feat: PFC谈话模式，可选择启用，实验性功能

src/plugins/chat_module/only_process/only_message_process.py

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+from typing import Optional
+from src.common.logger import get_module_logger
+from src.plugins.chat.message import MessageRecv
+from src.plugins.chat.chat_stream import chat_manager
+from src.plugins.storage.storage import MessageStorage
+from src.plugins.config.config import global_config
+import re
+import asyncio
+from datetime import datetime
+
+logger = get_module_logger("pfc_message_processor")
+
+class MessageProcessor:
+    """消息处理器，负责处理接收到的消息并存储"""
+    
+    def __init__(self):
+        self.storage = MessageStorage()
+        
+    def _check_ban_words(self, text: str, chat, userinfo) -> bool:
+        """检查消息中是否包含过滤词"""
+        for word in global_config.ban_words:
+            if word in text:
+                logger.info(
+                    f"[{chat.group_info.group_name if chat.group_info else '私聊'}]{userinfo.user_nickname}:{text}"
+                )
+                logger.info(f"[过滤词识别]消息中含有{word}，filtered")
+                return True
+        return False
+
+    def _check_ban_regex(self, text: str, chat, userinfo) -> bool:
+        """检查消息是否匹配过滤正则表达式"""
+        for pattern in global_config.ban_msgs_regex:
+            if re.search(pattern, text):
+                logger.info(
+                    f"[{chat.group_info.group_name if chat.group_info else '私聊'}]{userinfo.user_nickname}:{text}"
+                )
+                logger.info(f"[正则表达式过滤]消息匹配到{pattern}，filtered")
+                return True
+        return False
+        
+    async def process_message(self, message: MessageRecv) -> None:
+        """处理消息并存储
+        
+        Args:
+            message: 消息对象
+        """
+        userinfo = message.message_info.user_info
+        chat = message.chat_stream
+
+        # 处理消息
+        await message.process()
+
+        # 过滤词/正则表达式过滤
+        if self._check_ban_words(message.processed_plain_text, chat, userinfo) or self._check_ban_regex(
+            message.raw_message, chat, userinfo
+        ):
+            return
+
+        # 存储消息
+        await self.storage.store_message(message, chat)
+        
+        # 打印消息信息
+        mes_name = chat.group_info.group_name if chat.group_info else "私聊"
+        # 将时间戳转换为datetime对象
+        current_time = datetime.fromtimestamp(message.message_info.time).strftime("%H:%M:%S")
+        logger.info(
+            f"[{current_time}][{mes_name}]"
+            f"{chat.user_info.user_nickname}: {message.processed_plain_text}"
+        )