refactor(chat): 迁移数据库操作为异步模式并修复相关调用

将同步数据库操作全面迁移为异步模式，主要涉及：
- 将 `with get_db_session()` 改为 `async with get_db_session()`
- 修复相关异步调用链，确保 await 正确传递
- 优化消息管理器、上下文管理器等核心组件的异步处理
- 移除同步的 person_id 获取方法，避免协程对象传递问题

修复 deepcopy 在 StreamContext 中的序列化问题，跳过不可序列化的 asyncio.Task 对象

删除无用的测试文件和废弃的插件清单文件

src/chat/utils/prompt.py

@@ -498,7 +498,7 @@ class Prompt:
             chat_history = ""
             if self.parameters.message_list_before_now_long:
                 recent_messages = self.parameters.message_list_before_now_long[-10:]
-                chat_history = build_readable_messages(
+                chat_history = await build_readable_messages(
                     recent_messages, replace_bot_name=True, timestamp_mode="normal", truncate=True
                 )
 
@@ -539,7 +539,7 @@ class Prompt:
             chat_history = ""
             if self.parameters.message_list_before_now_long:
                 recent_messages = self.parameters.message_list_before_now_long[-20:]
-                chat_history = build_readable_messages(
+                chat_history = await build_readable_messages(
                     recent_messages, replace_bot_name=True, timestamp_mode="normal", truncate=True
                 )
 
@@ -593,7 +593,7 @@ class Prompt:
             chat_history = ""
             if self.parameters.message_list_before_now_long:
                 recent_messages = self.parameters.message_list_before_now_long[-15:]
-                chat_history = build_readable_messages(
+                chat_history = await build_readable_messages(
                     recent_messages, replace_bot_name=True, timestamp_mode="normal", truncate=True
                 )
 
@@ -867,7 +867,7 @@ class Prompt:
 
         # 获取用户ID
         person_info_manager = get_person_info_manager()
-        person_id = person_info_manager.get_person_id_by_person_name(sender)
+        person_id = await person_info_manager.get_person_id_by_person_name(sender)
         if not person_id:
             logger.warning(f"未找到用户 {sender} 的ID，跳过信息提取")
             return f"你完全不认识{sender}，不理解ta的相关信息。"
@@ -908,7 +908,7 @@ class Prompt:
         return ""
 
     @staticmethod
-    def parse_reply_target_id(reply_to: str) -> str:
+    async def parse_reply_target_id(reply_to: str) -> str:
         """
         解析回复目标中的用户ID
 
@@ -928,7 +928,7 @@ class Prompt:
 
         # 获取用户ID
         person_info_manager = get_person_info_manager()
-        person_id = person_info_manager.get_person_id_by_person_name(sender)
+        person_id = await person_info_manager.get_person_id_by_person_name(sender)
         if person_id:
             user_id = person_info_manager.get_value(person_id, "user_id")
             return str(user_id) if user_id else ""