Direct 回合 panic 转成可诊断的分类失败

dispatch 层用 AssertUnwindSafe/catch_unwind 接住回合体 panic，不再落到 HostDropped 兜底
panic 负载转成直接可读文本并写进脱敏诊断与应用日志，终态改为分类失败
补齐 futures::FutureExt 导入

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

@@ -13,13 +13,16 @@
 
 use std::path::{Path, PathBuf};
 
+use futures::FutureExt;
+
 #[cfg(test)]
 use crate::agent::PendingTurn;
 use crate::agent::{
     append_direct_project_user_message_at, claim_pending_turn, complete_turn_if_reserved,
-    direct_codex_user_item_to_prompt, direct_now_ms, redact_agent_runtime_error,
-    run_direct_game_creator_turn_at_with_creation_type_and_emitter, thread_id_for_project,
-    DirectGameCreatorTurnUpdateEmitter, DirectTurnError, DirectTurnTerminal, DispatchedTurn,
+    direct_codex_user_item_to_prompt, direct_now_ms, record_direct_codex_failure,
+    redact_agent_runtime_error, run_direct_game_creator_turn_at_with_creation_type_and_emitter,
+    thread_id_for_project, DirectCodexFailureStage, DirectGameCreatorTurnUpdateEmitter,
+    DirectTurnError, DirectTurnTerminal, DispatchedTurn,
 };
 
 /// 一次放行的占用。持有它就代表这一轮还没收口。
@@ -184,6 +187,17 @@ pub(crate) fn kick_queue_dispatch(root: &Path) {
     }));
 }
 
+/// 把 panic 负载转成可读文本：`panic!("…")` 的负载是 `&str`，`panic!("{x}")` 是 `String`。
+fn direct_turn_panic_detail(payload: &(dyn std::any::Any + Send)) -> String {
+    if let Some(text) = payload.downcast_ref::<&str>() {
+        (*text).to_string()
+    } else if let Some(text) = payload.downcast_ref::<String>() {
+        text.clone()
+    } else {
+        "未知 panic 负载".to_string()
+    }
+}
+
 /// 放行之后这一段：取这一轮的调用身份 → 落盘用户条目 → 下发 → 跑整轮。
 ///
 /// 这一段的每个失败都是**回合失败**：占用与开始事件已经写好，只走占用对象的终态出口，不再回到任何
@@ -218,16 +232,38 @@ async fn run_dispatched_direct_turn(
     crate::agent::codex_app_server::emit_direct_thread_user_item(&root, &canonical_user_item);
     let capture = crate::analytics::gui::capture_writer_context();
     let emitter = DirectGameCreatorTurnUpdateEmitter::new(&root, turn_id);
-    let outcome = run_direct_game_creator_turn_at_with_creation_type_and_emitter(
-        &root,
-        &prompt,
-        dispatched.pending.creation_type.as_deref(),
-        Some(&emitter),
-        Some(canonical_user_item.clone()),
-        capture,
-        release_identity_generation,
+    // 回合体 panic 不能落到 `TurnReservation` 的 Drop 兜底：那会把这一轮收成"说不出原因"的
+    // `HostDropped`，症状正是用户看到的「本轮执行已中断，请重试」，而项目侧诊断与应用日志
+    // **一行都不会有**（真实案例：2026-10-02 连续两轮）。这里把 panic 转成分类失败，
+    // 走与正常失败同一条收口：先写脱敏诊断，再写终态。
+    let outcome = match std::panic::AssertUnwindSafe(
+        run_direct_game_creator_turn_at_with_creation_type_and_emitter(
+            &root,
+            &prompt,
+            dispatched.pending.creation_type.as_deref(),
+            Some(&emitter),
+            Some(canonical_user_item.clone()),
+            capture,
+            release_identity_generation,
+        ),
     )
-    .await;
+    .catch_unwind()
+    .await
+    {
+        Ok(result) => result,
+        Err(payload) => {
+            let failure = DirectTurnError::turn_failed(
+                DirectCodexFailureStage::CodeGeneration,
+                format!(
+                    "DirectProject 宿主任务 panic：{}",
+                    direct_turn_panic_detail(payload.as_ref())
+                ),
+            );
+            let stage = failure.turn_failure_stage();
+            let detail = record_direct_codex_failure(&root, &failure, Some(turn_id.as_str()));
+            Err(DirectTurnError::TurnFailed { stage, detail })
+        }
+    };
     match outcome {
         Ok(_) => {
             // 深层的终态出口已经在 `run_turn` 里写出 `turn.completed`；这里只补最后一条回合更新。