Connect Moritani Nexus losing-card retention

components/game-table.tsx

@@ -2304,7 +2304,7 @@ export function GameTable({
                                 : g.decision.kind === 'moritaniAssassinate'
                                   ? 'Moritani · Assassinate Leaders'
                                   : g.decision.kind === 'moritaniRetention'
-                                  ? 'Moritani · allied card retention'
+                                  ? g.decision.source === 'nexus' ? 'Moritani Nexus · after-loss choice' : 'Moritani · allied card retention'
                                   : g.decision.kind === 'moritaniTerror'
                                     ? 'Moritani · Terror entry reaction'
                                     : g.decision.kind === 'moritaniSetup'

components/moritani-retention.tsx

@@ -2,7 +2,6 @@
 
 import { useId, useState } from 'react';
 import type { Action, GameView } from '@/game/engine';
-import { territory } from '@/game/board';
 import { battleCardLabel } from '@/game/battle-cards';
 import { Button } from './ui/button';
 import { CardInspector, CardRules } from './card-inspector';
@@ -21,6 +20,11 @@ export function MoritaniRetention({
   const decision = game.decision;
   if (decision?.kind !== 'moritaniRetention' || decision.player !== game.me)
     return null;
+  const nexus = decision.source === 'nexus';
+  const canKeep = !nexus || !!game.nexusMoritaniRetention?.canKeep;
+  const choose = (keep: string | null): Action => nexus
+    ? { type: 'decision', event: decision.event, keep }
+    : { type: 'decision', keep };
   const me = game.players.find((player) => player.id === game.me);
   if (!me) return null;
   const cards = (me.hand ?? []).filter((card) =>
@@ -28,23 +32,42 @@ export function MoritaniRetention({
   );
   const selectedCard = cards.find((card) => card.id === selected);
   const owner = game.players.find((player) => player.id === decision.owner);
+  const location = game.combatLocations.find(place => place.id === decision.territory)?.name
+    ?? decision.territory;
   const disabled = busy || !!game.response || !!game.truthtrance;
   return (
     <section
       className="min-w-0 space-y-4"
-      aria-label="Moritani allied card retention"
+      aria-label={nexus ? 'Postbattle Moritani Nexus choice' : 'Moritani allied card retention'}
     >
-      <p>
-        You lost the battle in {territory(decision.territory).name}. Your
-        Moritani ally{owner ? `, ${owner.name},` : ''} lets you choose one
-        eligible card played in that battle to keep. Using this ability is
-        optional.
-      </p>
-      <p className="fine">
-        Declare one card, then the table may respond with Karama before you
-        retain it. If the power is canceled, all these cards are discarded.
-        Declining also discards them.
-      </p>
+      {nexus ? (
+        <>
+          <p>
+            You lost the battle in {location}. Every
+            loser with an eligible played card gets this choice. If you hold the
+            Moritani Nexus card while unallied, spend it to retain one played
+            card a winner could keep; otherwise continue.
+          </p>
+          <p className="fine">
+            Used cards with mandatory discard cannot be retained. Spending the
+            Nexus card is public; your other hand cards remain private.
+          </p>
+        </>
+      ) : (
+        <>
+          <p>
+            You lost the battle in {location}. Your
+            Moritani ally{owner ? `, ${owner.name},` : ''} lets you choose one
+            eligible card played in that battle to keep. Using this ability is
+            optional.
+          </p>
+          <p className="fine">
+            Declare one card, then the table may respond with Karama before you
+            retain it. If the power is canceled, all these cards are discarded.
+            Declining also discards them.
+          </p>
+        </>
+      )}
       <fieldset
         className="m-0 min-w-0 space-y-3 border-0 p-0"
         disabled={disabled}
@@ -85,20 +108,18 @@ export function MoritaniRetention({
       )}
       <Button
         className="min-h-11 w-full whitespace-normal"
-        disabled={disabled || !selectedCard}
-        onClick={() =>
-          selectedCard && act({ type: 'decision', keep: selectedCard.id })
-        }
+        disabled={disabled || !selectedCard || !canKeep}
+        onClick={() => selectedCard && canKeep && act(choose(selectedCard.id))}
       >
-        Declare selected card
+        {nexus ? 'Spend Moritani Nexus · retain selected card' : 'Declare selected card'}
       </Button>
       <Button
         variant="outline"
         className="min-h-11 w-full whitespace-normal"
         disabled={disabled}
-        onClick={() => act({ type: 'decision', keep: null })}
+        onClick={() => act(choose(null))}
       >
-        Decline retention
+        {nexus ? 'Continue without retention' : 'Decline retention'}
       </Button>
     </section>
   );