refactor(chat): 重构关系系统并优化消息打断处理机制

- 移除独立的RelationshipConfig，将关系追踪参数整合到AffinityFlowConfig
- 实现消息打断后立即重新处理流程，提升交互响应性
- 优化关系追踪系统，添加概率筛选和超时保护机制
- 改进机器人自引用处理，确保消息内容正确显示
- 增强用户信息提取逻辑，兼容多种消息格式
- 添加异步后台任务处理，避免阻塞主回复流程
- 调整兴趣评分阈值和权重参数，优化消息匹配精度

src/config/config.py

@@ -37,7 +37,6 @@ from src.config.official_configs import (
     PersonalityConfig,
     PlanningSystemConfig,
     ProactiveThinkingConfig,
-    RelationshipConfig,
     ResponsePostProcessConfig,
     ResponseSplitterConfig,
     SleepSystemConfig,
@@ -392,7 +391,6 @@ class Config(ValidatedConfigBase):
     database: DatabaseConfig = Field(..., description="数据库配置")
     bot: BotConfig = Field(..., description="机器人基本配置")
     personality: PersonalityConfig = Field(..., description="个性配置")
-    relationship: RelationshipConfig = Field(..., description="关系配置")
     chat: ChatConfig = Field(..., description="聊天配置")
     message_receive: MessageReceiveConfig = Field(..., description="消息接收配置")
     normal_chat: NormalChatConfig = Field(..., description="普通聊天配置")