Partial fix. The generator's block-form `evaluate(() => { ... })`
swallowed blocks that weren't window-setup assignments (e.g. `const e =
new Event(...); elem.dispatchEvent(e);`). It now only `continue`s when
at least one window-setup pair was parsed; otherwise falls through to
downstream patterns. Also added a new pattern that recognises the
`evaluate(() => { const e = new Event(...); document.querySelector(SEL)
.dispatchEvent(e); })` shape and emits a `dom-dispatch` op.
Still failing: "at start of", "in a element target", "in a symbol
write" — root cause here is that the inserted-button's hyperscript
handler still isn't activating in the afterbegin / innerHTML paths.
Tracked separately.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
giles
f21eb00878