初始化 Direct 活动回合更新时间

让活动回合快照在受理时即具备更新时间
保持面板与重连读取同一份完整快照

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

@@ -319,6 +319,10 @@ impl DirectTaonierActiveInvocationGuard {
                 });
             }
             None => {
+                let started_at = SystemTime::now()
+                    .duration_since(UNIX_EPOCH)
+                    .map(|duration| duration.as_millis() as u64)
+                    .unwrap_or_default();
                 active.insert(
                     root.clone(),
                     DirectTaonierActiveInvocation {
@@ -327,13 +331,10 @@ impl DirectTaonierActiveInvocationGuard {
                             .file_name()
                             .and_then(|name| name.to_str())
                             .map(str::to_string),
-                        started_at: SystemTime::now()
-                            .duration_since(UNIX_EPOCH)
-                            .map(|duration| duration.as_millis() as u64)
-                            .unwrap_or_default(),
+                        started_at,
                         status: "accepted".to_string(),
                         activity: Some("request-accepted".to_string()),
-                        updated_at: 0,
+                        updated_at: started_at,
                         sequence: 0,
                     },
                 );