修 CI：补跑 AGC src-tauri 的 rustfmt，修正本批遗留的 8 处格式偏差

- 只做格式重排（应合成长行/应拆多行），无语义改动
- 命中 agent/direct_project_history.rs、agent/direct_runtime.rs、main.rs、project/conversation.rs、project/conversation/tests.rs
- 分别来自 bfb928295 / 2b44b6259 / 458a65cb5 / f0d5687ab 四笔提交的新增行
- 成因：pre-commit 的 lint-staged 只覆盖 *.{js,mjs,cjs,ts,tsx}，Rust 格式本地无守卫

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

@@ -560,13 +560,9 @@ mod tests {
     #[test]
     fn legacy_conversation_rows_project_into_responses_message_items() {
         let root = init_history_project("legacy-projection");
-        write_history_lines(
-            root.path(),
-            &[LEGACY_USER_ROW, LEGACY_ASSISTANT_ROW],
-        );
+        write_history_lines(root.path(), &[LEGACY_USER_ROW, LEGACY_ASSISTANT_ROW]);
 
-        let items =
-            read_direct_project_history_items_at(root.path()).expect("read legacy history");
+        let items = read_direct_project_history_items_at(root.path()).expect("read legacy history");
         assert_eq!(
             items,
             vec![
@@ -611,7 +607,11 @@ mod tests {
                 .iter()
                 .map(|item| item.get("id").and_then(Value::as_str))
                 .collect::<Vec<_>>(),
-            vec![Some("direct-codex:turn-0001:user"), Some("codex-item-2"), None]
+            vec![
+                Some("direct-codex:turn-0001:user"),
+                Some("codex-item-2"),
+                None
+            ]
         );
         assert_eq!(
             items[1],
@@ -622,7 +622,10 @@ mod tests {
                 "content": [{"type": "input_text", "text": "再加一个按钮"}],
             })
         );
-        assert_eq!(items[2]["content"][0]["text"], json!("已完成 第一行\n第二行 "));
+        assert_eq!(
+            items[2]["content"][0]["text"],
+            json!("已完成 第一行\n第二行 ")
+        );
 
         let chat = read_direct_project_chat_history_at(root.path()).expect("read mixed chat");
         assert_eq!(

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

@@ -4571,7 +4571,8 @@ mod tests {
 
     #[test]
     fn direct_project_history_shape_failure_has_explicit_non_retryable_guidance() {
-        let error = "DirectProject 历史记录类型无效：$PROJECT_ROOT/.agent/conversations/project.jsonl";
+        let error =
+            "DirectProject 历史记录类型无效：$PROJECT_ROOT/.agent/conversations/project.jsonl";
         assert!(direct_project_history_shape_failure(error));
         assert_eq!(
             direct_codex_failure_recovery_hint(DirectCodexFailureStage::CodeGeneration, error),

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

@@ -30,8 +30,8 @@ use shared_contracts::game_creation_app::{
     game_creation_app_asset_effective_category, new_game_creation_app_manifest,
     new_game_creation_app_seed_tasks, normalize_game_creation_app_asset_tags,
     validate_game_iteration_versions, GameCreationAgentArtifactTrace,
-    GameCreationAgentCapabilityDescriptor,
-    GameCreationAgentPassPlanTrace, GameCreationAgentRepairRouteTrace, GameCreationAgentRunStep,
+    GameCreationAgentCapabilityDescriptor, GameCreationAgentPassPlanTrace,
+    GameCreationAgentRepairRouteTrace, GameCreationAgentRunStep,
     GameCreationAgentRunTaskGraphTrace, GameCreationAgentRunTrace, GameCreationAgentToolCallTrace,
     GameCreationAppAgentGroup, GameCreationAppAssetManifestEntry, GameCreationAppAssetSource,
     GameCreationAppAssetSourceKind, GameCreationAppCommandRunState,

apps/ai-game-creator-shell/src-tauri/src/project/conversation.rs

@@ -958,19 +958,18 @@ fn read_persisted_local_conversation_records_unlocked(
                 if line.is_empty() {
                     continue;
                 }
-                let record = match serde_json::from_str::<PersistedLocalConversationMessageRecord>(
-                    line,
-                ) {
-                    Ok(record) => record,
-                    // 项目主对话（agent_id=None）与 DirectProject 共用同一份
-                    // `project.jsonl`：DirectProject 写的是 Codex rollout 的
-                    // `response_item` 行。通用对话链只认自己的 legacy 行，遇到对方那种
-                    // 行就跳过；其余任何坏行继续失败关闭。
-                    Err(_) if is_direct_project_history_row(line) => continue,
-                    Err(error) => {
-                        return Err(format!("解析对话记录失败：{}: {error}", path.display()))
-                    }
-                };
+                let record =
+                    match serde_json::from_str::<PersistedLocalConversationMessageRecord>(line) {
+                        Ok(record) => record,
+                        // 项目主对话（agent_id=None）与 DirectProject 共用同一份
+                        // `project.jsonl`：DirectProject 写的是 Codex rollout 的
+                        // `response_item` 行。通用对话链只认自己的 legacy 行，遇到对方那种
+                        // 行就跳过；其余任何坏行继续失败关闭。
+                        Err(_) if is_direct_project_history_row(line) => continue,
+                        Err(error) => {
+                            return Err(format!("解析对话记录失败：{}: {error}", path.display()))
+                        }
+                    };
                 records.push(record);
             }
         }

apps/ai-game-creator-shell/src-tauri/src/project/conversation/tests.rs

@@ -293,7 +293,10 @@ fn mixed_project_history_rows_stay_readable_from_both_sides() {
 
     let history = std::fs::read_to_string(project_conversation_path(&root)).expect("read history");
     assert_eq!(history.lines().count(), 3, "{history}");
-    assert!(history.contains("模式切换后由通用写入器补写的回复"), "{history}");
+    assert!(
+        history.contains("模式切换后由通用写入器补写的回复"),
+        "{history}"
+    );
 
     // 通用对话链只读自己的 legacy 行，跳过 DirectProject 的行。
     let conversation = read_local_conversation_at(&root, None).expect("read project conversation");
@@ -332,7 +335,10 @@ fn project_history_keeps_accepting_legacy_rows_while_no_direct_project_row_exist
     append_project_message(&root, "非 direct 模式的项目对话回复").expect("append legacy row");
     let conversation = read_local_conversation_at(&root, None).expect("read legacy conversation");
     assert_eq!(conversation.messages.len(), 1);
-    assert_eq!(conversation.messages[0].content, "非 direct 模式的项目对话回复");
+    assert_eq!(
+        conversation.messages[0].content,
+        "非 direct 模式的项目对话回复"
+    );
 
     std::fs::remove_dir_all(root).ok();
 }