✨ 重构Marsho插件，优化模块导入，钩子函数与类实例化，全局变量独立为模块

nonebot_plugin_marshoai/instances.py

@@ -0,0 +1,18 @@
+# Marsho 的类实例以及全局变量
+from azure.ai.inference.aio import ChatCompletionsClient
+from azure.core.credentials import AzureKeyCredential
+from nonebot import get_driver
+
+from .config import config
+from .models import MarshoContext, MarshoTools
+
+driver = get_driver()
+
+command_start = driver.config.command_start
+model_name = config.marshoai_default_model
+context = MarshoContext()
+tools = MarshoTools()
+token = config.marshoai_token
+endpoint = config.marshoai_azure_endpoint
+client = ChatCompletionsClient(endpoint=endpoint, credential=AzureKeyCredential(token))
+target_list: list[list] = []  # 记录需保存历史上下文的列表