fix(JJF1Y39): fix CI step under set -euo pipefail (F1/F2/F3)

Author: T-Crypt

.github/workflows/verify.yml

@@ -30,13 +30,16 @@ jobs:
           set -euo pipefail
           python3 collector/speculum.py --port 18792 &
           pid=$!
+          trap 'kill "$pid" 2>/dev/null || true' EXIT
           for i in $(seq 1 20); do
             curl -sf http://127.0.0.1:18792/api/snapshot >/dev/null && break
             sleep 0.5
           done
-          curl -sf http://127.0.0.1:18792/api/snapshot | python3 -m json.tool | head
-          curl -sN -m 2 http://127.0.0.1:18792/api/stream | head
-          kill "$pid"
+          curl -sf http://127.0.0.1:18792/api/snapshot | python3 -m json.tool
+          tmp=$(mktemp)
+          timeout 2 curl -sN http://127.0.0.1:18792/api/stream > "$tmp" || true
+          head -n 2 "$tmp"
+          rm -f "$tmp"
 
   windows:
     runs-on: windows-latest