Sync L0 cleanup on delete and swipe

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

@@ -20,6 +20,11 @@ import { embed, getEngineFingerprint } from '../utils/embedder.js';
 import { xbLog } from '../../../../core/debug-core.js';
 import { filterText } from '../utils/text-filter.js';
 import { extractAndStoreAtomsForRound } from './state-integration.js';
+import {
+    deleteStateAtomsFromFloor,
+    deleteStateVectorsFromFloor,
+    deleteL0IndexFromFloor,
+} from '../storage/state-store.js';
 
 const MODULE_ID = 'chunk-builder';
 
@@ -367,6 +372,12 @@ export async function syncOnMessageReceived(chatId, lastFloor, message, vectorCo
         const userFloor = lastFloor - 1;
         const userMessage = (userFloor >= 0 && chat[userFloor]?.is_user) ? chat[userFloor] : null;
 
+        // L0 先删后建（与 L1 deleteChunksAtFloor 对称）
+        // regenerate / swipe 后新消息覆盖旧楼时，清理旧 atoms
+        deleteStateAtomsFromFloor(lastFloor);
+        deleteL0IndexFromFloor(lastFloor);
+        await deleteStateVectorsFromFloor(chatId, lastFloor);
+
         try {
             await extractAndStoreAtomsForRound(lastFloor, message, userMessage, onL0Complete);
         } catch (e) {
@@ -374,4 +385,3 @@ export async function syncOnMessageReceived(chatId, lastFloor, message, vectorCo
         }
     }
 }
-