Add model auto-download and English logging

app/infrastructure/async_tasks.py

@@ -93,14 +93,14 @@ class AsyncTaskManager:
                 self.tasks[task_id]["result"] = result
                 self.tasks[task_id]["completed_at"] = time.time()
 
-            logger.info("Задача %s завершена успешно", task_id)
+            logger.info("Task %s completed successfully", task_id)
         except Exception as e:
             with self._lock:
                 self.tasks[task_id]["status"] = "failed"
                 self.tasks[task_id]["error"] = str(e)
                 self.tasks[task_id]["completed_at"] = time.time()
 
-            logger.error("Задача %s завершилась с ошибкой: %s", task_id, e)
+            logger.error("Task %s failed: %s", task_id, e)
     
     def get_task_status(self, task_id: str) -> Optional[Dict[str, Any]]:
         """
@@ -147,4 +147,4 @@ def transcribe_audio_async(file_path: str, transcription_service, params: Dict =
     params = params or {}
     def _transcribe():
         return transcription_service.transcribe(file_path, "async_task", params)
-    return task_manager.run_task(_transcribe)
+    return task_manager.run_task(_transcribe)