Improve L0 extraction flow and recall robustness

modules/story-summary/vector/pipeline/chunk-builder.js

@@ -334,7 +334,7 @@ export async function syncOnMessageSwiped(chatId, lastFloor) {
 /**
  * 新消息后同步：删除 + 重建最后楼层
  */
-export async function syncOnMessageReceived(chatId, lastFloor, message, vectorConfig) {
+export async function syncOnMessageReceived(chatId, lastFloor, message, vectorConfig, onL0Complete) {
     if (!chatId || lastFloor < 0 || !message) return;
     if (!vectorConfig?.enabled) return;
 
@@ -368,11 +368,10 @@ export async function syncOnMessageReceived(chatId, lastFloor, message, vectorCo
         const userMessage = (userFloor >= 0 && chat[userFloor]?.is_user) ? chat[userFloor] : null;
 
         try {
-            await extractAndStoreAtomsForRound(lastFloor, message, userMessage);
+            await extractAndStoreAtomsForRound(lastFloor, message, userMessage, onL0Complete);
         } catch (e) {
             xbLog.warn(MODULE_ID, `Atom 提取失败: floor ${lastFloor}`, e);
         }
     }
 }
 
-