Merge pull request #17 from maitamdev/feat/cache-utils

feat(utils): add cache utility

Author: maitamdev

src/utils/cacheUtils.ts

@@ -0,0 +1,19 @@
+// Simple in-memory cache with TTL
+interface CacheEntry<T> { value: T; expiresAt: number; }
+class SimpleCache {
+  private cache = new Map<string, CacheEntry<unknown>>();
+  set<T>(key: string, value: T, ttlMs: number = 300000): void {
+    this.cache.set(key, { value, expiresAt: Date.now() + ttlMs });
+  }
+  get<T>(key: string): T | null {
+    const entry = this.cache.get(key);
+    if (!entry) return null;
+    if (Date.now() > entry.expiresAt) { this.cache.delete(key); return null; }
+    return entry.value as T;
+  }
+  has(key: string): boolean { return this.get(key) !== null; }
+  delete(key: string): void { this.cache.delete(key); }
+  clear(): void { this.cache.clear(); }
+  size(): number { return this.cache.size; }
+}
+export const appCache = new SimpleCache();