feat: 完善课程模板通用能力

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/pages/Components/index.tsx

@@ -1,11 +1,10 @@
 import { useRef, useState } from "react";
 import { GuideSpotlight } from "@/components/common";
-import { getAppPortalRoot } from "@/components/common/canvasPortal";
 import { Button } from "@/components/ui/button";
 import { Overlay, type OverlayProps } from "@/components/ui/overlay";
 import { Portal } from "@/components/ui/portal";
 import { useToast } from "@/components/ui/toast";
-import { useCourseCanvas } from "@/course-runtime/canvas";
+import { getAppPortalRoot, useCourseCanvas } from "@/course/canvas";
 import { useSpotlightStore } from "@/stores";
 import { DragDropDemo } from "./DragDropDemo";