v0.0.30

• Opt-in datadir auto-reload (qfg-mol-0kr, qfg-zx3y.1). New dataDirAutoReload option (default
  false) makes the SDK watch the configured datadir via Node's built-in
  fs.watch({recursive: true}) and re-read the envelope when files change on disk (editor save,
  git pull, build step). On a successful re-read the SDK fires the existing onConfigUpdate
  callback — no parallel notification path. Behavior contract: parse-then-swap (on JSON parse
  error the previous envelope keeps serving reads and the callback does not fire); debounced via
  dataDirAutoReloadDebounceMs (default 200ms) to coalesce atomic-rename editor bursts and git-pull
  churn into a single reload; graceful degrade — if watch registration fails (read-only fs,
  immutable container) the SDK logs and continues without watching rather than throwing;
  symlinks are resolved to their real path at start time (editing the file the link points at is
  detected, atomic flips of the link itself are not); close() stops the watcher and clears any
  pending debounce timer. No new runtime dependencies. Datadir mode stays silent until callers opt
  in. README documents when to enable vs. when not to (build-time-embedded artifacts, read-only fs,
  prod paths where reload timing matters).