完成请求推送，但组装mes还有问题

backend/core/config.py

@@ -19,13 +19,6 @@ load_dotenv(PROJECT_ROOT / ".env")
 
 
 class Settings:
-	# --- 主模型配置 ---
-	MAIN_LLM_API_KEY = os.getenv("MAIN_LLM_API_KEY")
-	MAIN_LLM_MODEL = os.getenv("MAIN_LLM_MODEL", "gpt-3.5-turbo")
-	MAIN_LLM_BASE_URL = os.getenv("MAIN_LLM_BASE_URL", "https://api.openai.com/v1")
-	MAIN_LLM_MAX_TOKENS = int(os.getenv("MAIN_LLM_MAX_TOKENS", "4096"))
-	MAIN_LLM_STREAM = os.getenv("MAIN_LLM_STREAM", "true").lower() == "true"
-
 	# --- 路径配置 (核心修改) ---
 
 	# 强制使用计算出的项目根目录，不再依赖 .env 中的 BASE_PATH
@@ -38,7 +31,8 @@ class Settings:
 	STATE_FILE = DATA_PATH / "state.json"
 	SCHEMA_FILE = DATA_PATH / "schema.json"
 	PRESETS_FILE = DATA_PATH / "presets.json"
-	REGEX_FILE = DATA_PATH / "regex_rules.json"
+	REGEX_FILE = DATA_PATH / "regex_rules.json"  # 正则规则文件
+	SYSTEM_SETTINGS_FILE = DATA_PATH / "system_settings.json"  # 系统设置文件
 	VECTORSTORE_PATH = DATA_PATH / "vectorstore"
 
 	# --- 业务数据目录 ---
@@ -49,8 +43,11 @@ class Settings:
 	# 预设目录
 	PRESET_PATH = DATA_PATH / "preset"
 
-	# 聊天记录目录
+	# 聊天记录目录（同时存放角色卡和聊天）
 	CHAT_PATH = DATA_PATH / "chat"
+	
+	# 兼容别名：用于代码中引用
+	CHATS_PATH = CHAT_PATH
 
 	# 临时文件目录
 	TEMP_PATH = DATA_PATH / "temp"
@@ -58,8 +55,8 @@ class Settings:
 	# ComfyUI 工作流目录
 	COMFYUI_WORKFLOWS_PATH = DATA_PATH / "comfyui_workflows"
 	
-	# 角色卡目录
-	CHARACTERS_PATH = DATA_PATH / "characters"
+	# 角色卡目录（已合并到 CHAT_PATH）
+	CHARACTERS_PATH = CHAT_PATH
 	
 	# 图片资源目录
 	IMAGES_PATH = DATA_PATH / "images"
@@ -78,6 +75,10 @@ class Settings:
 		]
 		for directory in directories:
 			directory.mkdir(parents=True, exist_ok=True)
+		
+		# 确保核心数据文件的父目录存在
+		for file_path in [self.STATE_FILE, self.SCHEMA_FILE, self.PRESETS_FILE, self.REGEX_FILE, self.SYSTEM_SETTINGS_FILE]:
+			file_path.parent.mkdir(parents=True, exist_ok=True)
 
 
 settings = Settings()