fix: 规则模式摘要改为结构化生成，不再简单拼接消息原文

demo/ai/analyze.py

@@ -249,19 +249,41 @@ def generate_summary_rule(messages: list[dict]) -> dict:
     if not objections and stage == "异议处理":
         objections = ["其他异议"]
 
-    # 摘要文本：取前 5 条和后 3 条消息拼接
-    summary_parts = []
-    for m in messages[:5]:
-        sender = m["sender_display_name"] or "未知"
-        content = m["normalized_content"] or f"[{m['message_type']}]"
-        summary_parts.append(f"{sender}: {content}")
-    if len(messages) > 8:
-        summary_parts.append("...")
-    for m in messages[-3:]:
-        sender = m["sender_display_name"] or "未知"
-        content = m["normalized_content"] or f"[{m['message_type']}]"
-        summary_parts.append(f"{sender}: {content}")
-    summary = " | ".join(summary_parts)
+    # 摘要文本：根据阶段和关键词生成结构化摘要
+    customer_name = messages[0]["sender_display_name"] if messages else "客户"
+    # 提取客户需求关键词
+    needs = []
+    for kw in SYMPTOM_WORDS + ["减肥", "减脂", "瘦身", "体脂", "产后"]:
+        if kw in all_text and kw not in needs:
+            needs.append(kw)
+    needs_str = "、".join(needs[:3]) if needs else "未明确"
+
+    # 判断是否有朋友推荐
+    referred = "朋友推荐" if any(w in all_text for w in ["推荐", "小鹿", "小林", "朋友"]) else "主动咨询"
+
+    # 判断产品线
+    is_diet = any(kw in all_text for kw in ["减肥", "减脂", "瘦身", "B420", "纤益", "代餐", "体脂", "产后减肥"])
+
+    if stage == "成交":
+        # 提取成交产品
+        if "2盒" in all_text or "656" in all_text:
+            deal_detail = "2盒套餐656元" if is_diet else "3盒套餐798元"
+        elif "单盒" in all_text or "328" in all_text:
+            deal_detail = "单盒328元" if is_diet else "单盒298元"
+        elif "6盒" in all_text or "1499" in all_text:
+            deal_detail = "6盒套餐1499元"
+        else:
+            deal_detail = "套餐"
+        summary = f"客户{customer_name}（{needs_str}），{referred}，经产品介绍和案例展示后认可产品，最终成交{deal_detail}。"
+    elif stage == "异议处理":
+        top_obj = objections[0] if objections else "价格"
+        summary = f"客户{customer_name}（{needs_str}），{referred}，对产品有一定兴趣但存在{top_obj}方面的顾虑，尚未成交，需持续跟进。"
+    elif stage == "报价":
+        summary = f"客户{customer_name}（{needs_str}），{referred}，已进入报价阶段，等待客户反馈。"
+    elif stage == "需求发现":
+        summary = f"客户{customer_name}（{needs_str}），{referred}，正在了解客户具体需求和产品适配度。"
+    else:
+        summary = f"客户{customer_name}（{needs_str}），{referred}，初步建立联系，尚未深入沟通。"
 
     # 下一步建议
     next_action = "继续跟进"