fix: reduce repeated upstream error exposure

config/platform-infra/sub2api-codex-pool.yaml

@@ -33,16 +33,16 @@ runtime:
         rules:
           - statusCode: 429
             keywords: [concurrency limit exceeded, upstream rate limit exceeded]
-            durationMinutes: 1
-            description: 明确命中上游并发或速率限制时短时冷却当前账号。
+            durationMinutes: 3
+            description: 明确命中持续性上游并发或速率限制时冷却当前账号三分钟。
           - statusCode: 400
             keywords: [input must be a list, selected model is at capacity]
             durationMinutes: 1
             description: 明确命中 Responses input 列表兼容错误或模型容量不足时短时冷却并切换账号。
           - statusCode: 500
-            keywords: [failed to validate api key, do request failed]
+            keywords: [failed to validate api key, do request failed, upstream gateway error]
             durationMinutes: 1
-            description: 上游 API-key 查询依赖或请求传输内部失败时短时冷却当前账号。
+            description: 上游 API-key 查询依赖、请求传输或网关内部失败时短时冷却当前账号。
           - statusCode: 502
             keywords: [upstream service temporarily unavailable, upstream request failed, service temporarily unavailable, overloaded, concurrency limit exceeded, upstream rate limit exceeded]
             durationMinutes: 1
@@ -52,9 +52,9 @@ runtime:
             durationMinutes: 1
             description: 明确命中 503 上游暂时不可用、过载或并发限制时短时冷却当前账号。
           - statusCode: 504
-            keywords: [concurrency limit exceeded, upstream service temporarily unavailable, input must be a list]
+            keywords: [concurrency limit exceeded, upstream service temporarily unavailable, service temporarily unavailable, upstream gateway error, input must be a list]
             durationMinutes: 1
-            description: 明确命中 504 上游并发限制、暂时不可用或 Responses input 列表兼容错误时短时冷却当前账号。
+            description: 明确命中 504 上游并发限制、暂时不可用、网关错误或 Responses input 列表兼容错误时短时冷却当前账号。
           - statusCode: 522
             keywords: [upstream request failed]
             durationMinutes: 1