fix issues

server/ai/prompt.js

@@ -28,7 +28,7 @@ function buildSystemPrompt(username, isAdmin) {
   const attachmentRules = `
 ⚠️ 附件规则：
 - 图片+物品名（"这是XX的图片"）→ 只返回 purchase_item，绝对不要 is_new/quantity/unit_price
-- 引用历史图片（"上面/前面/刚刚那张""存入附件/添加到附件/关联到"）→ use_recent_image: true，**同时必须提供** purchase_item
+- 引用历史图片（"上面/前面/刚刚那张""存入附件/添加到附件/加到XX的附件/关联到"）→ use_recent_image: true，**同时必须提供** purchase_item
 - 纯图片+物品名不是新建采购，系统自动关联附件`;
 
   const prohibitionRules = `

server/handlers.js

@@ -125,6 +125,17 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
         } catch(e) { console.error('❌ 解析附件失败:', e); }
       }
     }
+    // 安全网：消息提到图片/附件但没带附件 → AI 忘设 use_recent_image，自动补
+    if (!usedRecentImage && !attachments?.length && /(图片|附件|加到|存入|关联|作为附件)/.test(originalText)) {
+      console.log('🔍 安全网: 文本提及附件但无附件，自动尝试 use_recent_image');
+      const recentMsg = db.prepare("SELECT attachments FROM messages WHERE room_id = ? AND attachments IS NOT NULL AND attachments != '' AND attachments != '[]' ORDER BY id DESC LIMIT 1").get(roomId);
+      if (recentMsg) {
+        try {
+          const files = JSON.parse(recentMsg.attachments);
+          if (files.length) { attachments = files; usedRecentImage = true; console.log('✅ 安全网引用图片:', files.length, '个'); }
+        } catch(e) {}
+      }
+    }
 
     const createdTime = normalizeTime(aiResult.created_time);
     let isNew = aiResult.is_new === true;