feat: add database backup import/export (#194)

src/app/api/settings/database/route.js

@@ -0,0 +1,26 @@
+import { NextResponse } from "next/server";
+import { exportDb, importDb } from "@/lib/localDb";
+
+export async function GET() {
+  try {
+    const payload = await exportDb();
+    return NextResponse.json(payload);
+  } catch (error) {
+    console.log("Error exporting database:", error);
+    return NextResponse.json({ error: "Failed to export database" }, { status: 500 });
+  }
+}
+
+export async function POST(request) {
+  try {
+    const payload = await request.json();
+    await importDb(payload);
+    return NextResponse.json({ success: true });
+  } catch (error) {
+    console.log("Error importing database:", error);
+    return NextResponse.json(
+      { error: error?.message || "Failed to import database" },
+      { status: 400 }
+    );
+  }
+}