fix(canvas): use server video duration options

src/pages/ImageCanvas/index.tsx

@@ -265,9 +265,6 @@ type EditableGenerationParameters = Partial<Pick<
   'resolution' | 'aspectRatio' | 'durationSeconds'
 >>;
 
-const MIN_VIDEO_DURATION_SECONDS = 2;
-const MAX_VIDEO_DURATION_SECONDS = 6;
-
 function hasSelectableVideoDuration(
   quote: DesignGenerationQuote,
   parameters: DesignGenerationParameters,
@@ -275,8 +272,6 @@ function hasSelectableVideoDuration(
   if (quote.medium !== 'video') return true;
   const durationSeconds = parameters.durationSeconds;
   return durationSeconds !== null
-    && durationSeconds >= MIN_VIDEO_DURATION_SECONDS
-    && durationSeconds <= MAX_VIDEO_DURATION_SECONDS
     && quote.generationOptions.durations.some((option) => (
       !option.disabled && option.value === durationSeconds
     ));
@@ -745,11 +740,7 @@ function QuoteCard({
   onConfirm: () => void;
 }) {
   const availableResolutions = quote.generationOptions.resolutions.filter((option) => !option.disabled);
-  const availableDurations = quote.generationOptions.durations.filter((option) => (
-    !option.disabled
-    && option.value >= MIN_VIDEO_DURATION_SECONDS
-    && option.value <= MAX_VIDEO_DURATION_SECONDS
-  ));
+  const availableDurations = quote.generationOptions.durations.filter((option) => !option.disabled);
   const availableAspectRatios = quote.generationOptions.aspectRatios.filter((option) => !option.disabled);
   const selectedDuration = availableDurations.some(
     (option) => option.value === draft.generationParameters.durationSeconds,
@@ -1210,7 +1201,7 @@ export function ImageCanvas() {
     }
     if (!quote || quote.quoteId !== quoteId
       || !hasSelectableVideoDuration(quote, draft.generationParameters)) {
-      setActionError('请选择 2 至 6 秒的视频时长，等待重新报价完成后再确认。');
+      setActionError('请选择服务端提供的视频时长，等待重新报价完成后再确认。');
       return;
     }
     const requestedWorkspaceId = workspace.workspaceId;