[SYCL][CI][diagnostic] Run adapter-identity trace, drop cdb/WER machinery
Crash site is already known from the in-process symbolized stack. Replace the
cdb/WER/reg setup with a simple run that sets SYCL_TRACE_ADAPTER_UAF (my getenv
takes the path verbatim -- no UR ':' parsing issue) and uploads the resulting
adapter-identity trace plus the console crash stack. The LIVE=0/1 marker in the
trace decides stale-or-freed vs reset-live adapter.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>