缓存看股数据

backend/app/config.py

@@ -1,10 +1,15 @@
 """应用配置（pydantic-settings）。可由 .env / 环境变量覆盖。"""
+from pathlib import Path
+
 from pydantic import model_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
+# 确保 .env 文件总是相对于 config.py 所在目录加载，无论从哪个目录启动 uvicorn
+_ENV_FILE = Path(__file__).resolve().parent.parent / ".env"
+
 
 class Settings(BaseSettings):
-    model_config = SettingsConfigDict(env_file=".env", extra="ignore")
+    model_config = SettingsConfigDict(env_file=str(_ENV_FILE) if _ENV_FILE.exists() else ".env", extra="ignore")
 
     app_name: str = "Stock Backtest"