fix mermaid

package.json

@@ -23,7 +23,7 @@
     "@vueuse/router": "^14.3.0",
     "@wangeditor-next/editor": "^5.7.0",
     "@wangeditor-next/editor-for-vue": "^5.1.14",
-    "axios": "^1.16.0",
+    "axios": "^1.16.1",
     "canvas-confetti": "^1.9.4",
     "chart.js": "^4.5.1",
     "client-zip": "^2.5.0",
@@ -33,7 +33,8 @@
     "fflate": "^0.8.2",
     "highlight.js": "^11.11.1",
     "md-editor-v3": "^6.5.0",
-    "mermaid": "^11.14.0",
+    "mermaid": "^11.15.0",
+    "mermaid-legacy": "npm:mermaid@^9.4.3",
     "naive-ui": "^2.44.1",
     "nanoid": "^5.1.11",
     "normalize.css": "^8.0.1",