Isolate measured UID watchdog failure in the native TCG diagnostic

tools/ci/macos-native-readiness.sh

@@ -112,7 +112,10 @@ cancel_probe() {
 run_command() {
   local name="$1"
   shift
-  local process timer exit_code started waited
+  local process timer exit_code started waited command_limit=45
+  # Run 4161: even native uname/ps startup took 34-42s under TCG.
+  # Isolate only the failed UID gate; every other watchdog remains unchanged.
+  [[ "$name" != uid ]] || command_limit=180
   LAST_OUTPUT="/tmp/native-diagnostic-$name.out"
   printf '\n[proof-command] %s:' "$name" >&3
   printf ' %s' "$@" >&3
@@ -122,9 +125,10 @@ run_command() {
   process=$!
   ACTIVE_COMMAND="$process"
   printf '[proof-start] %s child=%s shell=%s parent=%s seconds=%s\n' "$name" "$process" "$$" "$PPID" "$started" >&3
+  printf '[proof-limit] %s %ss\n' "$name" "$command_limit" >&3
   (
     trap 'exit 0' TERM INT
-    IFS= read -r -t 45 -u 9 unused || :
+    IFS= read -r -t "$command_limit" -u 9 unused || :
     printf '[proof-timeout] %s child=%s elapsed=%ss signal=TERM\n' "$name" "$process" "$((SECONDS - started))" >&3
     kill -TERM "$process" 2>/dev/null || :
     IFS= read -r -t 2 -u 9 unused || :