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Cross-check el() ids against index.html in the selftest

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A knob wired in app.js but missing from the markup throws during wiring, aborts
the module and leaves a blank page - a symptom pointing nowhere near its cause.
It has now happened twice, so it gets a check rather than vigilance: the
selftest fetches both files and compares the id sets in each direction.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Your Name 2026-09-24 15:25:39 -04:00
parent 9a11eeabc1
commit a146d271b6
3 changed files with 38 additions and 2 deletions
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@ -148,7 +148,11 @@ chromium --headless --virtual-time-budget=8000 --dump-dom \
http://127.0.0.1:8777/selftest.html | grep -oE '(PASS|FAIL) [0-9/]+'
```
Or open `selftest.html`. 29 assertions over the stages below detection.
Or open `selftest.html`. 41 assertions over the stages below detection, plus a
wiring cross-check: every `el('id')` in `app.js` must exist in `index.html`. A
knob wired in one but not the other throws during wiring, which aborts the rest
of the module and leaves a blank page — a symptom that points nowhere near its
cause, and which has happened twice.
The ring-simplicity check is the load-bearing one. Because `hold` parts *cut*
between poses instead of interpolating, a ring whose vertex order is wrong