feat(transfer): implement transfer functionality with user selection and balance validation

src/app/api/users/route.ts

@@ -0,0 +1,19 @@
+import { NextResponse } from "next/server";
+import { auth } from "~/server/auth";
+import { db } from "~/server/db";
+
+export async function GET() {
+  const session = await auth();
+
+  if (!session?.user?.id) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+
+  const users = await db.user.findMany({
+    where: { id: { not: session.user.id } },
+    select: { id: true, name: true },
+    orderBy: { name: "asc" },
+  });
+
+  return NextResponse.json(users);
+}