When Şase Çöz is clicked and the decode (reused pre-decode or fresh) is still in
flight, the search form is replaced by a vehicle-page-shaped skeleton with a
sweeping shimmer, so the wait reads as "the page is loading" rather than an
unresponsive button. On success we navigate; candidates/errors fall back to the
form. When the pre-decode already resolved, the skeleton is near-instant.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The 17-char speculative pre-decode fired a POST /vehicles/decode and discarded
the result, then the button click fired a second identical decode — two
requests per VIN. Keep the pre-decode promise and have runDecode reuse it on the
first attempt (awaiting it if still in flight), so the click navigates off the
already-running decode. Retries and the sub-350ms "clicked before warm" case
fall back to a fresh decode; a failed warm retries once.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
