feat(map): add event-driven GPS update

src/utils/cacheStore.ts

@@ -0,0 +1,30 @@
+// src/utils/cacheStore.ts
+interface CacheItem<T> {
+  data: T;
+  timestamp: number;
+}
+
+const TTL = 1 * 1000; // dữ liệu có hiệu lực trong 1 giây để GPS realtime
+const cache: Record<string, CacheItem<any>> = {};
+
+export function getCache<T>(key: string): T | null {
+  const item = cache[key];
+  if (!item) return null;
+  if (Date.now() - item.timestamp > TTL) {
+    delete cache[key];
+    return null;
+  }
+  return item.data;
+}
+
+export function setCache<T>(key: string, data: T) {
+  cache[key] = { data, timestamp: Date.now() };
+}
+
+export function invalidate(key: string) {
+  delete cache[key];
+}
+
+export function getAllCacheKeys(): string[] {
+  return Object.keys(cache);
+}