v0.18.3

Fixed

• summary now reports the file path at the end of its output. On a
  cache hit the path was printed before the content, so a long summary
  scrolled it off the top. It now prints last, with wording that says
  whether the file was freshly written (summary written to <path>) or
  served from cache (summary read from cache: <path>) — no more
  ambiguous "saved to" on a read.

Changed

• Docs: README repositioned around the three layers (live HUD /
  daily digest / machine report), supported agents named up front, and
  the demo GIF re-recorded as a three-layer walkthrough.