v0.426.0 — THE TESTER LOOP SHIP

The first outside user, and the lesson he taught us.

- THE LOOP CLOSED: hours after v0.425.0 hit PyPI, a non-technical
  tester installed it on a machine this project never touched, hit
  the Windows Scripts-not-on-PATH trap, received ONE relayed command
  (python -m star_magic_cli survey --demo), and ran the complete demo
  - the +0.7 pct self-grading cross-check on his own screen. The
  install-to-result loop is closed.
- THE LESSON SHIPPED BACK: TESTER_GUIDE.md - every click written out,
  the PATH-proof python -m form as the primary command, the yellow
  warnings pre-explained, the py fallback included, the feedback
  questions at the end - rides the wheel and prints in any terminal
  via the new star-magic guide command. The support exchange that
  fixed one user can now never be needed again.

Simulator v1.87.0. Acceptance 99/99. Gate 6,082/0. Registry 7,067.
