Refactor and translate comments and docstrings in utility modules to English for better clarity and maintainability. Update Gunicorn and application startup messages for consistency in language. Enhance documentation with English translations for better accessibility.

backend_api_python/app/utils/http.py

@@ -1,5 +1,5 @@
 """
-HTTP 工具模块
+HTTP tool module
 """
 import requests
 from requests.adapters import HTTPAdapter
@@ -12,15 +12,15 @@ def get_retry_session(
     status_forcelist: tuple = (500, 502, 503, 504)
 ) -> requests.Session:
     """
-    获取带重试机制的 HTTP Session
+    Get HTTP Session with retry mechanism
     
     Args:
-        retries: 重试次数
-        backoff_factor: 重试间隔因子
-        status_forcelist: 需要重试的 HTTP 状态码
+        retries: number of retries
+        backoff_factor: retry interval factor
+        status_forcelist: HTTP status codes that need to be retried
         
     Returns:
-        配置好的 Session 实例
+        Configured Session instance
     """
     session = requests.Session()
     retry = Retry(
@@ -36,6 +36,6 @@ def get_retry_session(
     return session
 
 
-# 全局共享 Session
+# Global shared session
 global_session = get_retry_session()