修复自主构建合同测试的执行锁夹具

避免调度前预占 code-prototype 执行 lane
等待真实子任务 run 的持久终态与 manifest 投影

apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/autonomous_completion_contract_tests.rs

@@ -1084,10 +1084,6 @@ async fn game_chat_pure_continue_inherits_failed_root_semantics_and_manifest_pro
         "继续完成继承的现有游戏目标",
     )
     .expect("persist continued root Supervisor decision");
-    let _code_prototype_lane =
-        try_acquire_game_creator_agent_runtime_task_lock(&root, "code-prototype")
-            .expect("acquire continued main-agent execution lane")
-            .expect("continued main-agent execution lane is free");
     let scheduled = schedule_autonomous_game_build_ready_tasks_at(
         &root,
         GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID,
@@ -1103,7 +1099,7 @@ async fn game_chat_pure_continue_inherits_failed_root_semantics_and_manifest_pro
     let _ = crate::tests::wait_for_agent_runtime_manifest_projection_async(
         &root,
         "code-prototype",
-        &scheduled[0].state.run_id,
+        &autonomous_manifest_ready_task_run_id(&continuation.run_id, "code-prototype"),
         "failed",
         "budget-exhausted",
         GameCreationAppTaskStatus::Failed,