fix: fetch latest export config before export

- Call /api/config endpoint at export start to get latest settings
- Ensures export uses user's most recent configuration changes

app/page.tsx

@@ -220,8 +220,14 @@ export default function RecipeTranslationPage() {
         if (!data) return;
 
         try {
-            // 1. 获取导出设置
-            const { untranslatedColor, secondPageHeader, orientation } = exportConfig;
+            // 1. 先调用 API 获取最新导出设置
+            const configResponse = await fetch("/api/config");
+            const configResult = await configResponse.json();
+            const exportConfig = configResult.success ? configResult.data?.export : {
+                untranslatedColor: "CC0000",
+                orientation: "landscape",
+            };
+            const { untranslatedColor, orientation } = exportConfig;
 
             // 2. 收集所有需要翻译的内容（星期、餐食类型、菜品）
             const allNames: string[] = [];
@@ -272,7 +278,6 @@ export default function RecipeTranslationPage() {
 
             // 表头行 - 星期列头 + 餐食类型都要上中下英
             const headerCells: TableCell[] = [];
-            const weekEnglish = translations["week"] || translations["Week"] || "Day";
             headerCells.push(
                 new TableCell({
                     children: [
@@ -427,7 +432,7 @@ export default function RecipeTranslationPage() {
             console.error("Export error:", err);
             alert("导出失败，请重试");
         }
-    }, [data, fileName, exportConfig]);
+    }, [data, fileName]);
 
     const handleFileUpload = useCallback(
         async (file: File) => {