refactor: 优化代码结构，合并参数设置，提升可读性

modal_deploy.py

@@ -3,33 +3,24 @@ from dotenv import dotenv_values
 from workflow_service.main import web_app
 
 fastapi_image = (
-    modal.Image
-    .debian_slim(python_version="3.11")
+    modal.Image.debian_slim(python_version="3.11")
     .pip_install_from_requirements("./workflow_service/requirements.txt")
     .env(dotenv_values(".env"))
     .add_local_python_source("workflow_service")
 )
 
 app = modal.App(image=fastapi_image, name="waas-demo")
-vol = modal.Volume.from_name("comfy_model", environment_name="dev", create_if_missing=True)
+vol = modal.Volume.from_name(
+    "comfy_model", environment_name="dev", create_if_missing=True
+)
 secret = modal.Secret.from_name("aws-s3-secret", environment_name="dev")
 
 with fastapi_image.imports():
 
     @app.function(
-        cpu=(0.125, 8),
-        memory=(128, 4096),
-        scaledown_window=1200,
-        volumes={
-            "/db": vol,
-            "/waas": modal.CloudBucketMount(
-                bucket_name="modal-media-cache",
-                secret=secret,
-                key_prefix="waas/"
-            ),
-        }
+        cpu=(0.125, 8), memory=(128, 4096), scaledown_window=1200, volumes={"/db": vol}
     )
     @modal.concurrent(max_inputs=100)
     @modal.asgi_app()
     def fastapi_webapp():
-        return web_app
+        return web_app