refactor(core): 延迟初始化知识库并优化导入结构

将LPMM知识库的初始化逻辑封装到`initialize_lpmm_knowledge`函数中，并将其调用移至`main.py`，以实现延迟加载并改善启动流程。

为了解决循环导入问题，将`component_registry`的导入移至`BaseAction.call`方法内部。

src/chat/knowledge/knowledge_lib.py

@@ -30,8 +30,13 @@ DATA_PATH = os.path.join(ROOT_PATH, "data")
 qa_manager = None
 inspire_manager = None
 
-# 检查LPMM知识库是否启用
-if global_config.lpmm_knowledge.enable:
+
+def initialize_lpmm_knowledge():
+    """初始化LPMM知识库"""
+    global qa_manager, inspire_manager
+
+    # 检查LPMM知识库是否启用
+    if global_config.lpmm_knowledge.enable:
         logger.info("正在初始化Mai-LPMM")
         logger.info("创建LLM客户端")
 
@@ -74,6 +79,6 @@ if global_config.lpmm_knowledge.enable:
         #     embed_manager,
         #     llm_client_list[global_config["embedding"]["provider"]],
         # )
-else:
+    else:
         logger.info("LPMM知识库已禁用，跳过初始化")
         # 创建空的占位符对象，避免导入错误

src/main.py

@@ -116,9 +116,9 @@ class MainSystem:
             # 停止消息重组器
             from src.plugin_system.core.event_manager import event_manager
             from src.plugin_system import EventType
+            import asyncio
             asyncio.run(event_manager.trigger_event(EventType.ON_STOP,permission_group="SYSTEM"))
             from src.utils.message_chunker import reassembler
-            import asyncio
 
             loop = asyncio.get_event_loop()
             if loop.is_running():
@@ -250,6 +250,11 @@ MoFox_Bot(第三方修改版)
         self.hippocampus_manager.initialize()
         logger.info("记忆系统初始化成功")
 
+        # 初始化LPMM知识库
+        from src.chat.knowledge.knowledge_lib import initialize_lpmm_knowledge
+        initialize_lpmm_knowledge()
+        logger.info("LPMM知识库初始化成功")
+
         # 初始化异步记忆管理器
         try:
             from src.chat.memory_system.async_memory_optimizer import async_memory_manager

src/plugin_system/base/base_action.py

@@ -8,7 +8,6 @@ from src.common.logger import get_logger
 from src.chat.message_receive.chat_stream import ChatStream
 from src.plugin_system.base.component_types import ActionActivationType, ChatMode, ActionInfo, ComponentType, ChatType
 from src.plugin_system.apis import send_api, database_api, message_api
-from src.plugin_system.core.component_registry import component_registry
 
 
 logger = get_logger("base_action")
@@ -397,6 +396,7 @@ class BaseAction(ABC):
         logger.info(f"{log_prefix} 尝试调用Action: {action_name}")
 
         try:
+            from src.plugin_system.core.component_registry import component_registry
             # 1. 从注册中心获取Action类
             action_class = component_registry.get_component_class(action_name, ComponentType.ACTION)
             if not action_class: