refactor: unify core pipeline logging with cs_agent logger

core/reply_finalize_flow.py

@@ -1,12 +1,15 @@
 from __future__ import annotations
 
 import asyncio
+import logging
 from datetime import datetime
 from typing import TYPE_CHECKING
 
 from utils.metrics_tracker import emit as metrics_emit
 from core.post_ops import auto_tag, detect_discount, detect_price, record_deal_fail
 
+logger = logging.getLogger("cs_agent")
+
 if TYPE_CHECKING:
     from core.pydantic_ai_agent import AgentResponse, ConversationState, CustomerMessage, CustomerServiceAgent
 
@@ -25,7 +28,7 @@ async def finalize_ai_reply(
 
         blocked, fallback = should_block_reply(reply_text)
         if blocked:
-            print("[Agent] 敏感词拦截，使用兜底回复")
+            logger.warning("[Agent] 敏感词拦截，使用兜底回复")
             reply_text = fallback or "好的，您稍等，我帮您确认一下"
     except Exception:
         pass
@@ -88,9 +91,9 @@ async def finalize_ai_reply(
 
     if should_reply:
         state.last_reply_at = datetime.now()
-        print(f"{agent.C_REPLY}[REPLY->CUSTOMER]{agent.C_RESET} {reply_text}")
+        logger.info("[REPLY->CUSTOMER] %s", reply_text)
     else:
-        print(f"{agent.C_MUTED}[REPLY->CUSTOMER]{agent.C_RESET} <静默/不发送>")
+        logger.info("[REPLY->CUSTOMER] <静默/不发送>")
 
     agent._activity_log(
         "agent_outbound_decision",