优化多可选答案时的处理逻辑

ef_course_autopilot.py

@@ -162,7 +162,14 @@ def build_response_gapfill(task: TaskInfo) -> dict:
     """gapfill: 填空题 — 优先使用expectedResponse中的正确答案"""
     expected = task.expected_response.get("contents", {}).get("gapfill", {})
     if expected:
-        return {"gapfill": expected}
+        result = {}
+        for gid, gdata in expected.items():
+            user_input = gdata.get("userInput", "")
+            # 处理 "friendlier | more friendly" 多答案格式，取第一个
+            if " | " in user_input:
+                user_input = user_input.split(" | ")[0].strip()
+            result[gid] = {"id": gid, "userInput": user_input}
+        return {"gapfill": result}
 
     # 回退：从task.detail获取gap列表, 填入空字符串
     gf = task.task_detail.get("gapfill", {})