refactor: 移除旧的comfyui_client模块，重构API路由以使用新的comfy_workflow和queue_manager，提升代码结构和可维护性

workflow_service/config.py

@@ -6,6 +6,7 @@ from typing import List
 
 class ComfyUIServer(BaseModel):
     """定义单个ComfyUI服务器的配置模型。"""
+
     http_url: str
     ws_url: str
     input_dir: str
@@ -16,10 +17,13 @@ class Settings(BaseSettings):
     """
     应用配置类，通过.env文件加载环境变量。
     """
-    model_config = SettingsConfigDict(env_file='.env', env_file_encoding='utf-8')
+
+    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8")
 
     # [核心改动] 使用JSON字符串来定义一个服务器列表
-    COMFYUI_SERVERS_JSON: str = '[{"http_url": "http://127.0.0.1:8188", "ws_url": "ws://127.0.0.1:8188/ws", "input_dir": "/comfyui/input", "output_dir": "/comfyui/output"}]'
+    COMFYUI_SERVERS_JSON: str = (
+        '[{"http_url": "http://127.0.0.1:8188", "ws_url": "ws://127.0.0.1:8188/ws", "input_dir": "/comfyui/input", "output_dir": "/comfyui/output"}]'
+    )
 
     DB_FILE: str = "/db/workflows_service.sqlite"
     # S3 和 AWS 配置保持不变
@@ -45,4 +49,4 @@ class Settings(BaseSettings):
             raise e
 
 
-settings = Settings()
+settings = Settings()