重构自学模块

package.json

@@ -22,6 +22,7 @@
     "copy-text-to-clipboard": "^3.2.0",
     "date-fns": "^4.1.0",
     "highlight.js": "^11.11.1",
+    "md-editor-v3": "^5.7.0",
     "naive-ui": "^2.41.1",
     "normalize.css": "^8.0.1",
     "pinia": "^3.0.3",
@@ -32,7 +33,6 @@
   },
   "devDependencies": {
     "@iconify/vue": "^5.0.0",
-    "@shikijs/markdown-it": "^3.6.0",
     "@types/canvas-confetti": "^1.9.0",
     "@types/node": "^24.0.1",
     "@vitejs/plugin-vue": "^5.2.4",
@@ -41,7 +41,6 @@
     "typescript": "^5.8.3",
     "unplugin-auto-import": "^19.3.0",
     "unplugin-vue-components": "^28.7.0",
-    "unplugin-vue-markdown": "^28.3.1",
     "vite": "^6.3.5",
     "vue-tsc": "^2.2.10"
   }