锁定 Provider 适配层兼容行为

验证 neutral adapter 默认关闭 reasoning 捕获

补充带 reasoning 上游响应的正文流回归覆盖

确认 GameAgent 与 AGC Runtime 继续只消费正文字段

server-rs/crates/platform-llm/src/provider_adapter.rs

@@ -808,6 +808,7 @@ mod tests {
         assert_eq!(mapped.max_output_tokens, Some(2048));
         assert_eq!(mapped.request_timeout_ms, Some(3000));
         assert!(mapped.enable_web_search);
+        assert!(!mapped.capture_reasoning);
         assert_eq!(mapped.function_tools.len(), 1);
         assert!(mapped.function_tools[0].strict);
         assert_eq!(mapped.tool_choice, Some(LlmToolChoice::Required));
@@ -1091,7 +1092,7 @@ mod tests {
                     (
                         "text/event-stream",
                         concat!(
-                            "data: {\"id\":\"loopback-stream\",\"choices\":[{\"delta\":{\"content\":\"可\"},\"finish_reason\":null}]}\n\n",
+                            "data: {\"id\":\"loopback-stream\",\"choices\":[{\"delta\":{\"reasoning_content\":\"隐藏\",\"content\":\"可\"},\"finish_reason\":null}]}\n\n",
                             "data: {\"id\":\"loopback-stream\",\"choices\":[{\"delta\":{\"content\":\"用\"},\"finish_reason\":\"stop\"}]}\n\n",
                             "data: [DONE]\n\n"
                         ),
@@ -1099,7 +1100,7 @@ mod tests {
                 } else {
                     (
                         "application/json",
-                        r#"{"id":"loopback-non-stream","model":"loopback-model","choices":[{"message":{"content":"可用"},"finish_reason":"stop"}]}"#,
+                        r#"{"id":"loopback-non-stream","model":"loopback-model","choices":[{"message":{"reasoning_content":"隐藏","content":"可用"},"finish_reason":"stop"}]}"#,
                     )
                 };
                 let response = format!(