fix(aihr): require interview answers before scoring

backend/ruoyi-modules/ruoyi-aihr/src/main/java/org/dromara/aihr/service/AihrInterviewService.java

@@ -110,6 +110,9 @@ public class AihrInterviewService {
                 }
             });
         }
+        if (session.questions().stream().noneMatch(question -> !isBlank(session.answers().get(question.questionId())))) {
+            throw new IllegalArgumentException("请先提交至少一条有效面试回答");
+        }
         ScoreResult score = scoreWithModel(session).orElseGet(() -> localScore(session));
         String time = LocalDateTime.now().format(TIME_FORMAT);
         List<QuestionRecordResponse> questions = questionRecords(session);

backend/ruoyi-modules/ruoyi-aihr/src/test/java/org/dromara/aihr/service/AihrInterviewServiceTest.java

@@ -22,6 +22,7 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.anyDouble;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -185,6 +186,23 @@ class AihrInterviewServiceTest {
         assertTrue(serviceSource.contains("reviewed_time = NULL"));
     }
 
+    @Test
+    @Tag("dev")
+    void interviewFinishRequiresAtLeastOneRealAnswer() {
+        JdbcTemplate jdbcTemplate = mock(JdbcTemplate.class);
+        AihrModelSeedService modelService = mock(AihrModelSeedService.class);
+        when(modelService.tryChat(anyString(), anyString(), anyDouble())).thenReturn(Optional.empty());
+        AihrInterviewService service = new AihrInterviewService(new ObjectMapper(), modelService, jdbcTemplate);
+        var started = service.start(new StartRequest("candidate-empty", "候选人", "customer-service", "mobile"));
+
+        IllegalArgumentException error = assertThrows(IllegalArgumentException.class, () -> service.finish(
+            new FinishRequest(started.sessionId(), Map.of())
+        ));
+
+        assertEquals("请先提交至少一条有效面试回答", error.getMessage());
+        verify(jdbcTemplate, never()).update(anyString(), org.mockito.ArgumentMatchers.<Object[]>any());
+    }
+
     @Test
     @Tag("dev")
     void reviewResultRejectsOutOfRangeScore() {