v0.39.2

Fixed

• Pulse scripts now ship with the extension — previously lived only in
  .stelow/pulse/ (gitignored), so anyone installing stelow via GitHub/npm
  got a broken Pulse. The 5 pulse files now live in extensions/stelow/pulse/
  (tracked, versioned). The extension's ensurePulseScripts() auto-copies
  them to the user's .stelow/pulse/ on first /sw-pulse invocation.
• PULSE_MODEL no longer hardcoded to haiku — defaults to empty,
  uses harness-configured model. --model flag only passed when set.
• 12 broken TOC anchors in README — double-dash to single-dash for
  single-codepoint emoji headings. toSlug test corrected.

Added

• scripts/setup-pulse.sh — standalone Pulse setup, no pi required.
  Useful for CI/CD, cron setup, or pre-staging before pi is installed.
• setup.sh Step 11/11 (Pulse) — optional step, delegates to
  setup-pulse.sh. Renumbered 10 previous steps /10 → /11.
• Pulse + HITL differentiator — top-of-README entry describing Pulse
  as background cron-driven processing with review_mode=Auto, and
  the [human-in-the-loop] marker for items needing human judgement.