setup admin connection

sop-back/app/core/config.py

@@ -9,7 +9,10 @@ class Settings(BaseSettings):
     VERSION: str = "0.1.0"
     ALLOWED_ORIGINS: List[str] = ["*"]
 
-    ADMIN_ENABLED: bool = False
+    # Single hardcoded admin account, configured via env.
+    # If either field is empty, admin login is effectively disabled.
+    ADMIN_USERNAME: str = ""
+    ADMIN_PASSWORD: str = ""
 
     DATABASE_URL: str = "sqlite:///./data/sop.db"