补齐画板视频封面持久化

生成画板视频时截取首帧并上传为封面将视频生成结果写入素材库并保留 thumbnailSrc 同步后端契约、SpacetimeDB 绑定、前端素材库和画布层映射补充相关测试与文档说明
2026-06-28 00:22:59 +08:00
parent 5976c2b337
commit 63790e22ef
24 changed files with 348 additions and 65 deletions
@@ -1810,6 +1810,12 @@
          "imageSrc": {
            "type": "string"
          },
+          "thumbnailSrc": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
          "objectKey": {
            "type": [
              "string",