Queue consumed on dispatch; engine chain hardened; queued planes unsellable (ISS-088)

lib/game/actions.ts

@@ -153,6 +153,12 @@ export async function flyPlane(inst: GameDb, planeId: string, destIcao: string):
   const sim = (await inst.db.select().from(schema.simState))[0];
   if (!sim) throw new Error('sim_state row missing');
 
+  // v0.46.0 (ISS-088): flying to the FIRST queued leg consumes it — otherwise the engine would
+  // chain a zero-distance self-hop on landing (queue[0] === the airport just reached). Skip-ahead
+  // to a non-first queued dest is an explicit override: the queue stays intact, FIFO preserved.
+  const queue = parseIcaoQueue(plane.queue);
+  if (queue.length > 0 && queue[0] === destIcao) queue.shift();
+
   await inst.db.update(schema.planes)
     .set({
       status: 'flying',
@@ -161,6 +167,7 @@ export async function flyPlane(inst: GameDb, planeId: string, destIcao: string):
       lat: origin.lat,
       lon: origin.lon,
       fuel: target, // ISS-082: the post-top-up level (unchanged when no top-up was needed)
+      queue: JSON.stringify(queue),
     })
     .where(eq(schema.planes.id, planeId));
   if (cost > 0) {
@@ -340,6 +347,11 @@ export async function sellPlane(inst: GameDb, planeId: string): Promise<{ payout
     throw new GameActionError(409, `cannot sell a plane carrying cargo`);
   }
 
+  // v0.46.0 (ISS-088): selling a plane with queued legs would silently drop them — force an explicit cancel first.
+  if (parseIcaoQueue(plane.queue).length > 0) {
+    throw new GameActionError(409, 'the plane has queued legs — cancel queued legs first');
+  }
+
   const all = await inst.db.select().from(schema.planes);
   if (all.length <= 1) throw new GameActionError(409, 'cannot sell the last remaining plane');