feat: add localization and site settings

src/app/api/gallery/route.ts

@@ -1,15 +1,24 @@
 import { NextRequest, NextResponse } from "next/server";
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/db";
+import { getApiLang, pickText } from "@/lib/api-locale";
 
 export async function GET(request: NextRequest) {
   const enabledOnly = request.nextUrl.searchParams.get("enabled") === "1";
+  const lang = getApiLang(request);
   const where = enabledOnly ? { enabled: true } : {};
   const images = await prisma.galleryImage.findMany({
     where,
     orderBy: { sortOrder: "asc" },
   });
-  return NextResponse.json(images);
+  return NextResponse.json(
+    images.map((img) => ({
+      ...img,
+      title: pickText(img.title, img.titleEn, lang),
+      titleZh: img.title,
+      titleEn: img.titleEn,
+    }))
+  );
 }
 
 export async function POST(request: NextRequest) {
@@ -23,6 +32,7 @@ export async function POST(request: NextRequest) {
     data: {
       imageUrl: body.imageUrl,
       title: body.title ?? "",
+      titleEn: body.titleEn ?? "",
       sortOrder: body.sortOrder ?? 0,
       enabled: body.enabled ?? true,
     },