Method ingestEventForTests

src/sync/watcher.ts:755–757

* @internal Test-only: feed a synthetic project-relative change through the * same filter → pendingFiles → debounced-sync path a real fs.watch event * takes. Lets the watcher / staleness-banner suites stay deterministic * instead of racing on OS watch-delivery latency. See * {@link __emi

(relPath: string)

   * {@link __emitWatchEventForTests}.
   */
  ingestEventForTests(relPath: string): void {
    this.handleChange(normalizePath(relPath));
  }

  /**
   * Whether the watcher is currently active.