Method constructor

src/lib/db/query-optimizer.ts:30–37

(client: MongoClient)

  private metrics: QueryPerformanceMetrics;

  constructor(client: MongoClient) {
    this.client = client;
    this.metrics = {
      queryCount: 0,
      startTime: Date.now(),
      queries: []
    };
  }

  private trackQuery(collection: string, operation: string) {
    this.metrics.queryCount++;