Class NullEmbedCache

apps/memos-local-plugin/core/embedding/cache.ts:126–140

 * No-op cache; used when `cache.enabled: false` to keep call sites uniform.
 */
export class NullEmbedCache implements EmbedCache {
  get(_key: string): EmbeddingVector | undefined {
    return undefined;
  }
  set(_key: string, _vec: EmbeddingVector): void {
    /* no-op */
  }
  has(_key: string): boolean {
    return false;
  }
  clear(): void {}
  stats(): EmbedCacheStats {
    return { size: 0, maxItems: 0, hits: 0, misses: 0, evictions: 0 };
  }
}