Connect Emperor Nexus retention to original Ambassador purchases

components/game-table.tsx

@@ -238,6 +238,7 @@ import { MoritaniExtortion, MoritaniExtortionNotice } from './moritani-extortion
 import { AdvancedAllySeparation } from './advanced-ally-separation';
 import { NexusEmperorPayment } from './nexus-emperor-payment';
 import { NexusEmperorSellerPurchase } from './nexus-emperor-seller-purchase';
+import { NexusEmperorAmbassadorPurchase } from './nexus-emperor-ambassador-purchase';
 export function GameTable({
   game: g,
   send,
@@ -2809,6 +2810,12 @@ export function GameTable({
                                                                                                   ? 'Empty worm: Fremen Cunning'
                                                                                                   : g.decision.kind === 'nexusFremenCunningRide'
                                                                                                     ? 'Fremen Cunning remote ride'
+                                                                                                : g.decision.kind === 'nexusEmperorAmbassadorPurchase'
+                                                                                                  ? 'Richese Ambassador purchase'
+                                                                                                : g.decision.kind === 'nexusEmperorSellerPurchase'
+                                                                                                  ? 'Richese lot payment'
+                                                                                                : g.decision.kind === 'nexusEmperorPayment'
+                                                                                                  ? 'Emperor allied-purchase funding'
                                                                                                 : g
                                                                                                       .decision
                                                                                                       .kind ===
@@ -3517,6 +3524,8 @@ export function GameTable({
                 <NexusEmperorPayment game={g} send={act} busy={transportBusy || !!g.roomControl?.paused || !!g.roomControl?.closed || !!me.autopilot} />
               ) : g.decision.kind === 'nexusEmperorSellerPurchase' ? (
                 <NexusEmperorSellerPurchase game={g} act={act} busy={transportBusy || !!g.roomControl?.paused || !!g.roomControl?.closed || !!me.autopilot} />
+              ) : g.decision.kind === 'nexusEmperorAmbassadorPurchase' ? (
+                <NexusEmperorAmbassadorPurchase game={g} act={act} busy={transportBusy || !!g.roomControl?.paused || !!g.roomControl?.closed || !!me.autopilot} />
               ) : g.decision.kind === 'auctionPayment' ? (
                 <>
                   <p className="muted">

components/nexus-emperor-ambassador-purchase.tsx

@@ -0,0 +1,46 @@
+'use client';
+
+import type { Action, GameView } from '@/game/engine';
+import { Button } from './ui/button';
+
+export function NexusEmperorAmbassadorPurchase({ game, act, busy }: {
+  game: GameView;
+  act: (action: Action) => void;
+  busy: boolean;
+}) {
+  const decision = game.decision;
+  if (decision?.kind !== 'nexusEmperorAmbassadorPurchase' || decision.player !== game.me) return null;
+  const own = game.players.find(player => player.id === game.me);
+  const offer = game.nexusEmperorAmbassadorPurchase;
+  const disabled = busy || game.status !== 'playing' ||
+    game.automaticContinuationPending || !!game.phaseOpening || !!game.response ||
+    !!game.truthtrance || !!game.nexusTraitors?.pending ||
+    !!game.roomControl?.paused || !!game.roomControl?.closed || !!own?.autopilot;
+  const entitled = !!offer && offer.event === decision.event && offer.canUse && !offer.blocked;
+
+  return (
+    <section aria-label="Richese Ambassador purchase confirmation" className="notice min-w-0 space-y-3 break-words">
+      <h3>Confirm the Richese Ambassador purchase</h3>
+      <p>The original Ambassador effect purchases one Treachery Card for 3 spice.
+        Pay continues that purchase; there is no additional decline option.</p>
+      {offer && <>
+        <h4>Emperor Nexus · Secret Ally</h4>
+        <p>Personally hold the full three-spice price to keep your spice while acquiring
+          the original card. Using this option spends your Emperor Nexus Card.</p>
+        <p className="fine">Source recommendation, not a publisher ruling: apply the Emperor
+          Secret Ally purchase benefit to the original Richese Ambassador purchase, outside
+          Bidding. The bank remains unpaid; no seller, reimbursement or substitute income is
+          created. {offer.policy}</p>
+        {offer.blocked && <output className="fine block">{offer.blocked}</output>}
+      </>}
+      <Button className="game-action min-h-11 whitespace-normal" disabled={disabled}
+        onClick={() => { if (!disabled) act({ type: 'nexusEmperorAmbassadorPurchase', event: decision.event, use: false }); }}>
+        Pay original three-spice price
+      </Button>
+      {entitled && <Button className="game-action min-h-11 whitespace-normal" disabled={disabled}
+        onClick={() => { if (!disabled && entitled) act({ type: 'nexusEmperorAmbassadorPurchase', event: decision.event, use: true }); }}>
+        Use Emperor Nexus · keep 3 spice
+      </Button>}
+    </section>
+  );
+}