diff --git a/backend/app/services/ai_provider.py b/backend/app/services/ai_provider.py
index 2c7ce10..16af234 100644
--- a/backend/app/services/ai_provider.py
+++ b/backend/app/services/ai_provider.py
@@ -353,10 +353,9 @@ def _resolve_windows_desktop_codex() -> str | None:
 def _prepare_codex_home(target: Path) -> None:
     """Create an isolated CODEX_HOME that reuses auth but not fragile config."""
     source = _codex_home()
-    for filename in ("auth.json", ".env"):
-        src = source / filename
-        if src.exists():
-            shutil.copy2(src, target / filename)
+    auth_file = source / "auth.json"
+    if auth_file.exists():
+        shutil.copy2(auth_file, target / "auth.json")
     _write_compatible_codex_config(target / "config.toml")
 
 
diff --git a/frontend/src/pages/settings/AI.tsx b/frontend/src/pages/settings/AI.tsx
index 8e8bf80..96d5b55 100644
--- a/frontend/src/pages/settings/AI.tsx
+++ b/frontend/src/pages/settings/AI.tsx
@@ -29,8 +29,8 @@ const PRESETS: { label: string; provider?: string; url: string; model: string; c
   { label: '通义千问', url: 'https://dashscope.aliyuncs.com/compatible-mode/v1', model: 'qwen-3.6plus', website: 'https://tongyi.aliyun.com/', websiteLabel: 'tongyi.aliyun.com', description: '阿里云 DashScope 兼容模式接口。' },
   { label: '智谱 GLM', url: 'https://open.bigmodel.cn/api/paas/v4', model: 'glm-5.2', website: 'https://open.bigmodel.cn/', websiteLabel: 'open.bigmodel.cn', description: '智谱 AI 官方 OpenAI 兼容接口。' },
   { label: 'Kimi', url: 'https://api.moonshot.cn/v1', model: 'kimi-k2.6', website: 'https://platform.moonshot.cn/', websiteLabel: 'platform.moonshot.cn', description: '月之暗面 Moonshot 官方 OpenAI 兼容接口，支持超长上下文。' },
-  { label: '炸鸡中转站', url: 'https://code.alysc.top/v1', model: 'gpt-5.5', website: 'https://code.alysc.top/sign-up?aff=1afk', websiteLabel: 'code.alysc.top', description: 'OpenAI 兼容中转服务，适合直接使用国际模型。', partner: true, promo: '通过链接邀请注册赠送免费额度 · 国际模型最低0.01倍率' },
   { label: 'Codex CLI', provider: CODEX_PROVIDER, url: '', model: '', codexCommand: CODEX_COMMAND, website: 'https://developers.openai.com/codex/noninteractive', websiteLabel: 'codex exec', description: '调用本机 Codex CLI 的 codex exec, 适合已登录 ChatGPT/Codex 的本地环境。' },
+  { label: '炸鸡中转站', url: 'https://code.alysc.top/v1', model: 'gpt-5.5', website: 'https://code.alysc.top/sign-up?aff=1afk', websiteLabel: 'code.alysc.top', description: 'OpenAI 兼容中转服务，适合直接使用国际模型。', partner: true, promo: '通过链接邀请注册赠送免费额度 · 国际模型最低0.01倍率' },
 ]
 
 export function SettingsAIPanel() {