扩展存储：Mods 的持久键值存储

readonly storage: {
  get<T>(key: string, fallback?: T): T;
  set(key: string, value: unknown): void;
  delete(key: string): void;
  clear(): void;
  snapshot(): object;
};

const count = aether.storage.get("count", 0);
const name = aether.storage.get<string>("name", "Anonymous");

aether.storage.set("count", 42);
aether.storage.set("config", { theme: "dark", autoSend: false });

aether.storage.delete("count");

aether.storage.clear();

const all = aether.storage.snapshot();

aether.registerAction("increment", ({ amount = 1 }) => {
  const count = aether.storage.get("count", 0) + Number(amount);
  aether.storage.set("count", count);
});

aether.registerSurface("chat.composer.top", {
  id: "counter",
  render: ({ storage }) =>
    ui.row([
      ui.text(`Count: ${storage.count ?? 0}`),
      ui.button("Increment", "increment", { args: { amount: 1 } }),
    ]),
});