fix(media): 转码错误信息截断并上报进度

fruitshorts-admin-api/src/main/java/com/fruitshorts/admin/service/EpisodeTranscodeAdminService.java

@@ -65,6 +65,7 @@ public class EpisodeTranscodeAdminService {
             result.setProgress(0);
             result.setRetryCount(0);
             result.setErrorMsg("");
+            result.setUpdatedAt(episode.getUpdatedAt());
             return result;
         }
         result.setTaskId(idString(task.getId()));
@@ -72,6 +73,7 @@ public class EpisodeTranscodeAdminService {
         result.setProgress(task.getProgress());
         result.setRetryCount(task.getRetryCount());
         result.setErrorMsg(task.getErrorMsg());
+        result.setUpdatedAt(task.getUpdatedAt());
         return result;
     }
 

fruitshorts-admin-api/src/main/java/com/fruitshorts/admin/vo/EpisodeTranscodeRespVO.java

@@ -7,6 +7,7 @@ import com.fruitshorts.media.vo.MediaThumbnailRespVO;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
+import java.time.LocalDateTime;
 import java.util.List;
 
 /** 后台剧集编辑页一次性获取的转码状态。 */
@@ -21,6 +22,7 @@ public class EpisodeTranscodeRespVO {
     private Integer progress;
     private Integer retryCount;
     private String errorMsg;
+    private LocalDateTime updatedAt;
     private List<MediaRenditionRespVO> renditions = List.of();
     private MediaThumbnailRespVO thumbnails;
 }

fruitshorts-admin-api/src/test/java/com/fruitshorts/admin/controller/EpisodeTranscodeContractTest.java

@@ -9,6 +9,8 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.test.web.servlet.MockMvc;
 
+import java.time.LocalDateTime;
+
 import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.mock;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
@@ -38,6 +40,7 @@ class EpisodeTranscodeContractTest {
         vo.setTaskId(taskId);
         vo.setStatus("SUCCESS");
         vo.setProgress(100);
+        vo.setUpdatedAt(LocalDateTime.of(2026, 10, 22, 15, 10));
         given(service.detail(Long.parseLong(episodeId))).willReturn(vo);
 
         mockMvc.perform(get("/admin/episodes/" + episodeId + "/transcode"))
@@ -47,7 +50,8 @@ class EpisodeTranscodeContractTest {
                 .andExpect(jsonPath("$.data.mediaAssetId").value(mediaAssetId))
                 .andExpect(jsonPath("$.data.taskId").value(taskId))
                 .andExpect(jsonPath("$.data.status").value("SUCCESS"))
-                .andExpect(jsonPath("$.data.progress").value(100));
+                .andExpect(jsonPath("$.data.progress").value(100))
+                .andExpect(jsonPath("$.data.updatedAt").value("2026-10-22T15:10:00"));
     }
 
     @Test

fruitshorts-admin-api/src/test/java/com/fruitshorts/admin/service/EpisodeTranscodeAdminServiceTest.java

@@ -11,6 +11,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import java.util.List;
+import java.time.LocalDateTime;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.BDDMockito.given;
@@ -77,6 +78,7 @@ class EpisodeTranscodeAdminServiceTest {
         task.setMediaAssetId(MEDIA_ASSET_ID);
         task.setStatus("SUCCESS");
         task.setProgress(100);
+        task.setUpdatedAt(LocalDateTime.of(2026, 10, 22, 15, 10));
         given(outputService.latestTask(MEDIA_ASSET_ID)).willReturn(task);
 
         var result = service.detail(EPISODE_ID);
@@ -84,6 +86,7 @@ class EpisodeTranscodeAdminServiceTest {
         assertThat(result.getEpisodeId()).isEqualTo("2113150431755636737");
         assertThat(result.getMediaAssetId()).isEqualTo("2113150398670966786");
         assertThat(result.getTaskId()).isEqualTo("2113150398935207938");
+        assertThat(result.getUpdatedAt()).isEqualTo(task.getUpdatedAt());
     }
 
     @Test