fix: let recovered upstream error probes trigger cooldown

scripts/platform-infra-sub2api-codex-routing-contract-test.ts

@@ -45,6 +45,9 @@ if (parsed.pool?.defaultTempUnschedulable?.enabled === true) {
   assertCondition(rules.every((rule) => Number.isInteger(rule.statusCode) && (rule.statusCode ?? 0) >= 100 && (rule.statusCode ?? 0) <= 599), "temporary unschedulable rules must declare valid HTTP status codes", rules);
   assertCondition(rules.every((rule) => Array.isArray(rule.keywords) && rule.keywords.length > 0), "temporary unschedulable rules must declare non-empty keywords", rules);
   assertCondition(rules.every((rule) => Number.isInteger(rule.durationMinutes) && (rule.durationMinutes ?? 0) > 0), "temporary unschedulable rules must declare positive cooldown durations", rules);
+  const gateway502Rule = rules.find((rule) => rule.statusCode === 502);
+  const gateway502Keywords = new Set((gateway502Rule?.keywords ?? []).map((keyword) => keyword.toLowerCase()));
+  assertCondition(gateway502Keywords.has("recovered upstream error"), "502 temporary-unschedulable rule must catch recovered upstream error wrappers", gateway502Rule);
 }
 assertCondition(typeof parsed.localCodex?.responsesSmokeModel === "string" && parsed.localCodex.responsesSmokeModel.length > 0, "localCodex.responsesSmokeModel must be declared for Responses smoke validation", parsed.localCodex);
 
@@ -56,6 +59,7 @@ console.log(JSON.stringify({
     "profile load factor overrides are YAML-controlled positive integers",
     "optional WebSocket mode overrides use supported values",
     "temporary unschedulable rules are structurally valid when enabled",
+    "generic recovered upstream error wrappers are caught by cooldown rules",
     "Responses smoke model is YAML-declared",
   ],
 }));