fix: dedupe wechat chat history and avoid duplicate outbound chat logging

core/pydantic_ai_agent.py

@@ -515,6 +515,10 @@ class CustomerServiceAgent:
             try:
                 from image.image_analyzer import image_analyzer
                 result = await image_analyzer.analyze(image_url)
+                if result.get("feasibility") == "no" or result.get("risk") == "high":
+                    return "该图风险高或不可做：不报价，建议换图或转人工评估。"
+                if not result.get("success", False):
+                    return "图片识别异常：先不报价，建议客户重发更清晰图片。"
                 p = result.get("price_suggest", 20)
                 try:
                     st = self._get_conversation_state(ctx.deps.from_id)