feat(*): 创作工作台 - 完善媒体上传预览与连线交互并修复任务章节及日志筛选

web/src/components/canvas/infinite-canvas.tsx

@@ -397,6 +397,7 @@ export function InfiniteCanvas({ containerRef, viewport, appearance, backgroundM
     return (
         <div
             ref={containerRef}
+            data-canvas-viewport
             data-canvas-pan-state={isPanning ? "grabbing" : isSpacePressed || !boxSelectEnabled ? "grab" : undefined}
             className={`relative h-full w-full select-none overflow-hidden touch-none ${isPanning ? "cursor-grabbing" : isSpacePressed || !boxSelectEnabled ? "cursor-grab" : "canvas-cursor-select"}`}
             style={{