llk-audit kernel-tier module (present).

The presence of this file flips `run.sh --kernel-tier-status` to "available" and
lets `run.sh --full-jit` invoke bootstrap.sh. The kernel tier is the opt-in,
off-main, JIT-dependent recall of cb-sync / noc-sync / noc-atomic-exit / noc-read-barrier / noc-l1-invalidate / mailbox-sync over the
JIT-compiled kernel surface OUTSIDE tt-llk (ttnn/models/compute-API kernels).

Entry point: bootstrap.sh <arch> <out_dir>  (see its header for env controls).
Core:        capture.py  (build-log -> KERNEL fact base, GCC->clang translation).
Needs a runtime (WH/BH device or sim) when it runs a workload to capture, and
sfpi matching the repo pin (tt_metal/sfpi-version). Recall is complete only
over the kernel variants the workload exercised — see the coverage ledger.
