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/config_loader.py

@@ -17,7 +17,7 @@ from app.utils.logger import get_logger
 
 logger = get_logger(__name__)
 
-# 配置缓存
+# Configure cache
 _config_cache: Optional[Dict[str, Any]] = None
 
 
@@ -32,7 +32,7 @@ def load_addon_config() -> Dict[str, Any]:
     """
     global _config_cache
     
-    # 如果缓存存在，直接返回
+    # If the cache exists, return directly
     if _config_cache is not None:
         return _config_cache
     
@@ -147,16 +147,16 @@ def load_addon_config() -> Dict[str, Any]:
 
 def _convert_config_value(value: str, value_type: str) -> Any:
     """
-    根据类型转换配置值（与PHP端convertConfigValue方法保持一致）
+    Convert configuration values ​​according to type (consistent with the convertConfigValue method on the PHP side)
     
     Args:
-        value: 配置值字符串（可能为None）
-        value_type: 配置类型
+        value: configuration value string (may be None)
+        value_type: configuration type
         
     Returns:
-        转换后的配置值
+        Converted configuration value
     """
-    # 处理 None 或空值
+    # Handling None or null values
     if value is None or value == '':
         if value_type == 'int':
             return 0
@@ -186,7 +186,7 @@ def _convert_config_value(value: str, value_type: str) -> Any:
             return str(value) if value is not None else ''
     except (ValueError, TypeError) as e:
         logger.warning(f"Config value type conversion failed: value={value}, type={value_type}, error={str(e)}")
-        # 转换失败时返回默认值
+        # Returns default value if conversion fails
         if value_type == 'int':
             return 0
         elif value_type == 'float':
@@ -201,10 +201,10 @@ def _convert_config_value(value: str, value_type: str) -> Any:
 
 def get_internal_api_key() -> Optional[str]:
     """
-    获取内部API密钥（优先从环境变量读取）
+    Get the internal API key (preferably read from environment variables)
     
     Returns:
-        内部API密钥，如果未配置则返回None
+        Internal API key, returns None if not configured
     """
     try:
         env_val = os.getenv('INTERNAL_API_KEY', '').strip()
@@ -227,7 +227,7 @@ def get_internal_api_key() -> Optional[str]:
 
 def clear_config_cache():
     """
-    清除配置缓存（配置更新后调用）
+    Clear configuration cache (called after configuration update)
     """
     global _config_cache
     _config_cache = None