chore(codex): 调整 Codex 预设模板与占位符（auth.json/config.toml 与表单占位）

src/components/ProviderForm.tsx

@@ -48,7 +48,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
   const [codexConfig, setCodexConfig] = useState("");
   const [codexApiKey, setCodexApiKey] = useState("");
   const [selectedCodexPreset, setSelectedCodexPreset] = useState<number | null>(
-    null,
+    null
   );
 
   // 初始化 Codex 配置
@@ -134,7 +134,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
   };
 
   const handleChange = (
-    e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>,
+    e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>
   ) => {
     const { name, value } = e.target;
 
@@ -171,7 +171,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
     // 更新JSON配置
     const updatedConfig = updateCoAuthoredSetting(
       formData.settingsConfig,
-      checked,
+      checked
     );
     setFormData({
       ...formData,
@@ -202,7 +202,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
   // Codex: 应用预设
   const applyCodexPreset = (
     preset: (typeof codexProviderPresets)[0],
-    index: number,
+    index: number
   ) => {
     const authString = JSON.stringify(preset.auth || {}, null, 2);
     setCodexAuth(authString);
@@ -227,7 +227,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
     const configString = setApiKeyInConfig(
       formData.settingsConfig,
       key.trim(),
-      { createIfMissing: selectedPreset !== null },
+      { createIfMissing: selectedPreset !== null }
     );
 
     // 更新表单配置
@@ -281,7 +281,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
   useEffect(() => {
     if (initialData) {
       const parsedKey = getApiKeyFromConfig(
-        JSON.stringify(initialData.settingsConfig),
+        JSON.stringify(initialData.settingsConfig)
       );
       if (parsedKey) setApiKey(parsedKey);
     }
@@ -427,7 +427,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
                   placeholder={
                     isCodexOfficialPreset
                       ? "官方无需填写 API Key，直接保存即可"
-                      : "只需要填这里，上方 auth.json 会自动填充"
+                      : "只需要填这里，下方 auth.json 会自动填充"
                   }
                   disabled={isCodexOfficialPreset}
                   autoComplete="off"
@@ -471,14 +471,15 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
                       setCodexAuth(value);
                       try {
                         const auth = JSON.parse(value || "{}");
-                        const key = typeof auth.api_key === "string" ? auth.api_key : "";
+                        const key =
+                          typeof auth.api_key === "string" ? auth.api_key : "";
                         setCodexApiKey(key);
                       } catch {
                         // ignore
                       }
                     }}
                     placeholder={`{
-  "api_key": "your-codex-api-key"
+  "OPENAI_API_KEY": "sk-your-api-key-here"
 }`}
                     rows={6}
                     style={{ fontFamily: "monospace", fontSize: "14px" }}
@@ -493,9 +494,7 @@ const ProviderForm: React.FC<ProviderFormProps> = ({
                     id="codexConfig"
                     value={codexConfig}
                     onChange={(e) => setCodexConfig(e.target.value)}
-                    placeholder={`# Codex configuration
-model = "codex-model"
-temperature = 0.7`}
+                    placeholder={``}
                     rows={8}
                     style={{ fontFamily: "monospace", fontSize: "14px" }}
                     required