feat(affinity-flow): 重构消息处理以使用StreamContext对象

重构AFC消息处理系统，将基于字典的消息数据传递改为直接使用StreamContext对象。主要变更包括：

- 修改AFCManager的process_message方法为process_stream_context，直接接收StreamContext对象
- 在chatter中重构消息处理逻辑，直接从StreamContext获取未读和历史消息
- 移除批量消息处理功能，改为单次StreamContext处理
- 在message_manager中简化消息处理流程，直接传递StreamContext对象
- 添加未读消息清理机制，防止异常情况下消息一直未读

同时优化兴趣度评分系统的参数：
- 调整回复阈值从0.55到0.56
- 增加最大不回复次数从15到20
- 提升每次不回复的概率增加从0.01到0.02
- 优化提及奖励从3.0降到1.0
- 调整回复后的不回复计数减少从1到3

BREAKING CHANGE: AFCManager的process_message方法已重命名为process_stream_context，参数从message_data改为context对象

src/common/data_models/message_data_model.py

@@ -1,36 +0,0 @@
-from typing import Optional, TYPE_CHECKING
-from dataclasses import dataclass, field
-
-from . import BaseDataModel
-
-if TYPE_CHECKING:
-    from .database_data_model import DatabaseMessages
-
-
-@dataclass
-class MessageAndActionModel(BaseDataModel):
-    chat_id: str = field(default_factory=str)
-    time: float = field(default_factory=float)
-    user_id: str = field(default_factory=str)
-    user_platform: str = field(default_factory=str)
-    user_nickname: str = field(default_factory=str)
-    user_cardname: Optional[str] = None
-    processed_plain_text: Optional[str] = None
-    display_message: Optional[str] = None
-    chat_info_platform: str = field(default_factory=str)
-    is_action_record: bool = field(default=False)
-    action_name: Optional[str] = None
-
-    @classmethod
-    def from_DatabaseMessages(cls, message: "DatabaseMessages"):
-        return cls(
-            chat_id=message.chat_id,
-            time=message.time,
-            user_id=message.user_info.user_id,
-            user_platform=message.user_info.platform,
-            user_nickname=message.user_info.user_nickname,
-            user_cardname=message.user_info.user_cardname,
-            processed_plain_text=message.processed_plain_text,
-            display_message=message.display_message,
-            chat_info_platform=message.chat_info.platform,
-        )

src/common/data_models/message_manager_data_model.py

@@ -49,11 +49,11 @@ class StreamContext(BaseDataModel):
                 self.unread_messages.remove(msg)
                 break
 
-    def get_context_messages(self, limit: int = 20) -> List["DatabaseMessages"]:
-        """获取上下文消息（历史消息+未读消息）"""
+    def get_history_messages(self, limit: int = 20) -> List["DatabaseMessages"]:
+        """获取历史消息"""
         # 优先返回最近的历史消息和所有未读消息
         recent_history = self.history_messages[-limit:] if len(self.history_messages) > limit else self.history_messages
-        return recent_history + self.unread_messages
+        return recent_history
 
 
 @dataclass