feat(canvas): 添加视频模型配置和生成功能

- 在系统配置中新增 defaultVideoModel 字段用于设置默认视频模型
- 更新应用配置模态框以支持视频模型的选择和验证
- 修改画布节点逻辑以支持视频类型的生成配置
- 实现视频节点的生成和上传功能
- 更新模型选择器组件以支持视频模型选择
- 在管理后台设置页面添加视频模型配置选项
- 优化模型选择器的层级和交互体验
- 添加对 DeepSeek 和 GLM 模型图标的支持

web/src/app/(user)/canvas/[id]/canvas-client-page.tsx

@@ -1819,7 +1819,7 @@ function InfiniteCanvasPage() {
                           size: savedImageMetadata.size || effectiveConfig.size,
                           count: "1",
                       }
-                    : { ...buildGenerationConfig(effectiveConfig, sourceNode, node.type === CanvasNodeType.Text ? "text" : "image"), count: "1" };
+                    : { ...buildGenerationConfig(effectiveConfig, sourceNode, node.type === CanvasNodeType.Text ? "text" : node.type === CanvasNodeType.Video ? "video" : "image"), count: "1" };
             if (!isAiConfigReady(generationConfig, generationConfig.model)) {
                 openConfigDialog(true);
                 return;
@@ -1855,6 +1855,11 @@ function InfiniteCanvasPage() {
                     setNodes((prev) => prev.map((item) => (item.id === node.id ? { ...item, type: CanvasNodeType.Text, metadata: { ...item.metadata, content: answer || streamed, prompt, status: NODE_STATUS_SUCCESS } } : item)));
                     return;
                 }
+                if (node.type === CanvasNodeType.Video) {
+                    const video = await uploadMediaFile(await requestVideoGeneration(generationConfig, prompt), "video");
+                    setNodes((prev) => prev.map((item) => (item.id === node.id ? { ...item, metadata: { ...item.metadata, ...videoMetadata(video), prompt, model: generationConfig.model, size: generationConfig.size } } : item)));
+                    return;
+                }
 
                 const image = useReferenceImages ? await requestEdit(generationConfig, prompt, retryReferenceImages).then((items) => items[0]) : await requestGeneration(generationConfig, prompt).then((items) => items[0]);
                 const uploadedImage = await uploadImage(image.dataUrl);