Make mixed Homeworld HTTP fixture deterministic

tests/richese-homeworld-marker-mixed-http.test.ts

@@ -46,7 +46,6 @@ void test('authenticated mixed transfer moves a concealed marker and physical vi
   for (const seat of seats) await act(seat.cookie, { type: 'ready' });
   await act(hostSeat.cookie, { type: 'start' });
 
-  let firstMarkerPlaced = false;
   async function advance(until: (ownerView: GameView) => boolean) {
     for (let count = 0; count < 800; count++) {
       const currentOwner = await read(ownerSeat.cookie);
@@ -90,14 +89,16 @@ void test('authenticated mixed transfer moves a concealed marker and physical vi
       }
       assert.ok(proposed, `No native continuation at ${currentOwner.status}/${currentOwner.phase}/${currentOwner.decision?.kind ?? 'no decision'}.`);
       if (view.response && !view.response.passed.includes(view.me)) proposed.action = { type: 'passResponse' };
-      // Keep the actual Atreides shipment affordable and avoid extra foreign
-      // arrivals to the temporary marker World; all passes/skips are legal.
+      // Keep the actual Atreides shipment affordable and reserve every
+      // Richese movement turn for the explicit shipments below. Richese may
+      // act before Atreides empties Caladan; letting its bot ship on that
+      // earlier turn would add unrelated visitors to the test's source pool.
       else if ((proposed.actor === hostSeat.id || proposed.actor === ownerSeat.id) && proposed.action.type === 'bid') proposed.action = { type: 'passBid' };
       else if ((proposed.actor === hostSeat.id || proposed.actor === ownerSeat.id) && proposed.action.type === 'richeseBid')
         proposed.action = { type: 'richeseBid', event: proposed.action.event, amount: 0, allyPayment: 0 };
       else if (view.phase === 5 && view.active === proposed.actor && !view.response && !view.decision &&
                !view.truthtrance && !view.phaseOpening &&
-               (proposed.actor === guildSeat.id || proposed.actor === ownerSeat.id && firstMarkerPlaced))
+               (proposed.actor === guildSeat.id || proposed.actor === ownerSeat.id))
         proposed.action = { type: 'endMovement' };
       await act(proposed.cookie, proposed.action);
     }
@@ -108,12 +109,16 @@ void test('authenticated mixed transfer moves a concealed marker and physical vi
     !own.players.find(player => player.id === own.me)!.shipped &&
     own.players.find(player => player.id === hostSeat.id)!.reserves === 0 &&
     !!own.homeworldShipment && !own.homeworldShipment.blocked && !!own.richeseNoField?.canShip);
+  const beforePhysical = first.homeworlds?.worlds?.find(world => world.id === 'homeworld:atreides')?.forces[first.me];
+  assert.equal(beforePhysical?.normal ?? 0, 0, 'No unrelated Richese visit precedes the scripted shipment.');
+  assert.equal(beforePhysical?.elite ?? 0, 0, 'No unrelated Richese elite visit precedes the scripted shipment.');
   const physical = homeworldShipmentChoice(first, 'homeworld:atreides',
     { 'homeworld:richese': { normal: 2, elite: 0 } });
   assert.ok(physical.action, physical.blocked ?? 'The physical shipment is available.');
   await act(ownerSeat.cookie, physical.action);
-  firstMarkerPlaced = true; // Keep later owner turns for the test's explicit shipments.
   const firstLanded = await advance(own => own.phase === 5 && own.players.find(player => player.id === own.me)?.shipped === true);
+  assert.deepEqual(firstLanded.homeworlds?.worlds?.find(world => world.id === 'homeworld:atreides')?.forces[firstLanded.me],
+    { normal: 2, elite: 0 }, 'The scripted shipment adds exactly two visitors.');
   const physicalTurn = firstLanded.turn;
   const markerTurn = await advance(own => own.status === 'playing' && own.turn > physicalTurn && own.phase === 5 &&
     own.active === own.me && !own.players.find(player => player.id === own.me)!.shipped &&