From 7d983d611c6694153037d2ba6700b7e5a4f256d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=A5=BF=E7=93=9C=C2=B0?= <wxh_email@yeah.net>
Date: Thu, 4 Jun 2026 19:49:21 +0800
Subject: [PATCH] fix: ignore extra backend env settings

---
 backend/config/main.py            | 3 ++-
 backend/tests/unit/test_config.py | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 backend/tests/unit/test_config.py

diff --git a/backend/config/main.py b/backend/config/main.py
index 695d1637..c735c7b8 100644
--- a/backend/config/main.py
+++ b/backend/config/main.py
@@ -19,7 +19,8 @@ class Config(BaseSettings):
     HELPER_ID: str = ''
 
     model_config = SettingsConfigDict(
-        env_file=('config/.env', 'config/.env.dev', 'config/.env.prod')
+        env_file=('config/.env', 'config/.env.dev', 'config/.env.prod'),
+        extra='ignore',
     )
 
 
diff --git a/backend/tests/unit/test_config.py b/backend/tests/unit/test_config.py
new file mode 100644
index 00000000..b7a771e3
--- /dev/null
+++ b/backend/tests/unit/test_config.py
@@ -0,0 +1,5 @@
+from config.main import Config
+
+
+def test_config_ignores_extra_environment_fields():
+    assert Config.model_config.get('extra') == 'ignore'