修复自主任务等待测试竞态

使用待处理任务夹具替代会启动后台 drain 的高层入口

避免 planning 与 waiting-for-manifest-tasks 并发写入同一 run

定向测试连续运行五十次通过

apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/main_loop_tests.rs

@@ -317,24 +317,26 @@ fn autonomous_manifest_waiting_context_persists_without_finishing_parent_run() {
     let root = temporary.path().join("project");
     init_local_game_project_at(&root, "manifest-waiting-project", TASK)
         .expect("init manifest waiting project");
-    start_game_creator_supervisor_background_task_for_session_at(
+    let session_id = resolve_agent_conversation_session_id_at(
         &root,
+        GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID,
         None,
+        true,
+    )
+    .expect("resolve autonomous parent session");
+    let task_record = append_unique_game_creator_agent_runtime_pending_task(
+        &root,
+        GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID,
+        &session_id,
         TASK,
         RUN_ID,
         AGENT_RUNTIME_SUPERVISOR_CLI_SOURCE,
-        AGENT_RUNTIME_RUN_PROFILE_AUTONOMOUS_GAME_BUILD,
+        Some(AGENT_RUNTIME_RUN_PROFILE_AUTONOMOUS_GAME_BUILD),
+        None,
     )
     .expect("queue autonomous parent task");
     update_manifest_task_status_at(&root, "design-director", GameCreationAppTaskStatus::Running)
         .expect("start first manifest task");
-    let task_record = read_latest_game_creator_agent_runtime_task_by_run_id(
-        &root,
-        GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID,
-        RUN_ID,
-    )
-    .expect("read autonomous parent task")
-    .expect("autonomous parent task exists");
     let mut runtime = agent_runtime_state_from_task_record(&task_record);
     let mut observations = Vec::new();
     let continuation = AgentRuntimeContinuationContext::default();