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/__init__.py

@@ -34,7 +34,7 @@ def get_pending_order_worker():
 
 
 def start_polymarket_worker():
-    """启动Polymarket后台任务"""
+    """Start the Polymarket background task."""
     try:
         from app.services.polymarket_worker import get_polymarket_worker
         get_polymarket_worker().start()
@@ -150,7 +150,7 @@ def restore_running_strategies():
                     logger.info(f"[OK] {strategy_type_name} {strategy_id} restored")
                 else:
                     logger.warning(f"[FAIL] {strategy_type_name} {strategy_id} restore failed (state may be stale)")
-                    # 如果恢复失败，更新数据库状态为stopped，避免策略处于"僵尸"状态
+                    # If recovery fails, update the database status to stopped to prevent the policy from being in a "zombie" state.
                     try:
                         strategy_service.update_strategy_status(strategy_id, 'stopped')
                         logger.info(f"[FIX] Updated strategy {strategy_id} status to 'stopped' after restore failure")
@@ -222,4 +222,3 @@ def create_app(config_name='default'):
         restore_running_strategies()
     
     return app
-