tweak(video): 视频渲染预算拉到 30 分钟

backend/internal/provider/grok/console.go

@@ -46,7 +46,7 @@ const (
 	consoleMaxEditImages = 3
 
 	consoleVideoPollEvery = 2 * time.Second
-	consoleVideoDeadline  = 20 * time.Minute
+	consoleVideoDeadline  = 30 * time.Minute
 )
 
 // consoleSession is one minted DPoP token plus the key it is bound to. skew is

backend/internal/provider/grok/video.go

@@ -291,7 +291,7 @@ func (c *Client) createPost(ctx context.Context, client tlsclient.HttpClient, to
 // assets.grok.com is not anti-bot gated) until grok finishes rendering it.
 // 404 means "still rendering"; auth failures abort.
 func (c *Client) waitForAsset(ctx context.Context, client tlsclient.HttpClient, token, url string) error {
-	deadline := time.Now().Add(20 * time.Minute)
+	deadline := time.Now().Add(30 * time.Minute)
 	for {
 		if err := ctx.Err(); err != nil {
 			return err