feat(重构): 实现新的渲染服务架构

- 新增 RenderTask

index.py

@@ -4,20 +4,22 @@ import sys
 import config
 import biz.task
 from telemetry import init_opentelemetry
-from template import load_local_template, download_template, TEMPLATES
+from services import DefaultTemplateService
 from util import api
 
 import os
 import glob
 
-load_local_template()
+# 使用新的服务架构
+template_service = DefaultTemplateService()
+template_service.load_local_templates()
 
 # Check for redownload parameter
 if 'redownload' in sys.argv:
     print("Redownloading all templates...")
-    for template_name in TEMPLATES.keys():
+    for template_name in template_service.templates.keys():
         print(f"Redownloading template: {template_name}")
-        download_template(template_name)
+        template_service.download_template(template_name)
     print("All templates redownloaded successfully!")
     sys.exit(0)
 import logging