feat: add recipe translation tool with AI translation and settings management

- Add Word document parsing and translation export
- Add database configuration management
- Add AI/LLM translation configuration
- Add translation vocabulary management
- Add export settings (colors, page orientation, headers)
- Separate database and AI configurations
- Add debounced search to prevent database overload

app/api/translate/route.ts

@@ -0,0 +1,48 @@
+import { NextRequest, NextResponse } from "next/server";
+import { getTranslation, getTranslations } from "@/lib/database";
+
+// 单个翻译查询
+export async function GET(request: NextRequest) {
+  const { searchParams } = new URL(request.url);
+  const chineseName = searchParams.get("name");
+
+  if (!chineseName) {
+    return NextResponse.json({ error: "缺少 name 参数" }, { status: 400 });
+  }
+
+  const translation = await getTranslation(chineseName);
+
+  return NextResponse.json({
+    chinese: chineseName,
+    english: translation,
+    found: translation !== null,
+  });
+}
+
+// 批量翻译查询
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const { names } = body as { names: string[] };
+
+    if (!names || !Array.isArray(names)) {
+      return NextResponse.json({ error: "缺少 names 参数（数组）" }, { status: 400 });
+    }
+
+    const translations = await getTranslations(names);
+
+    const result: Record<string, string | null> = {};
+    for (const name of names) {
+      result[name] = translations.get(name) || null;
+    }
+
+    return NextResponse.json({
+      translations: result,
+      total: names.length,
+      found: translations.size,
+    });
+  } catch (error) {
+    console.error("Translation API error:", error);
+    return NextResponse.json({ error: "请求格式错误" }, { status: 400 });
+  }
+}