Spice Blow;
 it neither injects a second worm nor replays any earlier effect.
 Thumper without the Ix deck is not a physical card in this profile.
 
+An Ix-deck Amal is already publicly discarded after halving every
+personal spice amount and resetting previous phase-opening passes.
+Semuta claim or all-seat decline restores that exact opening; no
+auction pool, phase income or other opening work runs ahead or twice.
+
 The first battle mandatory batch may contain public cards belonging
 to both combatants. Its accepted result and card custody precede
 the neutral offer; casualty allocation and winner cleanup still