Method foldNow

src/db/wal-valve.ts:211–217

* Phase-boundary fold: backfill the ENTIRE WAL now (off-thread, awaited). * Called between bulk phases — e.g. after parsing, before resolution's * first reads — so the next phase never pages a bulk-write-sized WAL on * the main thread (the post-parse read against a multi-GB WAL is what *

()

   * keeps the event loop (and the watchdog heartbeat) turning.
   */
  async foldNow(): Promise<void> {
    await this.drain();
    if (this.growthBytes() <= 0) return;
    this.log(`foldNow: wal=${this.mb(this.db.getWalSizeBytes())} baseline=${this.mb(this.sizeAtLastFullBackfill)}`);
    this.pause = this.backfillFully().finally(() => { this.pause = null; });
    await this.pause;
  }

  /**
   * With the writer parked on the returned promise, loop passive passes until