fix issues

server/handlers.js

@@ -97,6 +97,14 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
   }
 
   if (aiResult.action === 'purchase') {
+    // use_recent_image 但缺 purchase_item → 从房间最近一条采购推断
+    if (aiResult.use_recent_image && (!aiResult.purchase_item || aiResult.purchase_item === 'null')) {
+      const lastPurchase = db.prepare("SELECT item FROM purchases WHERE room_id = ? AND item IS NOT NULL AND item != '' ORDER BY created_at DESC LIMIT 1").get(roomId);
+      if (lastPurchase) {
+        console.log('🛡️ use_recent_image 缺 purchase_item，推断为:', lastPurchase.item);
+        aiResult.purchase_item = lastPurchase.item;
+      }
+    }
     const item = aiResult.purchase_item;
     if (!item || item === 'null' || item === 'undefined' || item.trim().length < 2) {
       console.log('🚫 拒绝无效 purchase_item:', JSON.stringify(item));
@@ -143,11 +151,10 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
     }
     console.log('📦 purchase_item:', aiResult.purchase_item, isNew ? '(强制新建)' : purchase ? '(匹配已有)' : '(未匹配-新建)');
 
-    // is_new 为 false 但匹配失败 → 拒绝新建，提示用户
+    // is_new 未明确设为 false、且所有回退匹配均失败 → 视为新建
     if (!isNew && !purchase) {
-      storeAndBroadcastText(roomId, '小财', `未找到与「${aiResult.purchase_item}」匹配的采购记录，无法更新。请检查物品名称是否正确。`);
-      addToHistory(roomId, 'assistant', `未找到匹配记录`);
-      return;
+      console.log('📦 未匹配到已有记录，转为新建模式');
+      isNew = true;
     }
 
     let replyText = '';