test(adventure): await exported camp receipt before shutdown

src/nativeTest/java/games/dmg/fantasystick/AdventureQuestNativeTest.java

@@ -393,6 +393,7 @@ class AdventureQuestNativeTest {
             await(restarted,()->!fishing.trophies(carrier).isEmpty());
             assertEquals(finalEnemy.toString(),fishing.trophies(carrier).getFirst().audit()
                 .get("final_enemy_id"));
+            awaitCampExport(restarted,data,receiptId);
             restarted.plugin.setEnabled(false);
         }
         var earned=exportedCampEvents(data).stream().filter(event->event.get("type").getAsString()
@@ -779,6 +780,22 @@ class AdventureQuestNativeTest {
         }
     }
 
+    private static void awaitCampExport(FantasyStickLifecycleNativeTest.Fixture fixture,Path root,
+                                        UUID receipt)throws Exception{
+        for(int attempt=0;attempt<200;attempt++){
+            if(hasExportedCampReceipt(root,receipt))return;
+            var task=fixture.tasks.poll(25,java.util.concurrent.TimeUnit.MILLISECONDS);
+            if(task!=null)task.run();
+        }
+        assertTrue(hasExportedCampReceipt(root,receipt),
+            "Committed camp receipt "+receipt+" did not reach exported JSONL before shutdown");
+    }
+    private static boolean hasExportedCampReceipt(Path root,UUID receipt){
+        try{return exportedCampEvents(root).stream().anyMatch(event->event.get("type").getAsString()
+            .endsWith("adventure.trophy_earned")&&event.getAsJsonObject("data")
+            .get("receipt_id").getAsString().equals(receipt.toString()));}
+        catch(Exception transientExport){return false;}
+    }
     private static List<com.google.gson.JsonObject> exportedCampEvents(Path root)throws Exception{
         try(var files=java.nio.file.Files.walk(root.resolve("events"))){
             return files.filter(path->path.toString().endsWith(".jsonl"))