refactor(backend): simplify response structure in GetCompressImage function and add GetRedisFileKeysAll function for retrieving all file keys

backend/internal/controllers/image.go

@@ -67,8 +67,5 @@ func GetCompressImage(c echo.Context) error {
 			})
 		}
 	}
-	return utils.HTTPSuccessHandler(c, map[string]any{
-		"status": "success",
-		"data":   taskInfo,
-	})
+	return utils.HTTPSuccessHandler(c, *taskInfo)
 }

backend/internal/models/file.go

@@ -58,3 +58,8 @@ func SetRedisFileInfo(fileId string, fileInfo RedisFileInfo) error {
 	_, err = rdb.HSet(ctx, "015:fileInfoMap", fileId, string(jsonData)).Result()
 	return err
 }
+
+func GetRedisFileKeysAll() ([]string, error) {
+	rdb, ctx := utils.GetRedisClient()
+	return rdb.HKeys(ctx, "015:fileInfoMap").Result()
+}