fix(media): 补齐分集转码绑定与产物回填

sql/patch-2026-10-22-bind-zero-transcode.sql

@@ -0,0 +1,26 @@
+-- Author: fruit.com.cn
+-- 将已有零绑定转码任务按分集视频 URL 回填（幂等，仅处理未完成任务）
+
+BEGIN;
+
+UPDATE transcode_task t
+SET drama_id = e.drama_id,
+    episode_id = e.id
+FROM drama_episode e
+WHERE t.deleted = 0
+  AND e.deleted = 0
+  AND t.status IN ('QUEUED', 'RUNNING')
+  AND t.episode_id = 0
+  AND e.drama_id > 0
+  AND split_part(e.video_url, '?', 1) = split_part(t.source_url, '?', 1);
+
+UPDATE drama_episode e
+SET video_asset_id = t.media_asset_id
+FROM transcode_task t
+WHERE t.deleted = 0
+  AND t.episode_id = e.id
+  AND t.media_asset_id > 0
+  AND e.video_asset_id = 0
+  AND split_part(e.video_url, '?', 1) = split_part(t.source_url, '?', 1);
+
+COMMIT;