新增DirectProject线程事件队列

新增单thread全局事件序列与append-only队列

新增subscriber独立cursor、consume和过期回收语义

补充并发订阅、未完成item、生命周期锚点和队头清理测试

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

@@ -20,6 +20,7 @@ mod direct_codex_user_item;
 mod direct_project_history;
 mod direct_project_turn_history;
 mod direct_runtime;
+mod direct_thread_manager;
 mod direct_tool_bridge;
 mod direct_tools_mcp;
 mod generation;
@@ -49,6 +50,7 @@ pub(crate) use direct_codex_user_item::*;
 pub(crate) use direct_project_history::*;
 pub(crate) use direct_project_turn_history::*;
 pub(crate) use direct_runtime::*;
+pub(crate) use direct_thread_manager::*;
 pub(crate) use direct_tool_bridge::*;
 pub(crate) use direct_tools_mcp::*;
 pub(crate) use generation::*;