Connect Semuta with native allied retention

docs/CURRENT_STATUS.md

@@ -17,6 +17,17 @@ open mode gates.
 
 ## Current checkpoint and work
 
+**Semuta with Moritani retention and Ixian substitution — 29 October.
+Prototyped / Partial.** Supported Basic independent-card battles now retain
+Moritani's allied card choice through the initial loser discard and separately
+offer unkept cards afterward. The existing Ixian path offers the loser discard
+before substitution and the winner's mandatory discard afterward. Six related
+files pass 56 cases; their native setup fixtures stage conserved battle forces
+and cards. An older Ixian fixture was repaired to complete the real battle
+outcome window; the same failures reproduced at the previous commit. Typecheck,
+lint and the production build pass. Advanced and other optional modules remain separate.
+[Scope](SEMUTA_DISCARD_CONTINUATIONS.md#native-moritani-retention-and-ixian-substitution--29-october-2026).
+
 **Semuta battle and special cards with native factions — 29 October.
 Prototyped / Partial.** Fresh Basic Richese games with independent cards now
 offer supported battle-discard batches and completed Box, Distrans, simple
@@ -684,7 +695,8 @@ isolated HTTP verification, registry login and image publication. Run 52 was
 canceled before starting; run 53 for `3ba9087` succeeded, including HTTP
 verification and image publication. Run 54 was canceled before starting and
 run 55 for `4feb418` succeeded and published its verified image. Run 56 for
-`0f8e0b4` was running at the latest check. The already-approved runner network adjustment and registry secret
+`0f8e0b4` succeeded and published its verified image. Run 57 was canceled
+before starting; run 58 for `4ee4d9f` was running at the latest check. The already-approved runner network adjustment and registry secret
 remain in use; neither needed to be recreated.
 Deployment remains unverified.
 Existing NAS deployment and its persistent storage remain untouched.

docs/SEMUTA_DISCARD_CONTINUATIONS.md

@@ -1,5 +1,20 @@
 # Semuta discard producers and continuation inventory
 
+## Native Moritani retention and Ixian substitution — 29 October 2026
+
+**Prototyped / Partial.** Fresh Basic Richese games with independent Ecaz
+Treachery Cards can offer an initial mandatory loser discard while a native
+Moritani allied-retention choice is pending. A later discard of the unkept
+played card has its own offer; neither offer includes the retained card or
+replays the battle. The existing Ixian continuation also offers the loser's
+discard before native Suboid/Cyborg substitution and the winner's mandatory
+discard after substitution. The fixtures start with native public setup and
+stage conserved battle forces and card custody, then use the actual decisions.
+Advanced, other optional modules and further reaction combinations remain
+open. The ordering is an online composition, not a publisher priority ruling.
+[Moritani cases](../tests/semuta-independent-native-retention.test.ts);
+[Ixian cases](../tests/semuta-independent-native-substitution.test.ts).
+
 ## Battle and special-card discards with native factions — 29 October 2026
 
 **Prototyped / Partial.** Fresh Basic Richese games with selected native