browseHtmlPage wrapped its navigations in untilAborted(signal) but awaited
applyViewport, applyStealthPatches, and the finally-block page.close() raw.
When the shared headless daemon or the page target dies mid-setup, those
puppeteer calls never settle: the search hard timeout fires into a signal
with no listener at those await points, the provider promise hangs past
SEARCH_HARD_TIMEOUT_MS, and the turn never ends (only kill -9 recovers).
- Wrap applyViewport/applyStealthPatches in untilAborted(signal) so the
existing hard timeout can abort a dead-session setup.
- Bound the teardown page.close() with a fresh 5s deadline; .catch() only
covers rejection, not a hang, and the caller signal may already be fired.
Fixes#8865
naruto
cbd748046d