fix: stabilize fnos lan smoke script

scripts/smoke_fnos_storyforge_lan.sh

@@ -51,11 +51,8 @@ echo "runtime config ok"
 
 echo "[3/6] check collector healthz"
 curl_fetch "$BACKEND_URL/healthz" >"$health_file"
-python3 - "$health_file" "$CUTVIDEO_URL" <<'PY'
-import json
-import pathlib
-import sys
-
+python3 -c '
+import json, pathlib, sys
 payload = json.loads(pathlib.Path(sys.argv[1]).read_text())
 expected_cutvideo = sys.argv[2]
 if str(payload.get("status") or "").lower() != "ok":
@@ -68,17 +65,14 @@ if lan_routing.get("cutvideoBaseUrl") != expected_cutvideo:
 if lan_routing.get("cutvideoRouteMode") != "fnos_tunnel":
     raise SystemExit(f"unexpected cutvideoRouteMode: {lan_routing.get('cutvideoRouteMode')!r}")
 print("healthz ok")
-PY
+' "$health_file" "$CUTVIDEO_URL"
 
 echo "[4/6] check auto-session"
 curl_fetch -X POST "$BACKEND_URL/v2/auth/auto-session" \
   -H 'content-type: application/json' \
   -d '{}' >"$session_file"
-python3 - "$session_file" "$token_file" <<'PY'
-import json
-import pathlib
-import sys
-
+python3 -c '
+import json, pathlib, sys
 payload = json.loads(pathlib.Path(sys.argv[1]).read_text())
 token = str(payload.get("token") or "")
 mode = str(payload.get("mode") or "")
@@ -91,17 +85,14 @@ if not username:
     raise SystemExit("auto-session returned empty username")
 pathlib.Path(sys.argv[2]).write_text(token, encoding="utf-8")
 print(f"auto-session ok: {username}")
-PY
+' "$session_file" "$token_file"
 token="$(cat "$token_file")"
 
 echo "[5/6] check integrations health"
 curl_fetch "$BACKEND_URL/v2/integrations/health" \
   -H "Authorization: Bearer $token" >"$integrations_file"
-python3 - "$integrations_file" "$CUTVIDEO_URL" <<'PY'
-import json
-import pathlib
-import sys
-
+python3 -c '
+import json, pathlib, sys
 payload = json.loads(pathlib.Path(sys.argv[1]).read_text())
 expected_cutvideo = sys.argv[2]
 cutvideo = payload.get("cutvideo") or {}
@@ -112,21 +103,18 @@ if not cutvideo.get("reachable"):
 if not cutvideo.get("supports_uploads"):
     raise SystemExit("cutvideo uploads are not available")
 print("integrations ok")
-PY
+' "$integrations_file" "$CUTVIDEO_URL"
 
 echo "[6/6] check fnOS tunnel endpoints"
 curl_fetch "$CUTVIDEO_URL/api/bootstrap" >"$bootstrap_file"
 curl_fetch "$COMPAT_URL/" >"$compat_file"
-python3 - "$bootstrap_file" <<'PY'
-import json
-import pathlib
-import sys
-
+python3 -c '
+import json, pathlib, sys
 payload = json.loads(pathlib.Path(sys.argv[1]).read_text())
 if not payload:
     raise SystemExit("empty cutvideo bootstrap payload")
 print("cutvideo bootstrap ok")
-PY
+' "$bootstrap_file"
 echo "compat ok"
 
 echo "fnOS lan smoke passed:"