fix: resolve model paths for toolbox container access

Toolbox containers mount host / at /run/host/ but only /home is directly
accessible. Models on /data/models/ need the /run/host/ prefix when passed
to llama-bench inside the container.

Both run-baseline.sh and run-suite.sh now resolve model paths with realpath
and prepend /run/host/ for non-home paths. Paths under /home/ are passed
as-is (already mounted directly).

Verified with smoke test: Qwen3.5-0.8B-Q8_0 → 8900 t/s pp512, 177 t/s tg128.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/benchmark/run-baseline.sh

@@ -165,12 +165,18 @@ for MODEL_PATH in "${MODEL_PATHS[@]}"; do
             ENV_ARGS=(env ROCBLAS_USE_HIPBLASLT=1)
         fi
 
+        # Resolve model path for toolbox (host paths need /run/host/ prefix)
+        TOOLBOX_MODEL_PATH="$(realpath "$MODEL_PATH")"
+        if [[ "$TOOLBOX_MODEL_PATH" != /home/* ]]; then
+            TOOLBOX_MODEL_PATH="/run/host${TOOLBOX_MODEL_PATH}"
+        fi
+
         # Standard test (pp512 + tg128, default context)
         OUT="$RESULT_DIR/${MODEL_NAME}__${BACKEND_SAFE}__fa1.log"
         if [[ ! -s "$OUT" ]]; then
             printf "\n${BOLD}>> [%s] %s — standard test${RESET}\n" "$BACKEND" "$MODEL_NAME"
             CMD=(toolbox run -c "$BACKEND" -- "${ENV_ARGS[@]}" "$BENCH_BIN"
-                -ngl 99 -mmp 0 -m "$MODEL_PATH" -fa 1 -r "$REPS_STANDARD")
+                -ngl 99 -mmp 0 -m "$TOOLBOX_MODEL_PATH" -fa 1 -r "$REPS_STANDARD")
 
             printf "  cmd: %s\n" "${CMD[*]}"
             if "${CMD[@]}" > "$OUT" 2>&1; then
@@ -197,7 +203,7 @@ for MODEL_PATH in "${MODEL_PATHS[@]}"; do
             [[ "$BACKEND" == *vulkan* ]] && UB_SIZE=512
 
             CMD_LC=(toolbox run -c "$BACKEND" -- "${ENV_ARGS[@]}" "$BENCH_BIN"
-                -ngl 99 -mmp 0 -m "$MODEL_PATH" -fa 1
+                -ngl 99 -mmp 0 -m "$TOOLBOX_MODEL_PATH" -fa 1
                 -p 2048 -n 32 -d 32768 -ub "$UB_SIZE"
                 -r "$REPS_LONGCTX")