Method getWalSizeBytes

src/db/index.ts:559–566

* Size of the `-wal` sidecar file in bytes. 0 when it doesn't exist (non-WAL * journal mode, in-memory DB, or no write since the last checkpoint+reset).

()

   * journal mode, in-memory DB, or no write since the last checkpoint+reset).
   */
  getWalSizeBytes(): number {
    if (!this.dbPath || this.dbPath === ':memory:') return 0;
    try {
      return fs.statSync(`${this.dbPath}-wal`).size;
    } catch {
      return 0;
    }
  }

  /** Size of the main DB file in bytes (0 for in-memory/unknown) — the WAL
   * valve scales its fold caps with it (resolveWalValveMb). */